PLATES AND CONNECTORS FOR TIMBER - 2020 by Rothoblaas

PLATES AND CONNECTORS FOR TIMBER BUILDINGS, STRUCTURES AND OUTDOOR

CONTENTS

CONCEALED BEAM JOINTS

ALUMINI �� 18 ALUMIDI ��26 ALUMAXI ��38 SBD �� 48 STA ��54 LOCK T TIMBER �� 60 LOCK T EVO TIMBER �� 74 LOCK C CONCRETE �� 84 UV-T TIMBER ��94 UV-C CONCRETE ��104 DISC FLAT �� 108 DISC FLAT A2 �� 116 VGU ��124 VGU PLATE T TIMBER ��132 NEO ��138

EPOXY ADHESIVES AND HOOKED PLATES

143

XEPOX ��146 SHARP METAL ��160

PANELS AND BUILDING JOINTS

169

WHT �� 174 TITAN N ��186 TITAN S �� 204 TITAN F ��218 TITAN V �� 228 TITAN SILENT �� 234 WHT PLATE C CONCRETE �� 242 WHT PLATE T TIMBER �� 250 TITAN PLATE C CONCRETE �� 254 TITAN PLATE T TIMBER �� 262 ALU START �� 266 SLOT ��276 SPIDER �� 292 PILLAR �� 308 X-RAD �� 324

ANGLE BRACKETS, HANGERS AND PERFORATED PLATES

339

ANCHORS FOR CONCRETE

483

WBR �� 340

SKR ��488

WBR A2 | AISI304 �� 346

SKS ��488

WKR �� 348

SKR-E �� 491

WZU ��352

SKS-E �� 491

WKF �� 358 WBO - WVS - WHO �� 360

AB1 ��494

LOG �� 364

AB1 A4 ��496 AB7 ��498

SPU �� 365

ABS ��500

BSA �� 368

ABU �� 502

BSI ��376

AHZ �� 503 AHS �� 503

LBV �� 380 LBB �� 386

NDC ��504 NDS - NDB ��506 NDK - NDL �� 507

POST BASES AND JOINTS FOR TERRACES

395

R10 - R20 - R30 �� 398 R40 ��404 R70 - R90 �� 407

MBS ��508 VIN-FIX ��509 VIN-FIX PRO �� 511 VIN-FIX PRO NORDIC ��514 EPO-FIX PLUS ��517 INA �� 520

X10 ��408

IHP - IHM ��521

F70 ��414 S50 �� 420 P10 - P20 �� 424

BOLTS AND RODS

525

TYP F �� 428 TYP FD �� 436

KOS �� 526

TYP M ��440

KOT ��531 EKS �� 532

ROUND ��446

MET �� 534

BRACE ��448 GATE �� 450

DBB ��540 ZVB �� 542

ALU TERRACE �� 452 SUPPORT �� 458 JFA �� 464 FLAT | FLIP �� 466 TVM �� 468 GAP �� 470 TERRALOCK ��472 GROUND COVER ��474 NAG ��475 GRANULO ��476

SCREWS AND NAILS FOR PLATES

547

LBA �� 548 LBS �� 552 HBS PLATE �� 556 HBS PLATE EVO ��560 KKF AISI410 �� 562 VGS �� 564

TERRA BAND UV �� 478

COLLATED FASTENERS FOR TIMBER �� 567

PROFID �� 479

HBS COIL �� 568

FROM IDEA TO MARKET CREATION OF A NEW PRODUCT “Here, everything that involves the product is done internally. We take care of the entire process from the idea to its development, through to its entry on the market. We design, we test, we carry out checks on our products and we follow the entire certification process. We prepare the data sheets and the construction details, we develop the calculation and verification software, and we offer complete consulting.

UNIVERSITY, RESEARCH CENTRES

DESIGNERS

We are responsible for advertising, we create our catalogues, and we are directly involved in every aspect of packaging and labelling. And we do all this with the skills we have within our company.” Robert Blaas, founder and CEO

SALES NETWORK

NETWORK ROTHOBLAAS

IDEAS - REQUIREMENTS - SUGGESTIONS

ROTHOBLAAS Through an idea management flow the collected inputs are evaluated

RESEARCH AND DEVELOPMENT Initiation of procedures for the development of the new feature

4 | FROM IDEA TO MARKET

CUSTOMERS

ANALYSIS

COLLABORATIONS

PRODUCT DEVELOPMENT

In-depth study of the current status of the technique, cost and timing analysis

Search for collaborations with academic partners or third parties

Prototype development and continuous improvement until the optimal result is achieved

CERTIFICATION / QUALITY CONTROL Product certification process by independent international bodies

PRODUCTION

LOGISTICS

MARKET LAUNCH

Start of production

Labelling, planning for shipments and storage in our logistics centres

Marketing activities aimed at promoting the new product placed on international markets

NETWORK ROTHOBLAAS UNIVERSITY, RESEARCH CENTRES

DESIGNERS

SALES NETWORK

CUSTOMERS FROM IDEA TO MARKET | 5

QUALITY CONTROL PRODUCTION PHASES CONTROLS Rothoblaas designs, tests, manufactures, certifies and markets its products under its own name and brand. The manufacturing process is systematically checked during each phase (FPC), the whole procedure strictly monitored and controlled to ensure compliance and quality at each stage. EXAMPLE OF ANGLE BRACKETS PRODUCTION STEPS

RAW MATERIAL

SHEARING

FINISHED PRODUCT

The zinc plated steel coil enters the factory

Coil shearing by a hydraulic press

Three-dimensional plate complying with technical specifications and mechanical requirements

VERIFICATION

MANUFACTURER

PUNCHING

FORMING

Search for supplier with qualifications that meet Rothoblaas' high quality standards

Drilling and pressing according to the production technical design

Transformation of the plane sheet in a three dimensional plate

ALL-IN-ONE The automatic pressing line is designed to perform the various manufacturing phases sequentially: punching, shearing and forming are realized within a single cycle without need of further treatments (e.g. welding).

TRACEABILITY During the production process each plate is assigned an identifying code (batch number) which guarantees the traceability of raw materials before the product is placed on the market.

6 | QUALITY CONTROL

CE - ETA - DoP As manufacturer, Rothoblaas is responsible for its products covered by ETA. These products must be provided with CE marking, normally on the label, which ensures legal validity and contains all the information necessary to identify the product including:

1. Identification of the producer 2. ETA number 3. Declaration of performance 1 ---------------------Rotho Blaas 2 ---------------------ETA 11/0496 3 ---------------------DoP: TITAN_DoP_110496 (www.rothoblaas.com)

PACKAGING AND LABELLING

QUALITY CONTROL The Factory Production Control (FPC) continues with a second phase of checks performed at the central warehouse

Packaging and labelling

VERIFICATION

PROTECTIVE TREATMENTS

STORAGE

Coating process (e.g. zinc plating)

Acceptance of the incoming goods and sampling by the Quality Check Laboratory

SELLING AND TRACEABILITY With the batch number and the selling order it is possible to track all the manufacturing phases: the customer can be sure to obtain a certified quality product

CONTROLS A. Verification, check and registration of the incoming raw materials B. Geometric inspection according to regulated tolerances and calibration C. Check on coating thickness D. Inspection of package and label E. QUALITY CONTROL Geometric inspection according to regulated tolerances and calibration

QUALITY CONTROL | 7

REACH REGULATION Registration, Evaluation, Authorisation of Chemicals (CE n. 1907/2006) It’s the European regulation for the management of chemical substances as such or as components of preparations (mixtures) and items (ref. Art. 3 points 2 and 3). This regulation attributes precise responsibilities to each link of the supply chain regarding the communication and safe use of hazardous substances.

WHAT’S IT FOR? REACH aims to ensure a high level of human health and environmental protection. The introduction of REACH requires the collection and communication of complete information on the dangers of certain substances and their safe use within the supply chain (regulation CLP 1272/2008). The regulation provides for continual updating of the information and control by ECHA (the European Chemicals Agency).

We have added REACH compliance among the selection parameters for our products and production processes. In this way, we can guarantee high quality standards in terms of health and environmental protection.

In particular, for users, these concepts translate into: • SVHC - Substances Of Very High Concern List of any hazardous substances contained in items • SDS - Safety Data Sheet Document that contains the information for correct management of every hazardous mixture

REACH COMPLIANCE

PROJECT

PRODUCTION

REACH COMPLIANCE

MARKET

Product design and choice of the most suitable materials.

Start of the production phase with evaluation of the substances used during the entire process.

Analysis/screening on samples to verify REACH compliance.

Product meeting the requirements of REACH regulation and Rothoblaas quality standards.

8 | REACH REGULATION

REACH PROCESS

INFORMATION

ECHA

MANUFACTURER OR IMPORTER

European Chemicals Agency RESTRICTED SUBSTANCES

PRODUCTS

AUTHORISED SUBSTANCES

MIXTURE

≥ 0,1 %

< 0,1 %

NOT HAZARDOUS

SVHC

SVHC communication NOT REQUIRED

SDS NOT REQUIRED

COMMUNICATION REQUIRED

SDS

SAFETY DATA SHEET

REQUIRED

TECHNICAL CONSULTANT & TECHNICAL SALESMAN

INFORMATION REQUESTS

MARKET

SUBSTANCES OF VERY HIGH CONCERN

HAZARDOUS

REACH REGULATION

ARTICLES

REACH PROCESS | 9

CONCEALED BEAM JOINTS

ALUMINI CONCEALED BRACKET WITHOUT HOLES . . . . . . . . . . . . . . . . . . . 18

ALUMIDI CONCEALED BRACKET WITH AND WITHOUT HOLES . . . . . . . . 26

ALUMAXI CONCEALED BRACKET WITH AND WITHOUT HOLES . . . . . . . . 38

SBD SELF-DRILLING DOWEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

STA SMOOTH DOWEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

LOCK T CONCEALED HOOK TIMBER-TO-TIMBER CONNECTOR . . . . . . . . . . . . . . . . . . . . . . . . . 60

LOCK T EVO OUTDOOR CONCEALED HOOK TIMBER-TO-TIMBER CONNECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . 74

LOCK C CONCEALED HOOK TIMBER-TO-CONCRETE CONNECTOR. . . . . . . . . . . . . . . . . . . . . . 84

UV-T CONCEALED HOOK TIMBER-TO-TIMBER CONNECTOR . . . . . . . . . . . . . . . . . . . . . . . . . 94

UV-C CONCEALED HOOK TIMBER-TO-CONCRETE CONNECTOR. . . . . . . . . . . . . . . . . . . . . 104

DISC FLAT REMOVABLE CONCEALED CONNECTOR. . . . . . . . . . . . . . . . . . . 108

DISC FLAT A2 REMOVABLE CONCEALED CONNECTOR. . . . . . . . . . . . . . . . . . . . 116

VGU 45° WASHER FOR VGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

VGU PLATE T PLATE FOR TENSILE LOADS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

NEO NEOPRENE SUPPORTING PLATES. . . . . . . . . . . . . . . . . . . . . . . . . 138

CONCEALED BEAM JOINTS | 13

MAIN–SECONDARY JOINT The wide choice of connection systems are applicable to many different design demands: joints between timber elements must ensure static resistance and reliability under fire conditions, while providing an optimal aesthetic result.

STATIC SAFETY DEFINITION

The main-to-secondary beam connection in timber structures can be schematised as a hinge. This type of joint restrains the element translation but not its rotation, differently from the encastre (fixed end) that is usually found in concrete structures. Hinge nodes can transfer shear force and axial force from secondary to main joist but cannot bear bending moment or torsion.

HINGE

ENCASTRE (FIXED END)

ANALYSIS FV

The connection system is not a punctual joint, as it is realized through the interaction of more elements. The geometry of the connection creates, along with the shear transfer, an extra “parasitic” bending moment. Consequently, additional stress generates on the elements (tension on the fasteners and compression on the main beam).

SOLUTION The load bearing capacity values are certified (CE marking), computable (according to ETA) and refined by Rothoblaas based on the designer needs (technical documentation).

ETA

Fax

Flat Fup

Depending on connector typology, different values of load bearing capacity are obtained according to the loading direction: • Fv = shear load directed towards the bottom • Fup = shear load directed towards the top • Flat = lateral shear load • Fax = axial load (tension)

14 | MAIN–SECONDARY JOINT | CONCEALED BEAM JOINTS

AESTHETIC REQUIREMENTS “Everyone sees what you appear to be, few experience what you really are.” [N. Machiavelli]

CONCEALED JOINT

VISIBLE JOINT

The connectors are placed entirely inside the timber elements to provide an optimal aesthetic result.

The metal fasteners are placed on the surface of the timber element, thus being visible and with a high aesthetic impact.

FIRE PROTECTION Timber structures properly designed ensure high performance also under fire circumstances.

TIMBER

METAL

Timber is a slow-burning combustible material. Under fire conditions there is a reduction of the cross section, with the portion not affected by carbonisation that remains efficient.

At high temperatures, metallic materials experience drastic deterioration of their mechanical properties.

METAL-TIMBER JOINTS

PROTECTED JOINTS

es. R45

The metallic connection is adequately protected and isolated by the surrounding timber. Hence there is no strength reduction and it maintains its mechanical properties unaltered for the required amount of time. (e.g. R45 = 45 minutes)

UNPROTECTED JOINTS

es. R15

The metallic connection is directly exposed to fire and has very limited load bearing capacity. (usually R15 = 15 minutes) Furthermore the reduction of the timber section due to carbonization, results in a reduction of the fastener pull-through depth.

CONCEALED BEAM JOINTS | MAIN–SECONDARY JOINT | 15

GEOMETRY Choice of connection system according to the secondary beam cross section

H B

SECONDARY BEAM B BASE [mm] 300

250

200

150

SECONDARY BEAM DEPTH H [mm] 100

0 mm

mm 0

200

400

600

800

1000

1200

ALUMINI 80 mm

45 mm

ALUMIDI 80 mm

100 mm

ALUMAXI 160 mm

432 mm

LOCK T 80 mm

35 mm

LOCK T FLOOR 1260 mm

135 mm

330 mm

LOCK T EVO 80 mm

53 mm

LOCK C 120 mm

70 mm

LOCK C FLOOR 1260 mm

135 mm

330 mm

UV-T 100 mm

45 mm

UV-C 180 mm

80 mm

DISC FLAT 100 mm

100 mm

DISC FLAT A2 100 mm

16 | GEOMETRY | CONCEALED BEAM JOINTS

100 mm

1680 mm

STRENGTH

Choice of the connection system according to the vertical component of the shear load

FIELDS OF USE

OUTDOOR

Flat Fup

EXTERNAL LOADS Fv

Fax

Flat

Fup

Fax

WOOD SIDE STRENGTH Rvk [kN] 0

100

150

200

250

300

ALUMINI 40 kN

ALUMIDI 155 kN

ALUMAXI 370 kN

LOCK T 65 kN

LOCK T FLOOR 80 kN

LOCK T EVO 35 kN

LOCK C 65 kN

LOCK C FLOOR 80 kN

UV-T 65 kN

UV-C 40 kN

DISC FLAT 65 kN

DISC FLAT A2 45 kN

CONCEALED BEAM JOINTS | STRENGTH | 17

ALUMINI

ETA 09/0361

CONCEALED BRACKET WITHOUT HOLES STEEL-ALUMINUM EN AW-6060 aluminium alloy bracket obtained by extrusion and therefore weld-free.

SLENDER STRUCTURES The small dimensions of the side allows to connect secondary beams with limited width (starting from 45 mm).

INCLINED JOINTS Certified strengths calculated in all directions: vertical, horizontal and axial. They can be used in inclined joints.

CHARACTERISTICS FOCUS

concealed joints

TIMBER SECTIONS from 45 x 70 mm to 140 x 280 mm STRENGTH

Rv,k up to 36 kN

FASTENERS

HBS PLATE EVO, SBD, STA, SKS

VIDEO Scan the QR Code and watch the video on our YouTube channel

MATERIAL Aluminium alloy three dimensional perforated plate.

FIELDS OF USE Timber-to-timber and timber-to-concrete shear joints, both perpendicular and inclined • solid timber and glulam • CLT, LVL • timber based panels

18 | ALUMINI | CONCEALED BEAM JOINTS

QUICK ASSEMBLING The fastening, simple and fast, is realized through screws HBS PLATE EVO on the main beam and self-drilling or smooth dowels on the secondary beam.

INVISIBLE The concealed connection provides a satisfying appearance to the joint and fulfils the fire safety requirements. When adequately protected by timber, it is suitable for outdoor use.

CONCEALED BEAM JOINTS | ALUMINI | 19

CODES AND DIMENSIONS ALUMINI CODE

type

ALUMINI65

without holes

ALUMINI95 ALUMINI125 ALUMINI155 ALUMINI185 ALUMINI215 ALUMINI2165

pcs

[mm] 65

without holes

125

without holes

155

without holes

185

without holes

215

without holes

2165

pcs

HBS PLATE EVO CODE

[mm]

HBSPEVO550

TX25

200

HBSPEVO560

TX25

200

pcs

d1 L

SBD CODE

[mm]

SBD7555

7,5

TX40

SBD7575

7,5

TX40

SBD7595

7,5

TX40

pcs

[mm]

TX30

100

colour

pcs

purple

TX30

100

d1 L

SKS ALUMINI CODE SKSALUMINI660

d1 L

LONG BIT CODE

[mm] TX30200

200

MATERIAL AND DURABILITY

EXTERNAL LOADS

ALUMINI: EN AW-6060 aluminium alloy. To be used in service classes 1 and 2 (EN 1995-1-1).

FIELDS OF USE • Timber-to-timber, timber-to-concrete and timber-to-steel joints • Perpendicular and inclined joints

Flat Fup

Fax

ADDITIONAL PRODUCTS - FASTENING type

description

support

page

[mm] HBS PLATE EVO

screw for timber

568

SBD

self-drilling dowel

7,5

STA

smooth dowel

20 | ALUMINI | CONCEALED BEAM JOINTS

GEOMETRY

LA LB

10 25 10

ALUMINI

17,5 15

thickness

[mm]

wing width

[mm]

web length

[mm]

109,9

small flange-holes

Ø1

[mm]

7,0

Ø1

s s

INSTALLATION MINIMUM DISTANCES

e a4,c

a4,t

a2 as

secondary beam-timber

a4,c

self-drilling dowel ≥10 mm

smooth dowel

SBD Ø7,5

STA Ø8

dowel-dowel

[mm]

≥3d

≥ 23

≥ 24

dowel-top of beam

a4,t [mm]

≥4d

≥ 30

≥ 32

dowel-bottom of beam

a4,c [mm]

≥3d

≥ 23

≥ 24

dowel-bracket edge

[mm] ≥ 1,2 d0(1)

≥ 10

≥ 12

dowel-main beam

[mm]

(1) Hole diameter.

main beam-timber

HBS PLATE EVO Ø5 screw a4,c [mm]

first connector-top of beam

≥5d

≥ 25

ASSEMBLY a4,t

a4,c 05

CONCEALED BEAM JOINTS | ALUMINI | 21

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Fv

≥10 mm

ALUMINI with SBD self-drilling dowels SECONDARY BEAM ALUMINI

MAIN BEAM SBD dowels

HBS PLATE EVO screw

Ø7,5(2)

Ø5 x 60

[mm]

[pcs Ø x L]

[pcs]

[kN]

2 - SBD Ø7,5 x 55

2,9

H(1)

[mm]

Rv,k

120

3 - SBD Ø7,5 x 55

7,1

125

150

4 - SBD Ø7,5 x 55

12,9 19,9

155

180

5 - SBD Ø7,5 x 55

185

210

6 - SBD Ø7,5 x 55

27,9

215

240

7 - SBD Ø7,5 x 55

36,5

ALUMINI with STA dowels SECONDARY BEAM

MAIN BEAM

ALUMINI

STA dowels

HBS PLATE EVO screw

H(1)

Ø8(3)

Ø5 x 60

[mm]

[pcs Ø x L]

[pcs]

[kN]

2 - STA Ø8 x 60

2,9

120

3 - STA Ø8 x 60

7,1

125

150

4 - STA Ø8 x 60

12,9

155

180

5 - STA Ø8 x 60

19,9

185

210

6 - STA Ø8 x 60

27,9

215

240

7 - STA Ø8 x 60

35,0

NOTES: (1)

The bracket with height H is available pre-cut (codes on page 20) or can be obtained from the rod ALUMINI2165.

(2)

SBD self-drilling dowels Ø7,5: My,k = 42000 Nmm.

(3)

STA smooth dowels Ø8: My,k = 24100 Nmm.

22 | ALUMINI | CONCEALED BEAM JOINTS

General calculation principles see page 25.

Rv,k

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Flat bJ

Flat

ALUMINI with SBD self drilling dowels and STA dowels SECONDARY BEAM(1)

MAIN BEAM

ALUMINI

HBS PLATE EVO screw

Rlat,k,alu

Rlat,k,beam(2)

[pcs]

[kN]

1,6

3,1

2,3

4,1

150

3,0

5,1

180

3,8

6,2

210

4,5

7,2

240

5,2

8,2

Ø5 x 60

[mm]

120

125

155

185

215

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Fax bJ

Fax

ALUMINI with SBD self-drilling dowels SECONDARY BEAM ALUMINI

MAIN BEAM

SBD dowels

HBS PLATE EVO screw

Ø7,5

Ø5 x 60

[mm]

[pcs Ø x L]

[pcs]

[kN]

2 - SBD Ø7,5 x 55

15,5

120

3 - SBD Ø7,5 x 55

24,3

150

4 - SBD Ø7,5 x 55

33,2

180

5 - SBD Ø7,5 x 55

42,0

210

6 - SBD Ø7,5 x 55

50,8

240

7 - SBD Ø7,5 x 55

59,7

[mm]

125 155 185 215

Rax,k

NOTES: (1)

The strength values are valid for both SBD Ø7,5 self-drilling dowels and STA Ø8 dowels.

(2)

Glulam GL24h.

General calculation principles see page 25.

CONCEALED BEAM JOINTS | ALUMINI | 23

RECOMMENDED STATIC VALUES | TIMBER-TO-CONCRETE JOINT | Fv SCREW ANCHOR bJ

H hJ

ALUMINI with SBD self-drilling dowels SECONDARY BEAM TIMBER ALUMINI

MAIN BEAM UNCRACKED CONCRETE SKSALUMINI660 anchor(3)

SBD dowels

H(1)

[mm]

125

150

155

180

185

215

Ø7,5

Rv,k timber

Ø6 x 60

Rv,d concrete

[pcs Ø x L]

[kN]

[pcs]

[kN]

3 - SBD Ø7,5 x 55

15,6

6,0

3 - SBD Ø7,5 x 55

15,6

7,3

210

4 - SBD Ø7,5 x 55

20,8

9,1

240

5 - SBD Ø7,5 x 55

26,1

11,5

ALUMINI with STA dowels SECONDARY BEAM TIMBER ALUMINI

MAIN BEAM UNCRACKED CONCRETE SKSALUMINI660 anchor(3)

STA dowels

H(1)

[mm]

125

150

155

180

185

215

Ø8

Rv,k timber

Ø6 x 60

Rv,d concrete

[pcs Ø x L]

[kN]

[pcs]

[kN]

3 - STA Ø8 x 60

15,0

6,0

3 - STA Ø8 x 60

15,0

7,3

210

4 - STA Ø8 x 60

20,0

9,1

240

5 - STA Ø8 x 60

25,0

11,5

ANCHORS INSTALLATION

L ALUMINI125

anchor SKSALUMINI660

ALUMINI155

ALUMINI185

ALUMINI215

[mm]

6,0

≈ 10

24 | ALUMINI | CONCEALED BEAM JOINTS

Tinst [Nm]

TX30

Tinst d0

d1 t

GENERAL PRINCIPLES:

STATIC VALUES | Flat | Fax

• Resistance values for the fastening system are valid for the calculation examples shown in the table.

TIMBER-TO-TIMBER

• The calculation process used a timber characteristic density of ρ k = 385 kg/m3 and C20/25 concrete with a thin reinforcing layer, where edge-distance is not a limiting factor. • The coefficients kmod and yM should be taken according to the current regulations used for the calculation. • Dimensioning and verification of timber and concrete elements must be carried out separately.

STATIC VALUES | F v

• Characteristic values are consistent with EN 1995-1-1 and in accordance with ETA-09/0361. The design values are obtained from the characteristic values as follows:

Rlat,d = min Rlat,d = min

Rlat,k,alu Rlat,k,alu γM,alu γM,alu k Rlat,k,beam mod Rlat,k,beam kmod γM,T γM,T

kmod R Rax,d = Rax,k γM kmod Rax,d = ax,k γM

with yM,T partial coefficient of the timber.

TIMBER-TO-TIMBER • Characteristic values are consistent with EN 1995-1-1 and in accordance with ETA-09/0361. The design values are obtained from the characteristic values as follows:

Rd =

Rk kmod γM

• In some cases the connection shear strength R V,k is notably large and may be higher than the secondary beam strength. Particular attention should be paid to the shear check of the reduced timber cross-section in correspondence with the bracket location.

STATIC VALUES | F v TIMBER-TO-CONCRETE • Characteristic values on wood side are consistent with EN 1995-1-1 and in accordance with ETA-09/0361. The strength values of anchors for concrete are recommended design values derived from laboratory data. Fastening on concrete is not CE marked, it is advisable to use the joint system for non-structural applications. Design resistance values can be obtained from the tabled values as follows:

Rd = min

Rk, timber kmod γM Rd, concrete

• Because of the arrangement of the fasteners on concrete, special care should be taken during installation.

CONCEALED BEAM JOINTS | ALUMINI | 25

ALUMIDI

ETA 09/0361

CONCEALED BRACKET WITH AND WITHOUT HOLES INCLINED JOINTS Certified strengths calculated in all directions: vertical, horizontal and axial. They can be used in seismic areas and in mixed-mode bending.

STEEL-ALUMINUM EN AW-6005A high strength aluminium alloy bracket, obtained by extrusion and therefore weld-free.

TIMBER AND CONCRETE Optimal hole spacing both for timber (nails or screws) and reinforced concrete (chemical or screwed anchor) joints.

CHARACTERISTICS FOCUS

concealed joints

TIMBER SECTIONS from 80 x 100 mm to 200 x 520 mm STRENGTH

Rv,k up to 150 kN

FASTENERS

LBA, LBS, SBD, STA, SKR

VIDEO Scan the QR Code and watch the video on our YouTube channel

MATERIAL Aluminium alloy three dimensional perforated plate.

FIELDS OF USE Timber-to-timber and timber-to-concrete shear joints, both perpendicular and inclined • solid timber and glulam • CLT, LVL • timber based panels

26 | ALUMIDI | CONCEALED BEAM JOINTS

INVISIBLE The concealed connection provides a satisfying appearance to the joint and fulfils the fire safety requirements. A countersink where the first hole is located, facilitates the introduction of the secondary beam from the top.

TIMBER AND CONCRETE For applications on concrete or other uneven surfaces the self-drilling dowels allow a greater installation tolerance when fastening the timber element. Values are certified, tested and consolidated.

CONCEALED BEAM JOINTS | ALUMIDI | 27

CODES AND DIMENSIONS ALUMIDI WITHOUT HOLES CODE

type

pcs

ALUMIDI80

without holes

ALUMIDI120

without holes

120

ALUMIDI160

without holes

160

ALUMIDI200

without holes

200

ALUMIDI240

without holes

240

ALUMIDI2200

without holes

2200

pcs

[mm] H

ALUMIDI WITHOUT HOLES WITH UPPER COUNTERSINK CODE

type

[mm] ALUMIDI280N

without holes

280

ALUMIDI320N

without holes

320

ALUMIDI360N

without holes

360

ALUMIDI400N

without holes

400

ALUMIDI440N

without holes

440

pcs

ALUMIDI WITH HOLES CODE

type

[mm] ALUMIDI120L

with holes

120

ALUMIDI160L

with holes

160

ALUMIDI200L

with holes

200

ALUMIDI240L

with holes

240

ALUMIDI280L

with holes

280

ALUMIDI320L

with holes

320

ALUMIDI360L

with holes

360

MATERIAL AND DURABILITY

EXTERNAL LOADS

ALUMIDI: EN AW-6005A aluminium alloy. To be used in service classes 1 and 2 (EN 1995-1-1).

FIELDS OF USE • Timber-to-timber, timber-to-concrete and timber-tosteel joints • Secondary beam on main beam or on column • Perpendicular and inclined joints

Flat Fup

Fax

ADDITIONAL PRODUCTS - FASTENING type

description

support

page

[mm] LBA

Anker nail

LBS SBD STA

smooth dowel

SKR

screw anchor

488

VIN-FIX PRO

chemical anchor

514

EPO-FIX PLUS

chemical anchor

517

548

screw for plates

552

self-drilling dowel

7,5

28 | ALUMIDI | CONCEALED BEAM JOINTS

GEOMETRY ALUMIDI without holes

ALUMIDI without holes with upper countersink

ALUMIDI with holes

LB LA

LB 8 32 16

LB 86

23,4

23,4 20

Ø3

Ø2

Ø1

20 19 42 19

14 52 14

s s

ALUMIDI thickness

[mm]

wing width

[mm]

web length

[mm]

109,4

small flange-holes

Ø1

[mm]

5,0

large flange-holes

Ø2

[mm]

9,0

web holes (dowels)

Ø3

[mm]

13,0

INSTALLATION MINIMUM DISTANCES

hmin

a4,c

a4,t

a2 as

e a4,t

Tinst

a4,c

hef

secondary beam-timber

self-drilling dowel

smooth dowel

SBD Ø7,5

STA Ø12

dowel-dowel

a2 [mm]

≥3d

≥ 23

≥ 36

dowel-top of beam

a4,t [mm]

≥4d

≥ 30

≥ 48

dowel-bottom of beam

a4,c [mm]

≥3d

≥ 23

≥ 36

dowel-bracket edge

as [mm] ≥ 1,2 d0(1)

≥ 10

≥ 16

dowel-main beam

e [mm]

Anker nail

screw

LBA Ø4

LBS Ø5

≥ 20

≥ 25

chemical anchor

screw anchor

VIN FIX-PRO Ø8

SKR-E Ø10

(1) Hole diameter.

main beam-timber first connector-top of beam

a4,c [mm]

≥5d

main beam-concrete minimum support thickness

hmin

[mm]

hef + 30 ≥ 100

110

concrete hole diameter

[mm]

tightening torque

Tinst

[Nm]

hef = eﬀective anchoring depth in concrete.

CONCEALED BEAM JOINTS | ALUMIDI | 29

APPLICATION EXAMPLES Flat

Fax

ASSEMBLY 01

ALUMIDI WITHOUT HOLES 04

ALUMIDI WITHOUT HOLES WITH UPPER COUNTERSINK 04

ALUMIDI WITH HOLES 04

30 | ALUMIDI | CONCEALED BEAM JOINTS

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Fv FULL NAILING bJ

H hJ

ALUMIDI with SBD self-drilling dowels SECONDARY BEAM ALUMIDI H(1) [mm]

bJ [mm]

hJ [mm]

SBD dowels Ø7,5(2) [pcs Ø x L]

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS

LBA nails Ø4 x 60 [pcs]

[kN]

LBS screws Ø5 x 60 [pcs]

Rv,k

Rv,k [kN]

120

3 - Ø7,5 x 115

10,9

13,4

120

160

4 - Ø7,5 x 115

19,7

24,6

160

120

200

5 - Ø7,5 x 115

29,6

35,3

200

120

240

7 - Ø7,5 x 115

42,5

51,6

240

120

280

9 - Ø7,5 x 115

54,6

66,5

280

140

320

10 - Ø7,5 x 135

71,8

85,0

320

140

360

11 - Ø7,5 x 135

84,9

99,9

360

160

400

12 - Ø7,5 x 155

103,6

119,9

400

160

440

13 - Ø7,5 x 155

116,3

130,7

440

160

480

14 - Ø7,5 x 155

134,5

145,6

ALUMIDI with STA dowels SECONDARY BEAM ALUMIDI

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS LBS screws

STA dowels

LBA nails

H(1)

Ø12(3)

Ø4 x 60

[mm]

[pcs Ø x L]

[pcs]

Rv,k [kN]

Ø5 x 60 [pcs]

Rv,k [kN]

120

160

3 - Ø12 x 120

23,0

25,8

160

120

200

4 - Ø12 x 120

34,5

40,6

200

120

240

5 - Ø12 x 120

46,5

54,8

240

120

280

6 - Ø12 x 120

60,9

68,4

280

140

320

7 - Ø12 x 140

77,2

87,0

320

140

360

8 - Ø12 x 140

93,2

102,4

360

160

400

9 - Ø12 x 160

114,3

124,7

400

160

440

10 - Ø12 x 160

127,3

141,0

440

160

480

11 - Ø12 x 160

144,6

154,9

CONCEALED BEAM JOINTS | ALUMIDI | 31

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Fv PARTIAL NAILING(4) bJ

ALUMIDI with SBD self-drilling dowels SECONDARY BEAM

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS

SBD dowels

LBA nails

LBS screws

Ø4 x 60

ALUMIDI H(1)

Ø7,5(2)

[mm]

[pcs Ø x L]

[pcs]

Rv,k

Ø5 x 60

[kN]

[pcs]

Rv,k [kN]

120

3 - Ø7,5 x 115

9,0

11,2

120

160

4 - Ø7,5 x 115

15,0

18,6

160

120

200

5 - Ø7,5 x 115

24,7

25,2

200

120

240

6 - Ø7,5 x 115

31,0

35,2

240

120

280

7 - Ø7,5 x 115

38,0

45,5

280

140

320

8 - Ø7,5 x 135

47,6

54,8

320

140

360

9 - Ø7,5 x 135

55,0

64,8

360

160

400

10 - Ø7,5 x 155

66,2

75,2

400

160

440

11 - Ø7,5 x 155

74,9

84,4

440

160

480

12 - Ø7,5 x 155

83,2

95,3

ALUMIDI with STA dowels SECONDARY BEAM ALUMIDI

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS LBS screws

STA dowels

LBA nails

H(1)

Ø12(3)

Ø4 x 60

[mm]

[pcs Ø x L]

[pcs]

[kN]

[pcs]

[kN]

120

160

3 - Ø12 x 120

18,2

21,4

160

120

200

4 - Ø12 x 120

26,4

30,9

200

120

240

5 - Ø12 x 120

34,8

39,7

Rv,k

Ø5 x 60

Rv,k

240

120

280

6 - Ø12 x 120

44,0

48,5

280

140

320

7 - Ø12 x 140

54,0

63,5

320

140

360

8 - Ø12 x 140

64,2

73,2

360

160

400

9 - Ø12 x 160

80,2

83,0

400

160

440

10 - Ø12 x 160

89,4

92,7

440

160

480

11 - Ø12 x 160

98,7

102,5

NOTES: TIMBER-TO-TIMBER | Fv (1)

The bracket with height H is available pre-drilled in the ALUMIDI versions without holes, ALUMIDI with holes and ALUMIDI with countersink (codes on page 28) or can be obtained from the ALUMIDI2200 rod.

(2)

SBD self-drilling dowels Ø7,5: My,k = 42000 Nmm.

(3)

STA smooth dowels Ø12: My,k = 69100 Nmm.

32 | ALUMIDI | CONCEALED BEAM JOINTS

(4)

Partial nailing is necessary for beam-column joints in order to observe minimum fastener spacings; it can be applied also for beam-beam joints. Partial nailing is performed by nailing each column alternately as shown in the picture.

General calculation principles see page 36.

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Flat

Flat

H hJ

ALUMIDI with SBD self drilling dowels or STA dowels SECONDARY BEAM(1)

MAIN BEAM(2)

ALUMIDI

LBA nails / LBS screws

Rlat,k,alu

Rlat,k,beam(3)

[pcs]

[kN]

≥ 10

3,6

9,0 12,0

Ø4 x 60 / Ø5 x 60

[mm]

120

160

≥ 14

5,4

160

120

200

≥ 18

7,2

15,0

200

120

240

≥ 22

9,1

18,0

240

120

280

≥ 26

10,9

21,0

280

140

320

≥ 30

12,7

28,1

320

140

360

≥ 34

14,5

31,6

360

160

400

≥ 38

16,3

40,1

400

160

440

≥ 42

18,1

44,1

440

160

480

≥ 46

19,9

48,1

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Fax

Fax

H hJ

ALUMIDI with SBD self-drilling dowels SECONDARY BEAM

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS

SBD dowels

LBA nails

LBS screws

ALUMIDI H [mm]

bJ [mm]

hJ [mm]

Ø7,5 [pcs Ø x L]

Ø4 x 60 [pcs]

120

3 - Ø7,5 x 115

Rax,k [kN]

Ø5 x 60 [pcs]

11,3

Rax,k [kN] 23,9

120

160

4 - Ø7,5 x 115

17,8

37,5

160

120

200

5 - Ø7,5 x 115

24,3

51,2

200

120

240

7 - Ø7,5 x 115

30,8

64,8

240

120

280

9 - Ø7,5 x 115

37,3

78,4

280

140

320

10 - Ø7,5 x 135

43,7

92,1

320

140

360

11 - Ø7,5 x 135

50,2

105,7

360

160

400

12 - Ø7,5 x 155

56,7

119,4

400

160

440

13 - Ø7,5 x 155

63,2

133,0

440

160

480

14 - Ø7,5 x 155

69,7

146,6

NOTES: TIMBER-TO-TIMBER | Flat | Fax (1)

The strength values are valid for both SBD Ø7,5 self-drilling dowels and STA Ø12 dowels.

(2)

The strength values are valid for both LBA Ø4 nails and for LBS Ø5 screws.

(3)

Glulam GL24h.

General calculation principles see page 36.

CONCEALED BEAM JOINTS | ALUMIDI | 33

STATIC VALUES | TIMBER-TO-CONCRETE JOINT | Fv SCREW ANCHOR bJ

H hJ

ALUMIDI with SBD self-drilling dowels SECONDARY BEAM TIMBER ALUMIDI

MAIN BEAM UNCRACKED CONCRETE

SBD dowels

H(1)

[mm]

Ø7,5(2)

[mm]

[pcs Ø x L]

SKR-E anchor Rv,k timber

Ø10 x 80(4)

Rv,d concrete

[kN]

[pcs]

[kN]

120

2 - Ø7,5 x 115

16,6

6,1

120

160

3 - Ø7,5 x 115

24,9

10,2

160

120

200

4 - Ø7,5 x 115

33,2

12,9

200

120

240

5 - Ø7,5 x 115

41,6

17,4

240

120

280

6 - Ø7,5 x 115

49,9

19,8

280

140

320

6 - Ø7,5 x 135

55,1

24,3

320

140

360

7 - Ø7,5 x 135

64,3

26,5

360

160

400

7 - Ø7,5 x 155

71,1

31,1

400

160

440

8 - Ø7,5 x 155

81,2

33,1

440

160

480

9 - Ø7,5 x 155

91,4

38,8

ALUMIDI with STA dowels SECONDARY BEAM TIMBER ALUMIDI

MAIN BEAM UNCRACKED CONCRETE

STA dowels

H(1)

[mm]

Ø12(3)

[mm]

[pcs Ø x L]

SKR-E anchor Rv,k timber

Ø10 x 80(4)

Rv,d concrete

[kN]

[pcs]

[kN]

120

160

3 - Ø12 x 120

35,5

10,2

160

120

200

4 - Ø12 x 120

47,3

12,9

200

120

240

5 - Ø12 x 120

59,1

17,4

240

120

280

6 - Ø12 x 120

70,9

19,8

280

140

320

7 - Ø12 x 140

91,0

24,3

320

140

360

8 - Ø12 x 140

104,0

26,5

360

160

400

9 - Ø12 x 160

128,4

31,1

400

160

440

10 - Ø12 x 160

142,7

33,1

440

160

480

11 - Ø12 x 160

157,0

38,8

34 | ALUMIDI | CONCEALED BEAM JOINTS

STATIC VALUES | TIMBER-TO-CONCRETE JOINT | Fv CHEMICAL ANCHOR bJ

H hJ

ALUMIDI with SBD self-drilling dowels SECONDARY BEAM TIMBER ALUMIDI

MAIN BEAM UNCRACKED CONCRETE

SBD dowels

VIN-FIX PRO anchor

H(1)

Ø7,5(2)

Rv,k timber

Ø8 x 110(5)

Rv,d concrete

[mm]

[pcs Ø x L]

[kN]

[pcs]

[kN]

120

3 - Ø7,5 x 115

24,9

8,8

120

160

4 - Ø7,5 x 115

33,2

15,4

160

120

200

5 - Ø7,5 x 115

41,6

22,1

200

120

240

7 - Ø7,5 x 115

58,2

30,7

240

120

280

8 - Ø7,5 x 115

66,5

37,0

280

140

320

10 - Ø7,5 x 135

91,9

48,7

320

140

360

11 - Ø7,5 x 135

101,1

55,6

360

160

400

12 - Ø7,5 x 155

121,9

64,4

400

160

440

13 - Ø7,5 x 155

132,0

66,4

440

160

480

14 - Ø7,5 x 155

142,2

80,0

ALUMIDI with STA dowels SECONDARY BEAM TIMBER ALUMIDI

MAIN BEAM UNCRACKED CONCRETE

STA dowels

H(1)

[mm]

Ø12(3)

[mm]

[pcs Ø x L]

VIN-FIX PRO anchor Rv,k timber

Ø8 x 110(5)

Rv,d concrete

[kN]

[pcs]

[kN]

120

160

3 - Ø12 x 120

35,5

15,4

160

120

200

4 - Ø12 x 120

47,3

22,1

200

120

240

5 - Ø12 x 120

59,1

30,7

240

120

280

6 - Ø12 x 120

70,9

37,0

280

140

320

7 - Ø12 x 140

91,0

48,7

320

140

360

8 - Ø12 x 140

104,0

55,6

360

160

400

9 - Ø12 x 160

128,4

64,4

400

160

440

10 - Ø12 x 160

142,7

66,4

440

160

480

11 - Ø12 x 160

157,0

80,0

NOTES: TIMBER-TO-CONCRETE (1)

(2)

SBD self-drilling dowels Ø7,5: My,k = 42000 Nmm.

(3)

STA smooth dowels Ø12: My,k = 69100 Nmm.

(4)

Screw anchor SKR-E according to ETA 19/0100. Install the anchors two at a time, starting from the top, dowelling alternate rows.

(5)

Chemical anchor VIN-FIX PRO with threaded rods (type INA) of minimum strength grade equal to 5.8. with h ef = 93 mm. Install the anchors two at a time, starting from the top, dowelling alternate rows.

General calculation principles see page 36.

CONCEALED BEAM JOINTS | ALUMIDI | 35

GENERAL PRINCIPLES:

STATIC VALUES | Flat | Fax

• Resistance values for the fastening system are valid for the calculation examples shown in the table.

TIMBER-TO-TIMBER

• The calculation process used a timber characteristic density of ρ k = 385 kg/m3 and C25/30 concrete with a thin reinforcing layer, where edge-distance is not a limiting factor. • The coefficients kmod and yM should be taken according to the current regulations used for the calculation. • Dimensioning and verification of timber and concrete elements must be carried out separately. • In case of combined loading the following verification shall be satisfied:

Fv,d Rv,d

Flat,d Rlat,d

Fax,d Rax,d

≥ 1

STATIC VALUES | F v TIMBER-TO-TIMBER • Characteristic values are consistent with EN 1995-1-1, in accordance with ETA-09/0361 and evaluated with Rothoblaas experimental method. • The design values are obtained from the characteristic values as follows:

R k Rd = k mod γM • In some cases the connection shear strength Rv,k is notably large and may be higher than the secondary beam strength. Particular attention should be paid to the shear check of the reduced timber cross-section in correspondence with the bracket location.

• Characteristic values are consistent with EN 1995-1-1 and in accordance with ETA-09/0361. • The design values are obtained from the characteristic values as follows:

Rlat,d = min Rlat,d = min

Rlat,k,alu Rlat,k,alu γM,alu γM,alu k Rlat,k,beam mod Rlat,k,beam kmod γM,T γM,T

kmod R Rax,d = Rax,k γM kmod Rax,d = ax,k γM

with yM,T partial coefficient of the timber.

STATIC VALUES | F v TIMBER-TO-CONCRETE • Characteristic values are consistent with EN 1995-1-1 and in accordance with ETA-09/0361. The design values of the anchors for concrete are calculated in accordance with the respective European Technical Assessments. Design resistance values can be obtained from the tabled values as follows:

Rd = min

Rk, timber kmod γM Rd, concrete

For different calculation methods, the MyProject software is available free of charge (www.rothoblaas.com).

• The analysis of various configurations is possible by varying number and type of fasteners, inclination, dimensions and material of the structural elements to maximize the mechanical strength. • Possibility of using two different methods of calculation (according to ETA 09/0361 and experimental model). • Wide and diversified variety of ALUMINI, ALUMIDI and ALUMAXI brackets able to satisfy different static requirements.

36 | ALUMIDI | CONCEALED BEAM JOINTS

LABORATORY TESTING EXPERIMENTAL INVESTIGATION A comprehensive experimental campaign aimed at defining the real behaviour of the ALU brackets was carried out in collaboration the University of Trento. A numerical model has then been proposed and validated on the experimental results (Rothoblaas experimental method).

RESEARCH AND DEVELOPMENT Experimental investigation – Materials and Structures Tests Laboratory (Faculty of Engineering, Trento).

Tests on specimens with reduced dimensions (timber-to-timber and timber-to-concrete).

Tests on full-scale specimens (main-secondary beam connection).

NUMERICAL MODELING Investigation on the plastic deformation history of anchors and ALU brackets through finite element analysis.

Solid model of ALU bracket on concrete

Mises stress history on anchors and ALU bracket

Comparison between undeformed and deformed shape at the end of the test

CONCEALED BEAM JOINTS | ALUMIDI | 37

ALUMAXI

ETA 09/0361

CONCEALED BRACKET WITH AND WITHOUT HOLES SUPERIOR STRENGTH Standard connection system developed to guarantee higher values of design strength. All values are calculated and certified.

STEEL-ALUMINUM EN AW-6005A high strength aluminium alloy bracket, obtained by extrusion and therefore weld-free.

FAST FASTENING Certified strengths calculated in all directions: vertical, horizontal and axial. Certified fastening with LBS screws and SBD self-drilling dowels.

CHARACTERISTICS FOCUS

concealed joints

TIMBER SECTIONS from 160 x 432 mm to 280 x 1200 mm STRENGTH

Rv,k up to 345 kN

FASTENERS

LBA, LBS, SBD, STA, VIN-FIX PRO

VIDEO Scan the QR Code and watch the video on our YouTube channel

MATERIAL Aluminium alloy three dimensional perforated plate.

FIELDS OF USE Timber-to-timber and timber-to-concrete shear joints, both perpendicular and inclined • solid timber and glulam • CLT, LVL • timber based panels

38 | ALUMAXI | CONCEALED BEAM JOINTS

FIRE RESISTANCE The low weight of the steel - aluminium alloy facilitates easy transportation and on-site movements, while guaranteeing a very high strength. Being a concealed joint, it satisfies the fire safety requirements.

LARGE SCALE STRUCTURES Ideal for joints between oversize beams or when high strength is required. The version without holes provides free choice when positioning the dowels.

CONCEALED BEAM JOINTS | ALUMAXI | 39

CODES AND DIMENSIONS ALUMAXI WITH HOLES CODE

type

ALUMAXI384L

with holes

ALUMAXI512L ALUMAXI640L ALUMAXI768L ALUMAXI2176L

pcs

[mm] 384

with holes

512

with holes

640

with holes

768

with holes

2176

pcs

ALUMAXI WITHOUT HOLES CODE

type

ALUMAXI2176

without holes

[mm] 2176

LBS CODE

pcs

[mm]

LBS760

TX30

100

LBS780

TX30

100

LBS7100

100

TX30

100

MATERIAL AND DURABILITY

d1 L

EXTERNAL LOADS

ALUMAXI: EN AW-6005A aluminium alloy. To be used in service classes 1 and 2 (EN 1995-1-1).

FIELDS OF USE • Timber-to-timber, timber-to-concrete and timber-to-steel joints • Secondary beam on main beam or on column • Perpendicular and inclined joints

Flat Fup

Fax

ADDITIONAL PRODUCTS - FASTENING type

description

support

page

LBA

Anker nail

548

LBS

screw for plates

552

SBD

self-drilling dowel

7,5

STA

smooth dowel

KOS

bolt

M16

526

VIN-FIX PRO

chemical anchor

M16

514

EPO-FIX PLUS

chemical anchor

M16

517

[mm]

40 | ALUMAXI | CONCEALED BEAM JOINTS

GEOMETRY ALUMAXI with holes

ALUMAXI without holes

LB LA

139

33 32

Ø3

Ø2 Ø1

32 s1

25,5 79 25,5 LA

ALUMAXI s1

[mm]

web thickness

[mm]

wing width

[mm]

130

web length

[mm]

172

small flange-holes

Ø1

[mm]

7,5

large flange-holes

Ø2

[mm]

17,0

web holes (dowels)

Ø3

[mm]

17,0

flange thickness

INSTALLATION MINIMUM DISTANCES hmin

e a4,c

a4,t

Tinst as

a4,t

a4,c

hef

secondary beam-timber

self-drilling dowel

smooth dowel

SBD Ø7,5

STA Ø16

dowel-dowel

a2 [mm]

≥3d

≥ 23

≥ 48

dowel-top of beam

a4,t [mm]

≥4d

≥ 30

≥ 64

dowel-bottom of beam

a4,c [mm]

≥3d

≥ 23

≥ 48

dowel-bracket edge

as [mm] ≥ 1,2 d0(1)

≥ 10

≥ 21

dowel-dowel

a1(2) [mm]

dowel-main beam

e [mm]

≥3d

≥ 23

92 ÷ 139

139

(1) Hole diameter. (2) Spacing between dowels parallel to the grain for force-fibre angle α = 90° for application with SBD.

main beam-timber first connector-top of beam

a4,c

[mm]

≥5d

Anker nail

screw

LBA Ø6

LBS Ø7

≥ 30

≥ 35 chemical anchor

main beam-concrete

VIN-FIX PRO Ø16 minimum support thickness

hmin

[mm]

concrete hole diameter

[mm]

tightening torque

Tinst

[Nm]

hef + 30 ≥ 100

hef = eﬀective anchoring depth in concrete

CONCEALED BEAM JOINTS | ALUMAXI | 41

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Fv FULL NAILING Fv

H hJ

STA Ø16

SBD Ø7,5

ALUMAXI with STA dowels SECONDARY BEAM

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS

STA dowels

LBA nails

LBS screws

Ø16(2)

Ø6 x 80

ALUMAXI

Rv,k

H(1)

[mm]

[pcs Ø x L]

[pcs]

[kN]

[pcs]

[kN]

384

160

432

6 - Ø16 x 160

122,8

130,3

448

160

496

7 - Ø16 x 160

152,0

512

160

560

8 - Ø16 x 160

173,8

Ø7 x 80

576

160

624

9 - Ø16 x 160

195,5

640

200

688

10 - Ø16 x 200

246,0

704

200

752

11 - Ø16 x 200

270,6

768

200

816

12 - Ø16 x 200

295,2

832

200

880

13 - Ø16 x 200

104

319,8

104

319,8

896

200

944

14 - Ø16 x 200

112

344,4

112

344,4

960

200

1008

15 - Ø16 x 200

120

369,0

120

369,0

ALUMAXI with SBD self-drilling dowels SECONDARY BEAM

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS

SBD dowels

LBA nails

LBS screws

Ø7,5(3)

Ø6 x 80

ALUMAXI

Rv,k

H(1)

[mm]

[pcs Ø x L]

[pcs]

[kN]

[pcs]

[kN]

384

160

432

12 - Ø7,5 x 155

121,0

448

160

496

14 - Ø7,5 x 155

141,2

512

160

560

16 - Ø7,5 x 155

161,3

Ø7 x 80

576

160

624

18 - Ø7,5 x 155

181,5

640

200

688

20 - Ø7,5 x 195

230,7

704

200

752

22 - Ø7,5 x 195

253,8

768

200

816

24 - Ø7,5 x 195

276,9

832

200

880

26 - Ø7,5 x 195

104

299,9

104

299,9

896

200

944

28 - Ø7,5 x 195

112

323,0

112

323,0

960

200

1008

30 - Ø7,5 x 195

120

346,1

120

346,1

42 | ALUMAXI | CONCEALED BEAM JOINTS

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Fv PARTIAL NAILING(4) Fv

H hJ

STA Ø16

SBD Ø7,5

ALUMAXI with STA dowels SECONDARY BEAM

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS

STA dowels

LBA nails

LBS screws

Ø16(2)

Ø6 x 80

ALUMAXI

Rv,k

H(1)

[mm]

[pcs Ø x L]

[pcs]

[kN]

[pcs]

[kN]

384

160

432

6 - Ø16 x 160

61,4

83,6

448

160

496

7 - Ø16 x 160

80,0

103,5

512

160

560

8 - Ø16 x 160

99,7

123,3

Ø7 x 80

576

160

624

9 - Ø16 x 160

120,2

143,1

640

200

688

10 - Ø16 x 200

141,3

162,7

704

200

752

11 - Ø16 x 200

162,7

182,2

768

200

816

12 - Ø16 x 200

184,3

201,5

832

200

880

13 - Ø16 x 200

206,1

220,8

896

200

944

14 - Ø16 x 200

227,8

239,9

960

200

1008

15 - Ø16 x 200

249,6

258,9

ALUMAXI with SBD self-drilling dowels SECONDARY BEAM

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS

SBD dowels

LBA nails

LBS screws

Ø7,5(3)

Ø6 x 80

ALUMAXI

Rv,k

H(1)

[mm]

[pcs Ø x L]

[pcs]

[kN]

[pcs]

[kN]

384

160

432

8 - Ø7,5 x 155

61,4

80,7

448

160

496

10 - Ø7,5 x 155

80,0

100,8

512

160

560

12 - Ø7,5 x 155

99,7

121,0

576

160

624

14 - Ø7,5 x 155

120,2

141,2

640

200

688

16 - Ø7,5 x 195

141,3

162,7

704

200

752

18 - Ø7,5 x 195

162,7

182,2

Ø7 x 80

768

200

816

20 - Ø7,5 x 195

184,3

201,5

832

200

880

22 - Ø7,5 x 195

206,1

220,8

896

200

944

24 - Ø7,5 x 195

227,8

239,9

960

200

1008

26 - Ø7,5 x 195

249,6

258,9

NOTES: TIMBER-TO-TIMBER | Fv (1)

The bracket with height H is available pre-cut in the ALUMAXI versions with holes (codes on page 40) or can be obtained from the rod ALUMAXI2176 or ALUMAXI2176L rod.

(2)

STA smooth dowels Ø16: My,k = 191000 Nmm

(3)

SBD self-drilling dowels Ø7,5: My,k = 42000 Nmm.

(4)

CONCEALED BEAM JOINTS | ALUMAXI | 43

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Flat

Flat

H hJ

ALUMAXI with SBD self drilling dowels and STA dowels SECONDARY BEAM(1)

MAIN BEAM(2)

ALUMAXI

LBA nails / LBS screws

Rlat,k,alu

Rlat,k,beam(3)

Ø6 x 80 / Ø7 x 80

[mm]

[pcs]

[kN]

384

160

432

≥ 24

31,2

34,3

448

160

496

≥ 28

36,4

39,4

512

160

560

≥ 32

41,6

44,4

576

160

624

≥ 36

46,8

49,5

640

200

688

≥ 40

52,0

69,1

704

200

752

≥ 44

57,2

75,6

768

200

816

≥ 48

62,4

82,0 88,4

832

200

880

≥ 52

67,6

896

200

944

≥ 56

72,8

94,9

960

200

1008

≥ 60

78,0

101,3

STATIC VALUES | TIMBER-TO-TIMBER JOINT | Fax

Fax

H hJ

ALUMAXI with STA dowels SECONDARY BEAM

MAIN BEAM FASTENING THROUGH NAILS

FASTENING THROUGH SCREWS

STA dowels

LBA nails

LBS screws

Ø16

Ø6 x 80

ALUMAXI

Rax,k

H(1)

[mm]

[pcs Ø x L]

[pcs]

[kN]

[pcs]

[kN]

384

160

432

6 - Ø16 x 160

79,2

144,3

448

160

496

7 - Ø16 x 160

92,4

168,3

512

160

560

8 - Ø16 x 160

105,6

192,3

576

160

624

9 - Ø16 x 160

118,8

216,4

640

200

688

10 - Ø16 x 200

132,0

240,4

704

200

752

11 - Ø16 x 200

145,2

264,5

768

200

816

12 - Ø16 x 200

158,4

288,5

Ø7 x 80

832

200

880

13 - Ø16 x 200

104

171,6

104

312,5

896

200

944

14 - Ø16 x 200

112

184,8

112

336,6

960

200

1008

15 - Ø16 x 200

120

198,0

120

360,6

NOTES: TIMBER-TO-TIMBER | Flat | Fax (1)

The strength values are valid for both STA Ø16 dowels and for SBD Ø7,5 self-drilling dowels.

(2)

The strength values are valid for both LBA Ø6 nails and for LBS Ø7 screws.

(3)

Glulam GL24h.

44 | ALUMAXI | CONCEALED BEAM JOINTS

General calculation principles see page 46.

STATIC VALUES | TIMBER-TO-CONCRETE JOINT | Fv CHEMICAL ANCHOR bJ

H hJ

ALUMAXI with STA dowels SECONDARY BEAM TIMBER ALUMAXI

MAIN BEAM UNCRACKED CONCRETE

STA dowels

VIN-FIX PRO anchor

H(1) [mm]

bJ [mm]

hJ [mm]

Ø16(2) [pcs Ø x L]

Rv,k timber [kN]

Ø16 x 160(4) [pcs]

Rv,d concrete [kN]

384

160

432

6 - Ø16 x 160

130,3

89,3

448

160

496

7 - Ø16 x 160

152,0

112,4

512

160

560

8 - Ø16 x 160

173,8

126,4

576

160

624

9 - Ø16 x 160

195,5

149,5

640

200

688

10 - Ø16 x 200

246,0

163,8

704

200

752

11 - Ø16 x 200

270,6

191,4

768

200

816

12 - Ø16 x 200

295,2

197,2

832

200

880

13 - Ø16 x 200

319,8

226,2

896

200

944

14 - Ø16 x 200

344,4

239,7

960

200

1008

15 - Ø16 x 200

369,0

258,9

H hJ

ALUMAXI with SBD self-drilling dowels SECONDARY BEAM TIMBER ALUMAXI

MAIN BEAM UNCRACKED CONCRETE

SBD dowels

VIN-FIX PRO anchor

H(1) [mm]

bJ [mm]

hJ [mm]

Ø7,5(3) [pcs Ø x L]

Rv,k timber [kN]

Ø16 x 160(4) [pcs]

Rv,d concrete [kN]

384

160

432

12 - Ø7,5 x 155

121,0

89,3

448

160

496

14 - Ø7,5 x 155

141,2

112,4

512

160

560

16 - Ø7,5 x 155

161,3

126,4

576

160

624

18 - Ø7,5 x 155

181,5

149,5

640

200

688

20 - Ø7,5 x 195

230,7

163,8

704

200

752

22 - Ø7,5 x 195

253,8

191,4

768

200

816

24 - Ø7,5 x 195

276,9

197,2

832

200

880

26 - Ø7,5 x 195

299,9

226,2

896

200

944

28 - Ø7,5 x 195

323,0

239,7

960

200

1008

30 - Ø7,5 x 195

346,1

258,9

NOTES: TIMBER-TO-CONCRETE (1)

The bracket with height H is available pre-cut in the ALUMAXI versions with holes (codes on page 40) or can be obtained from the rod ALUMAXI2176 or ALUMAXI2176L rod.

(2)

STA smooth dowels Ø16: My,k = 191000 Nmm.

(3)

SBD self-drilling dowels Ø7,5: My,k = 42000 Nmm.

(4)

Chemical anchor VIN-FIX PRO with threaded rods (type INA) of minimum strength grade equal to 5.8. with hef = 128 mm. Install the anchors two at a time, starting from the top, dowelling alternate rows. General calculation principles see page 46.

CONCEALED BEAM JOINTS | ALUMAXI | 45

GENERAL PRINCIPLES:

STATIC VALUES | Flat | Fax

• Resistance values for the fastening system are valid for the calculation examples shown in the table. For different calculation methods, the myProject software is available free of charge (www.rothoblaas.com). • The calculation process used a timber characteristic density of ρ k = 385 kg/m3 and C25/30 concrete with a thin reinforcing layer, where edge-distance is not a limiting factor. • The coefficients kmod and yM should be taken according to the current regulations used for the calculation. • Dimensioning and verification of timber and concrete elements must be carried out separately. • In case of combined loading the following verification shall be satisfied:

Fv,d Rv,d

Flat,d Rlat,d

Fax,d Rax,d

≥ 1

STATIC VALUES | F v TIMBER-TO-TIMBER • Characteristic values are consistent with EN 1995-1-1 and in accordance with ETA-09/0361.

TIMBER-TO-TIMBER • Characteristic values are consistent with EN 1995-1-1 and in accordance with ETA-09/0361. • The design values are obtained from the characteristic values as follows:

Rlat,d = min Rlat,d = min

kmod R Rax,d = Rax,k γM kmod Rax,d = ax,k γM

with yM,T partial coefficient of the timber.

• The design values are obtained from the characteristic values as follows:

46 | ALUMAXI | CONCEALED BEAM JOINTS

Rlat,k,alu Rlat,k,alu γM,alu γM,alu k Rlat,k,beam mod Rlat,k,beam kmod γM,T γM,T

Rd = min

Rk, timber kmod γM Rd, concrete

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SBD

BIT INCLUDED

EN 14592

SELF-DRILLING DOWEL STEEL AND ALUMINUM Special self-perforating timber-metal tip geometry that reduces the possibility of breakage. The concealed cylindrical head ensures an optimal visual appearance and meets fire-resistance requisites.

INCREASED DIAMETER The diameter of 7,5 mm ensures a shear strength of over 15 % and enables the optimisation of the number of fasteners.

DOUBLE THREAD The thread close to the tip (b1) facilitates screwing. The longer under-head thread (b2) allows quick and precise closing of the joint.

CHARACTERISTICS FOCUS

self-drilling, timber-metal-timber

HEAD

cylindrical, countersunk

DIAMETER

7,5 mm

LENGTH

from 55 to 235 mm

VIDEO Scan the QR Code and watch the video on our YouTube channel

MATERIAL Bright zinc plated carbon steel.

FIELDS OF USE Self-drilling system for concealed timber-tosteel and timber-to-aluminium joints. It can be used with screw guns running at 600-1500 rpm with: • steel S235 ≤ 10,0 mm • steel S275 ≤ 8,0 mm • steel S355 ≤ 6,0 mm • ALUMINI, ALUMIDI and ALUMAXI brackets Service classes 1 and 2. 48 | SBD | CONCEALED BEAM JOINTS

KNEE BEAM Ideal for joining head beams and making continuous beams, restoring shear and moment forces. The small dowel diameter guarantees joints that offer high stiffness.

MOMENT RESISTING JOINT Also certified, tested and calculated for fastening standard Rothoblaas plates such as the TYP X post base.

CONCEALED BEAM JOINTS | SBD | 49

CODES AND DIMENSIONS d1

CODE

[mm]

SBD7555

SBD7575

SBD7595

SBD75115

115

SBD75135

135

SBD75155

155

SBD75175

175

SBD75195

195

SBD75215

215

SBD75235

235

[mm]

7,5 TX40

pcs

d1 b1

b2 L

MATERIAL AND DURABILITY

EXTERNAL LOADS

SBD: bright zinc plated carbon steel To be used in service classes 1 and 2 (EN 1995-1-1).

FIELD OF USE • Timber-steel-timber joints

GEOMETRY AND MECHANICAL CHARACTERISTICS

dk b1

7,5

Nominal diameter

[mm]

Head diameter

[mm]

11,0

Tip length

[mm]

19,0

Effective length

Leff

[mm]

L - 8,0

Characteristic yield moment

My,k

[Nmm]

42000

50 | SBD | CONCEALED BEAM JOINTS

INSTALLATION plate

s single plate

s double plate

[mm]

S235 steel

10,0

8,0

S275 steel

8,0

6,0

S355 steel

6,0

5,0

ALUMINI

6,0

ALUMIDI

6,0

ALUMAXI

10,0

single plate ta ta

tdouble ti plate ta a

Timber-metal plate-timber shear joint Recommended pressure:

≈ 40 kg

Recommended screwing:

≈ 1000 - 1500 rpm (steel plate)

≈ 600 - 1000 rpm (aluminium plate)

MINIMUM DISTANCES FOR CONNECTORS SUBJECTED TO SHEAR STRESS(1)

Load-to-grain angle α = 0°

Load-to-grain angle α = 90°

[mm]

7,5

[mm]

a3,t

[mm]

a3,c

[mm]

a4,t

[mm]

a4,c

[mm]

stressed end -90° < α < 90°

a2 a2 a1 a1

unloaded end 90° < α < 270°

F α

α F a3,t

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

α F α

a4,t

F a4,c

a3,c

NOTES: (1)

The minimum distances are compliant with EN 1995-1-1.

CONCEALED BEAM JOINTS | SBD | 51

TIMBER-TO-STEEL AND ALUMINIUM STATIC VALUES SHEAR Rv,k - 1 INTERNAL PLATE DOWEL HEAD INSERTION DEPTH 0 mm SBD

[mm] 7,5x55

7,5x75

7,5x95 7,5x115 7,5x135 7,5x155 7,5x175 7,5x195 7,5x215 7,5x235

Beam width

[mm]

100

120

140

160

180

200

220

240

Head insertion depth

[mm]

Exterior wood

[mm]

107

117

0°

7,48

9,20

10,18

11,46

12,91

13,69

13,95

30°

6,89

8,59

9,40

10,51

11,77

12,71

13,21

FASTENING

s ta

ta B

Rv,k [kN]

load-to-grain angle

45°

6,41

8,09

8,77

9,72

10,84

11,90

12,53

12,57

60°

6,00

7,67

8,24

9,08

10,07

11,15

11,78

12,02

90°

5,66

7,31

7,79

8,53

9,42

10,40

11,14

11,54

DOWEL HEAD INSERTION DEPTH 15 mm SBD

[mm] 7,5x55

7,5x75

7,5x95 7,5x115 7,5x135 7,5x155 7,5x175 7,5x195 7,5x215 7,5x235

Beam width

[mm]

100

120

140

160

180

200

220

240

Head insertion depth

[mm]

Exterior wood

[mm]

107

117

0°

8,47

9,10

10,13

11,43

12,89

13,95

30°

7,79

8,49

9,35

10,48

11,75

13,06

13,21

FASTENING

s ta

Rv,k [kN]

load-to-grain angle

45°

7,25

8,00

8,72

9,70

10,82

12,04

12,57

60°

6,67

7,58

8,19

9,05

10,05

11,14

12,02

90°

6,14

7,23

7,74

8,50

9,40

10,39

11,40

11,54

CORRECTIVE COEFFICIENT kF FOR DIFFERENT DENSITIES ρk Strength class ρk

C24

[kg/m3]

GL22h

C30

GL24h

C40 / GL32c

GL28h

D24

D30

350

370

380

385

400

425

485

530

0,91

0,96

0,99

1,00

1,02

1,05

1,12

1,17

For different densities ρk the wood-side design strength is calculated as: R ' V,d = R V,d · kF.

EFFECTIVE NUMBER OF DOWELS nef FOR α = 0° a1 [mm]

nef

n. SBD

100

120

140

1,49

1,58

1,65

1,72

2,15

2,27

2,38

2,47

1,78

1,83

2,56

2,63

1,88

1,97

2,00

2,70

2,83

2,94

2,79

2,95

3,08

3,21

3,31

3,41

3,50

3,67

3,81

3,41

3,60

3,77

3,92

4,05

4,17

4,28

4,48

4,66

4,01

4,24

4,44

4,62

4,77

4,92

5,05

5,28

5,49

4,61

4,88

5,10

5,30

5,48

5,65

5,80

6,07

6,31

In the case of multiple dowels placed parallel to the fibres, the effective number must be taken into account: R ' V,d = R V,d · nef.

52 | SBD | CONCEALED BEAM JOINTS

TIMBER-TO-STEEL AND ALUMINIUM STATIC VALUES SHEAR Rv,k - 2 INTERNAL PLATES DOWEL HEAD INSERTION DEPTH 0 mm SBD

[mm] 7,5x55

Beam width

[mm]

140

160

180

200

220

240

Head insertion depth

[mm]

Exterior wood

[mm]

Interior wood

[mm]

0°

21,03

23,07 24,25 25,28

26,71

27,41

30°

19,19

21,17

22,71

23,60 24,85

25,72

45°

17,69

19,62

21,08

22,19 23,30 24,25

60°

16,45

18,32

19,62

20,75

90°

15,40

17,09

18,40 19,40 20,28 21,48

FASTENING

s ta

s ti

Rv,k [kN]

load-to-grain angle

7,5x75

7,5x95 7,5x115 7,5x135 7,5x155 7,5x175 7,5x195 7,5x215 7,5x235

21,73

22,84

DOWEL HEAD INSERTION DEPTH 10 mm SBD

[mm] 7,5x55

Beam width

[mm]

140

160

180

200

220

240

Head insertion depth

[mm]

Exterior wood

[mm]

Interior wood

[mm]

0°

19,31

22,20 23,23 24,02 25,28 26,42

30°

17,49

20,25 21,86 22,52 23,60 24,59

45°

16,01

18,65 20,36 21,26

22,19

23,07

60°

14,78

17,32

19,02

19,94

20,75

21,78

90°

13,75

16,07

17,88

18,68 19,40 20,52

FASTENING

s ta

s ti

Rv,k [kN]

load-to-grain angle

7,5x75

7,5x95 7,5x115 7,5x135 7,5x155 7,5x175 7,5x195 7,5x215 7,5x235

GENERAL PRINCIPLES: • Characteristic values according to EN 1995-1-1. • The design values are obtained from the characteristic values as follows:

R k Rd = k mod γM

• The values provided are calculated using 5 mm thick plates, a 6 mm thick milled cut in the timber and a single SBD dowel. • For the calculation process a timber density ρ k = 385 kg/m3 has been considered. • Sizing and verification of the wooden elements and metal plates must be done separately.

The coefficients γ M and kmod should be taken according to the current regulations used for the calculation.

CONCEALED BEAM JOINTS | SBD | 53

STA

EN 14592

SMOOTH DOWEL STEEL S355 steel grade to provide higher shear strength to the standard sizes used in structural design (Ø16 and Ø20).

GEOMETRY Tapered end for an easy insertion of the fastener into the pre drilled timber element. Available in 1,0 m long version.

SPECIAL VERSION Available upon request in high bond steel and geometry designed to avoid pull-out when used in seismic areas.

CHARACTERISTICS FOCUS

concealed joints

DIAMETER

from 8,0 to 20,0 mm

LENGTH

from 60 to 500 mm

STEEL

S235 (Ø8-Ø12) - S355 (Ø16-Ø20)

MATERIAL Bright zinc plated carbon steel.

FIELDS OF USE Timber-to-timber and steel to timber shear connections • solid timber and glulam • CLT, LVL • timber based panels

54 | STA | CONCEALED BEAM JOINTS

LARGE SCALE STRUCTURES Calculation accuracy: CE marking guarantees the usage suitability. Improved bond version ideal in seismic areas.

TIMBER-TO-METAL Ideal for being used with ALU brackets in realizing concealed joints. When used with wood taps it meets the fire safety requirements and provides a rewarding aesthetic appearance.

CONCEALED BEAM JOINTS | STA | 55

CODES AND DIMENSIONS d1

CODE

[mm]

steel

pcs

[mm]

CODE

[mm]

steel

pcs

[mm]

STA860B

S235

200

STA16200B

200

S355

STA880B

S235

200

STA16220B

220

S355

STA8100B

100

S235

200

STA16240B

240

S355

STA8120B

120

S235

200

STA16260B

260

S355

STA8140B

140

S235

200

STA16280B

280

S355

STA1260B

S235

100

STA16300B

300

S355

STA1270B

S235

100

STA16320B

320

S355

STA1280B

S235

100

STA16340B

340

S355

STA1290B

S235

100

STA16360B

360

S355

STA12100B

100

S235

100

STA16380B

380

S355

STA12110B

110

S235

100

STA16400B

400

S355

STA12120B

120

S235

100

STA16420B

420

S355

STA12130B

130

S235

100

STA16500B

500

S355

STA12140B

140

S235

100

STA161000B

1000

S355

STA12150B

150

S235

100

STA20120B

120

S355

STA12160B

160

S235

100

STA20140B

140

S355

STA12170B

170

S235

100

STA20160B

160

S355

STA12180B

180

S235

100

STA20180B

180

S355

STA12200B

200

S235

100

STA20190B

190

S355

STA12220B

220

S235

100

STA20200B

200

S355

STA12240B

240

S235

100

STA20220B

220

S355

STA12260B

260

S235

100

STA20240B

240

S355

STA12280B

280

S235

100

STA20260B

260

S355

STA12320B

320

S235

100

STA20300B

300

S355

STA12340B

340

S235

100

STA20320B

320

S355

STA121000B

1000

S235

STA20360B

360

S355

STA1680B

S355

STA20400B

400

S355

STA16100B

100

S355

STA201000B

1000

S355

STA16110B

110

S355

STA16120B

120

S355

STA16130B

130

S355

STA16140B

140

S355

STA16150B

150

S355

STA16160B

160

S355

STA16170B

170

S355

STA16180B

180

S355

STA16190B

190

S355

Available upon request:high bond steel and shaped to avoid pull-out when used in seismic areas (e.g. STAS16200). Minimum quantity 1000 pieces.

MATERIAL AND DURABILITY STA Ø8-Ø12: S235 bright zinc plated carbon steel. STA Ø16-Ø20: S355 bright zinc plated carbon steel. To be used in service classes 1 and 2 (EN 1995-1-1).

FIELD OF USE • Timber-to-timber joints • Timber-steel-timber joints

56 | STA | CONCEALED BEAM JOINTS

d1 L

EXTERNAL LOADS Fv

GEOMETRY AND MECHANICAL CHARACTERISTICS d1 L

Nominal diameter

[mm]

Length

[mm]

60 ÷ 140

60 ÷ 340

80 ÷ 500

120 ÷ 400

steel Material Characteristic yield moment

S235

S355

fu,k,min

[N/mm2]

360

460

fy,k,min

[N/mm2]

235

355

My,k

[Nmm]

24100

69100

191000

340000

Mechanical parameters according to CE marking, in accordance with EN 14592.

MINIMUM DISTANCES FOR CONNECTORS SUBJECTED TO SHEAR STRESS(1)

Load-to-grain angle α = 0°

Load-to-grain angle α = 90°

[mm]

100

[mm]

a3,t

[mm]

112

140

112

140

a3,c

[mm]

112

140

a4,t

[mm]

a4,c

[mm]

stressed end -90° < α < 90°

a2 a2 a1 a1

unloaded end 90° < α < 270°

F α

α F a3,t

stressed edge 0° < α < 180°

unload edge 180° < α < 360°

α F α

a4,t

F a4,c

a3,c

NOTES: (1)

The minimum distances are compliant with EN 1995-1-1.

CONCEALED BEAM JOINTS | STA | 57

TIMBER-TO-STEEL AND ALUMINIUM STATIC VALUES 1 INTERNAL PLATE - SHEAR Rv,k

ta t B d1

Rvk,0°

Rvk,30°

Rvk,45°

Rvk,60°

Rvk,90°

[mm]

[kN]

13,9

12,9

12,2

11,5

11,0

15,2

13,9

12,9

12,1

11,5

100

17,0

15,4

14,2

13,2

12,4

120

19,1

17,2

15,7

14,6

13.6

140

21,4

19,2

17,5

16,1

14,9

160

22,1

20,7

19,3

17,7

16,4

> 180

22,1

20,7

19,6

18,7

17,8

25,5

23,6

22,2

21,0

19,7

100

26,8

24,6

22,8

21,4

20,2

120

28,7

26,1

24,0

22,4

21,0

140

31,1

28,0

25,6

23,7

22,2

160

33,7

30,2

27,4

25,3

23,5

180

36,5

32,5

29,5

27,0

25,0

200

39,4

35,0

31,6

28,9

26,7

220

107

40,9

37,6

33,9

30,9

28,4

240

117

40,9

38,2

36,0

32,9

30,3

120

39,0

35,5

32,8

30,6

28,9

140

41,2

37,1

34,1

31,6

29,7

160

43,8

39,2

35,8

33,0

30,8

180

46,8

41,6

37,7

34,7

32,2

190

180

46,8

41,6

37,7

34,7

32,2

200

50,0

44,3

39,9

36,5

33,8

220

107

53,3

47,0

42,3

38,6

35,6

240

117

56,8

50,0

44,8

40,7

37,4

GENERAL PRINCIPLES: • Characteristic values according to EN 1995-1-1. • The design values are obtained from the characteristic values as follows:

Rd =

Rk kmod γM

• The coefficients γ M and kmod should be taken according to the current regulations used for the calculation.

58 | STA | CONCEALED BEAM JOINTS

• The values provided are calculated using 5 mm thick plate, a 6 mm thick grooved cut in the timber and a single STA dowel. • For the calculation process a timber density ρ k = 385 kg/m3 has been considered. • Sizing and verification of the timber elements and metal plate must be done separately.

CORRECTIVE COEFFICIENT kF FOR DIFFERENT DENSITIES ρk Strength class ρk

C24

[kg/m3]

GL22h

C30

GL24h

C40 / GL32c

GL28h

D24

D30

350

370

380

385

400

425

485

530

0,91

0,96

0,99

1,00

1,02

1,05

1,12

1,17

For different densities ρk the wood-side design strength is calculated as: R ' V,d = R V,d · kF.

EFFECTIVE NUMBER OF DOWELS nef FOR α = 0° a1 [mm]

nef

n. STA

5∙d

7∙d

10∙d

12∙d

16∙d

18∙d

20∙d

1,47

1,60

1,75

1,83

1,97

2,00

2,12

2,30

2,52

2,63

2,83

2,92

2,99

2,74

2,98

3,26

3,41

3,67

3,78

3,88

3,35

3,65

3,99

4,17

4,48

4,62

4,74

3,95

4,30

4,70

4,92

5,28

5,44

5,59

4,54

4,94

5,40

5,65

6,07

6,25

6,42

In the case of multiple dowels placed parallel to the fibres, the effective number must be taken into account R’v,d = Rv,d · nef. d = nominal dowel diameter

STAS - IMPROVED BOND DOWEL FOR SEISMIC LOADS

d1 L

The knurled dowel is available on request, it anticipates the standard requirement of the new EN 14592 ("FINAL DRAFT FprEN 14592:2019", 04/03/2019), guaranteeing a minimum withdrawal strength of 1 kN, necessary in seismic areas. The knurling also responds to the provision of EC8 aimed at preventing the cylindrical shank elements from coming out from the joints in the seismic zone.

STAS - WITHDRAWAL VALUES

Withdrawal strength [kN]

6 5 4 3 2 1 0

Test number 14592 minimum

M12

M16

M20

“Knurled pins" are the submitted to a utility model.

CONCEALED BEAM JOINTS | STA | 59

LOCK T TIMBER

ETA 19/0831

CONCEALED HOOK TIMBER-TO-TIMBER CONNECTOR PRACTICAL Easy and quick to install, it can be fastened with a single type of screw. Joint that can be easily disassembled, ideal for the construction of temporary structures.

SLENDER STRUCTURES It can also be used concealed with wooden elements having small cross-section. Ideal for structures, gazebos and furnishings.

VERSATILE It provides excellent assembly tolerance. It can be integrated with side locking plates and vertical anti-slip screw.

LOCK T FLOOR

CHARACTERISTICS FOCUS

joints that can be disassembled

TIMBER SECTIONS from 35 x 80 mm to 200 x 440 mm STRENGTH

Rv,k up to 65 kN

FASTENERS

LBS

VIDEO Scan the QR Code and watch the video on our YouTube channel

MATERIAL Aluminium alloy three dimensional perforated plate.

FIELDS OF USE Timber-to-timber shear joint • solid timber and glulam • CLT, LVL

60 | LOCK T | CONCEALED BEAM JOINTS

AESTHETICS Completely concealed joint; satisfies fire safety requirements. Thanks to the assembly with only one type of screw, installation is quick and easy.

CLT FLOORS The rod version is specially designed for fastening CLT panel floors. Innovative joint with exceptional strength values.

CONCEALED BEAM JOINTS | LOCK T | 61

CODES AND DIMENSIONS LOCK T Ø5

LOCKT1880

LOCKT3580

CODE

LOCKT35100

LOCKT35120

LOCKT53120

nscrews - Ø

nLOCKSTOP - type

pcs *

4-Ø5

1 LOCKSTOP5U

8-Ø5

2 LOCKSTOP5

12-Ø5

2 LOCKSTOP5

16-Ø5

4 LOCKSTOP5

[mm]

LOCKT1880

17,5

LOCKT3580

LOCKT35100

100

LOCKT35120

120

LOCKT53120

52,5

120

24-Ø5

Screws and LOCK STOP not included in the package. * number of connector pairs

LOCK STOP Ø5 CODE

[mm]

LOCKSTOP5U

21,5

27,5

LOCKSTOP5

27,5

100

pcs

LOCKSTOP5U for use with LOCKT1880. LOCKSTOP5 for use with other models. The use of LOCK STOP is optional and does not affect structural performance.

[mm]

LBS550

TX20

200

LBS570

TX20

200

MATERIAL AND DURABILITY LOCK T: EN AW-6005A aluminium alloy To be used in service classes 1 and 2 (EN 1995-1-1).

FIELD OF USE • Timber-to-timber joints between solid timber, glulam, LVL and CLT structural elements

62 | LOCK T | CONCEALED BEAM JOINTS

LOCKSTOP5U

LOCKSTOP5

LBS CODE

pcs d1 L

EXTERNAL LOADS Fv

CODES AND DIMENSIONS LOCK T Ø7

H H

LOCKT50135

LOCKT50175

CODE

LOCKT75175

LOCKT75215

LOCKT100215 nLOCKSTOP - type

pcs*

12-Ø7

2 LOCKSTOP7

16-Ø7

4 LOCKSTOP7

24-Ø7

4 LOCKSTOP7

36-Ø7

4 LOCKSTOP7

nscrews - Ø

[mm]

LOCKT50135

135

LOCKT50175

175

LOCKT75175

175

LOCKT75215

215

LOCKT100215

100

215

48-Ø7

Screws and LOCK STOP not included in the package. * number of connector pairs

LOCK T FLOOR Ø7

CODE

LOCKTFLOOR135

[mm]

1200

135

nscrews - Ø

pcs*

64-Ø7

Screws not included in the box. * number of connector pairs

LOCK STOP Ø7

CODE

LOCKSTOP7

[mm]

26,5

pcs

The use of LOCK STOP is optional and does not affect structural performance.

LBS CODE

LBS780

[mm]

pcs d1

TX30

100

CONCEALED BEAM JOINTS | LOCK T | 63

GEOMETRY | LOCK T Ø5

main element

secondary beam

SINGLE CONNECTOR LOCK T CONNECTOR

type

MAIN ELEMENT

SCREWS

SECONDARY BEAM

LBS

column

beam

BxHxs

nH+nj - ØxL

BS,min x HS,min

BH,min x HH,min

[mm]

with pre-drilling hole

without pre-drilling hole

2+2 - Ø5x50

35 x 50

50 x 95

2+2 - Ø5x70

35 x 70

70 x 95

4+4 - Ø5x50

53 x 50

50 x 95

4+4 - Ø5x70

53 x 70

70 x 95

6+6 - Ø5x50

53 x 50

50 x 115

6+6 - Ø5x70

53 x 70

70 x 115

8+8 - Ø5x50

53 x 50

50 x 135

8+8 - Ø5x70

53 x 70

70 x 135

12+12 - Ø5x50

70 x 50

50 x 135

12+12 - Ø5x70

70 x 70

70 x 135

LOCKT1880

17,5 x 80 x 20

LOCKT3580

35 x 80 x 20

LOCKT35100

35 x 100 x 20

LOCKT35120

35 x 120 x 20

LOCKT53120

52,5 x 120 x 20

bJ,min x hj,min [mm] with pre-drilling hole

without pre-drilling hole

35 x 80

43 x 80

53 x 80

61 x 80

53 x 100

61 x 100

53 x 120

61 x 120

70 x 120

78 x 120

COUPLED CONNECTORS LOCK T CONNECTOR

type

MAIN ELEMENT

SCREWS

SECONDARY BEAM

LBS

column

beam

BxHxs

nH+nj - ØxL

BS,min x HS,min

BH,min x HH,min

[mm]

with pre-drilling hole

without pre-drilling hole

12+12 - Ø5 x 50

88 x 50

50 x 115

12+12 - Ø5 x 70

88 x 70

70 x 115

16+16 - Ø5 x 50

88 x 50

50 x 135

16+16 - Ø5 x 70

88 x 70

70 x 135

20+20 - Ø5 x 50

105 x 50

50 x 135

20+20 - Ø5 x 70

105 x 70

70 x 135

LOCKT 35100 + 35100

70 x 100 x 20

LOCKT 35120 +35120

70 x 120 x 20

LOCKT 35120 + 53120

87,5 x 120 x 20

64 | LOCK T | CONCEALED BEAM JOINTS

bJ,min x hj,min [mm] with pre-drilling hole

without pre-drilling hole

88 x 100

96 x 100

88 x 120

96 x 120

105 x 120

113 x 120

INSTALLATION ON BEAM | LOCK T Ø5 MAIN BEAM

SECONDARY BEAM

BF ≥B

B nj

HF ≥H

bj BH

SF = 20 mm

The HF dimension refers to the minimum height of the grooving at constant width. The rounded part must be taken into account when grooving.

INSTALLATION ON COLUMN | LOCK T Ø5 COLUMN

BEAM

c nj

hj nH bj BS

SF = 20 mm

CONNECTOR POSITIONING | LOCK T Ø5 connector

cmin [mm]

LOCKT1880

7,5

LOCKT3580

7,5

LOCKT35100

5,0

LOCKT35120

2,5

LOCKT53120

2,5

For installation on column, respecting the minimum distance of the screw from the unloaded end of the column, requires to lower the connector by a quantity c, compared to the end of the column. This can be achieved either by raising the column with respect to the to the top of the beam (as in the image) or by lowering the connector with respect to the top of the beam by a c amount.

CONCEALED BEAM JOINTS | LOCK T | 65

GEOMETRY | LOCK T Ø7 main element

secondary beam

SINGLE CONNECTOR LOCK T CONNECTOR

type

MAIN ELEMENT

SCREWS

SECONDARY BEAM

LBS

column

beam

BxHxs

nH+nj - ØxL

BS,min x HS,min

BH,min x HH,min

[mm]

bJ,min x hj,min

[mm]

with pre-drilling hole

without pre-drilling hole

with pre-drilling hole

[mm] without pre-drilling hole

LOCKT50135

50 x 135 x 22

6+6 - Ø7x80

74 x 80

80 x 155

74 x 135

80 x 140 (1)

LOCKT50175

50 x 175 x 22

8+8 - Ø7x80

74 x 80

80 x 190

74 x 175

80 x 175

LOCKT75175

75 x 175 x 22

12+12 - Ø7x80

99 x 80

80 x 190

99 x 175

105 x 175

LOCKT75215

75 x 215 x 22

18+18 - Ø7x80

99 x 80

80 x 230

99 x 175

105 x 215

LOCKT100215

100 x 215 x 22

24+24 - Ø7x80

124 x 80

80 x 230

124 x 215

130 x 215

COUPLED CONNECTORS LOCK T CONNECTOR

type

MAIN ELEMENT

SCREWS

SECONDARY BEAM

LBS

column

beam

BxHxs

nH+nj - ØxL

BS,min x HS,min

BH,min x HH,min

[mm]

bJ,min x hj,min

[mm]

with pre-drilling hole

without pre-drilling hole

with pre-drilling hole

[mm] without pre-drilling hole

124 x 80

80 x 155

124 x 135

130 x 140 (1)

LOCKT 50135 + 50135

100 x 135 x 22

LOCKT 50175 + 50175

100 x 175 x 22

16+16 - Ø7x80

124 x 80

80 x 190

124 x 175

130 x 175

LOCKT 50175 + 75175

125 x 175 x 22

20+20 - Ø7x80

149 x 80

80 x 190

149 x 175

155 x 175

LOCKT 75215 + 75215

150 x 215 x 22

36+36 - Ø7x80

174 x 80

80 x 230

174 x 215

180 x 215

LOCKT 75215 + 100215

175 x 215 x 22

42+42 - Ø7x80

199 x 80

80 x 230

199 x 215

205 x 215

12+12 - Ø7x80

NOTES: (1)

In case of installation without pre-drilling hole, the LOCKT50135 connector must be installed 5 mm lower than the upper wire of the secondary beam, in order to respect the minimum distances of the screws.

66 | LOCK T | CONCEALED BEAM JOINTS

INSTALLATION ON BEAM | LOCK T Ø7 MAIN BEAM

SECONDARY BEAM

BF ≥B nj

HF ≥H

SF = 22 mm

The HF dimension refers to the minimum height of the grooving at constant width. The rounded part must be taken into account when grooving.

INSTALLATION ON COLUMN | LOCK T Ø7 COLUMN

BEAM

B c nj hj

bj BS

SF = 22 mm

CONNECTOR POSITIONING | LOCK T Ø7 connector

cmin [mm]

LOCKT50135

LOCKT50175

LOCKT75175

LOCKT75215

LOCKT100215

CONCEALED BEAM JOINTS | LOCK T | 67

GEOMETRY | LOCK T FLOOR WALL

FLOOR

CONNECTOR LOCK T FLOOR

SCREWS

WALL

FLOOR

nH+nj - ØxL

BW,min

hp,min

[mm]

135(3)

LBS no. of modules(2)

BxHxs [mm]

[mm]

LOCKTFLOOR135

300x135x22

8+8 - Ø7x80

LOCKTFLOOR135

600x135x22

16+16 - Ø7x80

LOCKTFLOOR135

900x135x22

24+24 - Ø7x80

LOCKTFLOOR135

1200x135x22

32+32 - Ø7x80

type

CONCEALED INSTALLATION | LOCK T FLOOR WALL

FLOOR

≥ 15 mm

HF ≥ 145 mm

≥ 10 mm (3)

≥ 10 mm

SF = 22 mm

EXPOSED INSTALLATION | LOCK T INSTALLATION WALL

FLOOR

≥ 15 mm

SF = 22 mm

NOTES: (2)

The connector with 1200 mm length can be cut into modules with 300 mm width.

68 | LOCK T | CONCEALED BEAM JOINTS

(3)

In case of installation with the floor aligned with the top wire of the wall, the connector should be installed 10 mm from the top edge of the CLT floor. This allows the minimum distance between the screws in the wall with respect to the top of the panel. In this case, the minimum thickness of the h P floor is 145 mm.

INSTALLATION EXPOSED INSTALLATION WITH LOCK STOP 1

Place the connector on the main element and fasten the first screws. When using LOCK STOP (optional) position LOCK STOP and fasten the remaining screws.

Place the connector on the secondary beam and fasten the first screws. When using LOCK STOP (optional) position LOCK STOP and fasten the remaining screws.

Hook the secondary beam fitting it from the top to the bottom.

It is possible to insert anti-slip screws without structural function, by drilling one hole Ø5 inclined at 45° in the upper part of the connector. A Ø5 screw must be inserted in the hole.

CONCEALED INSTALLATION 1

Carry out the grooving on the main element. Place the connector on the main element and fasten all screws.

Place the connector on the secondary beam and fasten all screws.

Hook the secondary beam fitting it from the top to the bottom.

It is possible to insert anti-slip screws without structural function, by drilling one or more holes Ø5 inclined at 45° in the upper part of the connector. A Ø5 screw must be inserted in the holes.

SEMI-CONCEALED INSTALLATION 2

Place the connector on the main element and fasten all screws.

Perform full grooving on the secondary beam. Position the connector and fasten all screws.

Hook the secondary beam fitting it from the top to the bottom.

CONCEALED BEAM JOINTS | LOCK T | 69

OPTIONAL INCLINED SCREWS The holes inclined at 45° must be drilled on site using a drill and iron drill bit with a diameter of 5 mm. The image shows the positions for the optional inclined holes.

52,5

17,5

20 15

20 17,5 15

LOCKT1880

LOCKT3580 LOCKT35100 LOCKT35120

LOCKT53120

100

LOCKT50135 LOCKT50175

LOCKT75175 LOCKT75215

LOCKT100215 optional screw Ø5 mm

type

optional screws Ø5 L max [mm]

45°

LOCKT1880 LOCKT3580 LOCKT35100 LOCKT35120 LOCKT53120 LOCKT50135 LOCKT50175 LOCKT75175 LOCKT75215 LOCKT100215

LOCK T FLOOR INSTALLATION ON CLT

Place the connector on the wall and fasten all screws.

Place the connector on the floor and fasten all screws.

Hook the floor fitting it from the top to the bottom.

70 | LOCK T | CONCEALED BEAM JOINTS

STATIC VALUES LOCK T Ø5 LOCK T CONNECTOR

TIMBER

ALUMINIUM

LBS screws type

BxHxs

nH+nj - ØxL

Rv,timber,k

Rv,alu,k

[mm]

[kN]

C24(4) LOCKT1880

17,5 x 80 x 20

LOCKT3580

35 x 80 x 20

LOCKT35100

35 x 100 x 20

LOCKT35120

35 x 120 x 20

LOCKT53120

52,5 x 120 x 20

LOCKT 35100 + 35100

70 x 100 x 20

LOCKT 35120 +35120

70 x 120 x 20

LOCKT 35120 + 53120

87,5 x 120 x 20

GL24h(5)

LVL(6)

2+2 - Ø5x50

2,33

2,54

2,58

2+2 - Ø5x70

2,86

3,00

2,99

4+4 - Ø5x50

4,65

5,07

5,17

4+4 - Ø5x70

5,72

6,00

5,97

6+6 - Ø5x50

6,98

7,61

7,75

6+6 - Ø5x70

8,57

8,99

8,96

8+8 - Ø5x50

9,31

10,15

10,33

8+8 - Ø5x70

11,43

11,99

11,94

12+12 - Ø5x50

13,96

15,22

15,50

12+12 - Ø5x70

17,15

17,99

17,92

12+12 - Ø5x50

13,96

15,22

15,50

12+12 - Ø5x70

17,15

17,99

17,92

16+16 - Ø5x50

18,61

20,30

20,66

16+16 - Ø5x70

22,87

23,98

23,89

20+20 - Ø5x50

23,27

25,37

25,83

20+20 - Ø5x70

28,58

29,98

29,86

10,0 20,0 20,0 20,0 30,0

40,0 40,0 50,0

LOCK T Ø7 LOCK T CONNECTOR

TIMBER

ALUMINIUM

LBS screws type

BxHxs

nH+nj - ØxL

Rv,timber,k

Rv,alu,k

[mm]

[kN]

C24(4)

GL24h(5)

LVL(6)

LOCKT50135

50 x 135 x 22

6+6 - Ø7x80

15,38

16,36

15,90

30,0

LOCKT50175

50 x 175 x 22

8+8 - Ø7x80

20,50

21,81

21,20

40,0

LOCKT75175

75 x 175 x 22

12+12 - Ø7x80

30,75

32,72

31,80

60,0

LOCKT75215

75 x 215 x 22

18+18 - Ø7x80

46,13

49,08

47,70

60,0

LOCKT100215

100 x 215 x 22

24+24 - Ø7x80

61,51

65,43

63,60

80,0

LOCKT 50135 + 50135

100 x 135 x 22

12+12 - Ø7x80

30,75

32,72

31,80

60,0

LOCKT 50175 + 50175

100 x 175 x 22

16+16 - Ø7x80

41,01

43,62

42,40

80,0

LOCKT 50175 + 75175

125 x 175 x 22

20+20 - Ø7x80

51,26

54,53

53,00

100,0

LOCKT 75215 + 75215

150 x 215 x 22

36+36 - Ø7x80

92,26

98,15

95,40

120,0

LOCKT 75215 + 100215

175 x 215 x 22

42+42 - Ø7x80

107,64

114,51

111,30

140,0

CONCEALED BEAM JOINTS | LOCK T | 71

STATIC VALUES LOCK T FLOOR FOR CLT CONNECTOR LOCK T FLOOR

TIMBER

ALUMINIUM

LBS screws type

BxHxs

nH+nj - ØxL

Rv,timber,k

Rv,alu,k

[mm]

[kN]

CLT(7) LOCKTFLOOR135

300 x 135 x 22

8+8 - Ø7x80

20,40

240,0

LOCKTFLOOR135

600 x 135 x 22

16+16 - Ø7x80

40,79

480,0

LOCKTFLOOR135

900 x 135 x 22

24+24 - Ø7x80

61,19

720,0

LOCKTFLOOR135

1200 x 135 x 22

32+32 - Ø7x80

81,59

960,0

CONNECTION STIFFNESS The sliding module can be calculated according to ETA-19/0831, with the following expression:

Kv,ser =

n ρm1,5 d 0,8 kN mm 30

where: • d is the diameter of the screw thread in the secondary beam, in mm; • ρm is the average density of the secondary beam, in kg/m3; • n is the number of screws in the secondary beam.

NOTES:

GENERAL PRINCIPLES:

(4)

• The design values are obtained from the characteristic values as follows:

(5)

Values calculated according to ETA-19/0831, ETA-11/0030 and EN 1995-1-1 for screws without pre-drilling hole. The strength value can be accepted as valid, for higher safety standards, even in the presence of pre-drill. ρ k=350 kg/m3 has been taken in consideration in the calculation. Values calculated according to ETA-19/0831, ETA-11/0030 and EN 1995-1-1 for screws without pre-drilling hole. The strength value can be accepted as valid, for higher safety standards, even in the presence of pre-drill. ρ k=385 kg/m3 has been taken in consideration in the calculation.

(6)

Values calculated according to ETA-19/0831, ETA-11/0030 and EN 1995-1-1 for screws with pre-drilling hole. ρ k=480 kg/m3 has been taken in consideration in the calculation.

(7)

• The coefficient γ M2 is the partial coefficient for aluminium sections subject to tension, to be taken according to the current regulations used for the calculation. If there are no other provisions, it is suggested to use the value provided by EN 1999-1-1, equal to γ M2=1.25. • The coefficient γ M the relevant safety coefficient, on the timber connection side, to be taken according to the current regulations used for the calculation. • The design strength is obtained from the characteristic values as follows:

Rv,d = min

Rv,timber,d = Rv,timber,k kmod γM Rv,alu,k Rv,alu,d = γM2

• Dimensioning and verification of the timber elements must be carried out separately. In particular, for loads perpendicular to the beam axis, it is recommended to perform a splitting check in both wooden elements. • If coupled connectors are used, special care must be taken in alignment during installation to avoid different stresses in the two connectors. • Screws with the same length must be used in all holes, separately for each side of the connector. It is possible to use screws of different length in the two connectors, main element side and secondary beam side. • The connector must always be fully fastened using all the holes. • The pre-drill is not required for screws on main or secondary beam, with characteristic density ρ k≤420 kg/m3 . The pre-drill is mandatory on main or secondary beam with characteristic density ρ k> 420 kg/m3 . • For screws on column, pre-drilling is always mandatory. • For the LOCKTFLOOR135 connector installed on CLT panels no pre-drilling hole is required.

72 | LOCK T | CONCEALED BEAM JOINTS

LOCK T EVO TIMBER

ETA 19/0831

OUTDOOR CONCEALED HOOK TIMBER-TO-TIMBER CONNECTOR ALLUMINIO EVO Thanks to the special painting it can be used outdoors in service class 3. Easy and quick to install, it can be fastened with a single type of screw.

OUTDOOR The joint can be easily disassembled, ideal for the construction of temporary structures exposed to weather.

AGGRESSIVE WOODS Ideal for applications with woods containing tannin or treated with impregnating agents and other chemical processes.

CHARACTERISTICS FOCUS

outdoor joints that can be disassembled

TIMBER SECTIONS from 53 x 80 mm to 160 x 280 mm STRENGTH

Rv,k up to 35 kN

FASTENERS

HBS PLATE EVO, KKF AISI410

VIDEO Scan the QR Code and watch the video on our YouTube channel

MATERIAL Aluminium alloy with special paint in graphite black colour.

FIELDS OF USE Outdoor timber-to-timber shear joints • solid timber and glulam • CLT, LVL • aggressive woods (containing tannin) • chemically treated woods

74 | LOCK T EVO | CONCEALED BEAM JOINTS

SERVICE CLASS 3 The specially painted aluminium alloy together with the C4 EVO coated screws or martensitic stainless steel screws allow the joint to be used in service class 3.

OAK FRAME Ideal for fastening aggressive woods containing tannin, such as chestnut and oak. Assembly with KKF AISI410 outdoor screws.

CONCEALED BEAM JOINTS | LOCK T EVO | 75

CODES AND DIMENSIONS LOCK T EVO Ø5 CODE

nscrews - Ø

[mm]

nLOCKSTOP - type

pcs *

LOCKTEVO3580

8 - Ø5

2 LOCKSTOP5

LOCKTEVO35120

120

16 - Ø5

4 LOCKSTOP5

Screws and LOCK STOP not included in the package. * number of connector pairs

LOCKTEVO3580

LOCKTEVO35120

LOCK STOP Ø5 CODE

[mm]

27,5

LOCKSTOP5

pcs

100

The use of LOCK STOP is optional and does not affect structural performance.

HBS PLATE EVO CODE

[mm]

HBSPEVO550

TX25

200

HBSPEVO570

TX25

100

pcs

[mm]

KKF550

TX25

200

KKF570

TX25

100

d1 L

KKF AISI410 CODE

MATERIAL AND DURABILITY

d1 L

EXTERNAL LOADS

LOCK T EVO: EN AW-6005A aluminium alloy. To be used in service classes 1, 2 and 3 (EN 1995-1-1). Fv

FIELD OF USE • Timber-to-timber joints between solid timber, glulam, LVL and CLT structural elements

76 | LOCK T EVO | CONCEALED BEAM JOINTS

CODES AND DIMENSIONS LOCK T EVO Ø6 CODE

nscrews - Ø

nLOCKSTOP - type

pcs*

16 - Ø6

4 LOCKSTOP 7

36 - Ø6

4 LOCKSTOP 7

[mm]

LOCKTEVO50175

175

LOCKTEVO75215

215

Screws and LOCK STOP not included in the package. * number of connector pairs B

LOCKTEVO50175

LOCK STOP Ø6

CODE

LOCKSTOP7

pcs

[mm]

26,5

LOCKTEVO75215

The use of LOCK STOP is optional and does not affect structural performance.

HBS PLATE EVO CODE

HBSPEVO680

pcs

[mm]

TX30

100

pcs

[mm]

d1 L

KKF AISI410 CODE

KKF680

d1 TX30

100

PERGOLAS AND GAZEBOS Ideal for the construction of wooden structures placed outdoors and in service class 3. Possibility to uninstall the joint for seasonal needs.

CONCEALED BEAM JOINTS | LOCK T EVO | 77

GEOMETRY | LOCK T EVO Ø5

main element

secondary beam

SINGLE CONNECTOR LOCK T EVO CONNECTOR

type

MAIN ELEMENT

SCREWS

SECONDARY BEAM

HBS PLATE EVO KKF AISI410

column

beam

BxHxs

nH+nj - ØxL

BS,min x HS,min

BH,min x HH,min

bJ,min x hj,min

[mm]

with pre-drilling without pre-drilling with pre-drilling hole hole hole LOCKTEVO3580

35 x 80 x 20

LOCKTEVO35120

35 x 120 x 20

4+4 - Ø5x50

53 x 50

50 x 95

4+4 - Ø5x70

53 x 70

70 x 95

8+8 - Ø5x50

53 x 50

50 x 135

8+8 - Ø5x70

53 x 70

70 x 135

without pre-drilling hole

53 x 80

61 x 80

53 x 120

61 x 120

COUPLED CONNECTORS LOCK T EVO CONNECTOR

type

MAIN ELEMENT

SCREWS

SECONDARY BEAM

HBS PLATE EVO KKF AISI410

column

beam

BxHxs

nH+nj - ØxL

BS,min x HS,min

BH,min x HH,min

bJ,min x hj,min

[mm]

with pre-drilling without pre-drilling with pre-drilling without pre-drilling hole hole hole hole LOCKTEVO 35120 + 35120

70 x 120 x 20

16+16 - Ø5x50

88 x 50

50 x 135

16+16 - Ø5x70

88 x 70

70 x 135

78 | LOCK T EVO | CONCEALED BEAM JOINTS

88 x 120

96 x 120

INSTALLATION ON BEAM | LOCK T EVO Ø5 MAIN BEAM

SECONDARY BEAM

BF ≥B

B nj

HF ≥H

hj HH

bj BH

SF = 20 mm

The HF dimension refers to the minimum height of the grooving at constant width. The rounded part must be taken into account when grooving.

INSTALLATION ON COLUMN | LOCK T EVO Ø5 COLUMN

BEAM

c nj

hj nH bj BS

SF = 20 mm

CONNECTOR POSITIONING | LOCK T EVO Ø5 connector

cmin [mm]

LOCKTEVO3580

7,5

LOCKTEVO35120

2,5

CONCEALED BEAM JOINTS | LOCK T EVO | 79

GEOMETRY | LOCK T EVO Ø6

main element

secondary beam

SINGLE CONNECTOR LOCK T EVO CONNECTOR

type

MAIN ELEMENT

SCREWS

SECONDARY BEAM

HBS PLATE EVO KKF AISI410

column

beam

BxHxs

nH+nj - ØxL

BS,min x HS,min

BH,min x HH,min

bJ,min x hj,min

[mm]

with pre-drilling without pre-drilling with pre-drilling hole hole hole

without pre-drilling hole

LOCKTEVO50175

50 x 175 x 22

8+8 - Ø6x80

68 x 80

80 x 180

68 x 175

80 x 175

LOCKTEVO75215

75 x 215 x 22

18+18 - Ø6x80

93 x 80

80 x 220

93 x 215

105 x 215

COUPLED CONNECTORS LOCK T EVO CONNECTOR

type

MAIN ELEMENT

SCREWS

SECONDARY BEAM

HBS PLATE EVO KKF AISI410

column

beam

BxHxs

nH+nj - ØxL

BS,min x HS,min

BH,min x HH,min

bJ,min x hj,min

[mm]

with pre-drilling without pre-drilling with pre-drilling without pre-drilling hole hole hole hole LOCKTEVO 50175 + 50175

100 x 175 x 22

16+16 - Ø6x80

118 x 80

80 x 180

118 x 175

130 x 175

LOCKTEVO 75215 + 75215

150 x 215 x 22 36+36 - Ø6x80

168 x 80

80 x 220

168 x 215

180 x 215

80 | LOCK T EVO | CONCEALED BEAM JOINTS

INSTALLATION ON BEAM | LOCK T EVO Ø6 MAIN BEAM

SECONDARY BEAM

BF ≥B

B nj

HF ≥H

SF = 22 mm

The HF dimension refers to the minimum height of the grooving at constant width. The rounded part must be taken into account when grooving.

INSTALLATION ON COLUMN | LOCK T EVO Ø6 COLUMN

BEAM

c nj hj

nH bj BS

SF = 22 mm

CONNECTOR POSITIONING | LOCK T EVO Ø6 connector

cmin [mm]

LOCKTEVO50175

LOCKTEVO75215

CONCEALED BEAM JOINTS | LOCK T EVO | 81