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BS EN 1075:2014:2015 Edition

BS EN 1075:2014:2015 Edition

$142.49

Timber structures. Test methods. Joints made with punched metal plate fasteners

Published By Publication Date Number of Pages
BSI 2015 30
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This European Standard specifies the test methods for determining the strength capacity and stiffness of joints made with punched metal plate fasteners in load bearing timber structures, being used to join two or more pieces of timber of the same thickness in the same plane.

The properties measured are:

  • load-slip characteristics and maximum load resulting from the lateral resistance of the embedded projections, at various angles between the direction of the applied force and

    • the axis of the fastener (load-fastener angle α),

    • the direction of the grain of the timber (load-grain angle β),

  • the tension capacity of the fastener at various angles α,

  • the compression capacity of the fastener at various angles α,

  • the shear capacity of the fastener at various angles α.

A nail root test method is shown in Annex A.

PDF Catalog

PDF Pages PDF Title
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
8 Figure 1 — Definition of effective area of fastener
9 4 Symbols and abbreviations
5 Materials
5.1 Timber
5.2 Fasteners
10 6 Test methods
6.1 General
6.2 Conditioning
6.3 Fabrication of test pieces
11 6.4 Preparation of test pieces
6.4.1 Anchorage capacity and load-slip characteristics of contact surface and timber: load parallel to grain
Figure 2 — Test pieces for anchorage capacity and load-slip characteristics of contact surface: load parallel to grain
12 6.4.2 Anchorage capacity and load-slip characteristics of contact surface of fastener and timber: load not parallel to grain
Figure 3 — Test piece for anchorage capacity and load-slip characteristics of contact surface: load not parallel to grain
13 6.4.3 Fastener tension capacity
Figure 4 — Test piece for fastener tension capacity
14 6.4.4 Fastener compression capacity
Figure 5 — Test piece for fastener compression capacity
15 6.4.5 Fastener shear capacity
Figure 6 — Test piece for fastener shear capacity
6.5 Procedure
6.5.1 Estimation of maximum load
6.5.2 Loading procedure
16 6.5.3 Maximum load
Figure 7 — Load-slip curves for shear tests and definition of maximum load
17 6.6 Expression of results
6.6.1 Anchorage capacity
6.6.2 Fastener tension capacity
6.6.3 Fastener compression capacity
18 6.6.4 Fastener shear capacity
6.7 Determination of characteristic values
6.8 Test report
19 Annex A (normative) Nail root test
A.1 Scope
A.2 Symbols
A.3 Test piece
A.4 Test method
A.5 Test results
20 Figure A.1 — nail root test (showing a form of tool for carrying out this test)
21 Annex B (informative) Derivation of rotational stiffness of the contact surface of the fastener and timber
B.1 General
B.2 Background to the calculations
Figure B.1 — Dividing of measured total shear slip δ to force δs and moment δM slip component
B.3 Calculations
23 Annex C (informative) Examples of properly located transducers
Figure C.1 — Examples of location of transducers
24 Annex D (informative) Examples of loading arrangement
D.1 Fastener shear capacity
Figure D.1 — Test piece for shear capacity – example of loading arrangement – rectangular test piece
25 Figure D.2 — Test piece for shear capacity – example of loading arrangement – “boot” test piece
26 D.2 Fastener anchorage capacity: load not parallel to grain, (see 6.4.2).
Figure D.3 — Loading arrangement for fastener anchorage capacity: load not parallel to grain
27 Bibliography

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BS EN 1075:2014
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