ISO 8375:2017

INTERNATIONAL ISO
STANDARD 8375
Third edition
2017-06
Timber structures — Glued
laminated timber — Test methods
for determination of physical and
mechanical properties
Structures en bois — Bois lamellé-collé — Méthodes d’essai pour la
détermination de certaines propriétés physiques et mécaniques
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and suffixes . 2
4.1 Symbols . 2
4.2 Suffixes . 3
5 Determination of dimensions of test specimens . 3
6 Determination of moisture content of test specimens . 3
7 Determination of density of test specimens . 4
8 Conditioning of test specimens . 4
9 Determination of local (shear-free) modulus of elasticity of the beam in bending .4
9.1 Test specimen . 4
9.2 Procedure . 4
9.3 Expression of results . 5
10 Determination of global modulus of elasticity of the beam in bending .6
10.1 Test specimen . 6
10.2 Procedure . 6
10.3 Expression of results . 7
11 Determination of shear modulus of the beam — Variable span method .7
11.1 General . 7
11.2 Test piece . 8
11.3 Procedure . 8
11.4 Expression of results . 9
11.4.1 Determination of K and K .
1 2 9
11.4.2 Shear modulus . 9
12 Determination of bending strength of the beam.10
12.1 Test specimen .10
12.2 Procedure .10
12.3 Expression of results .11
13 Determination of the modulus of elasticity in tension parallel to the grain of the
glued laminated timber .11
13.1 General .11
13.2 Test specimen .11
13.3 Procedure .11
13.4 Expression of results .12
14 Determination of the parallel to the grain tension strength of the glued
laminated timber .12
14.1 Test specimen .12
14.2 Procedure .12
14.3 Expression of results .12
15 Determination of the modulus of elasticity in compression parallel to the grain of
the glued laminated timber.13
15.1 General .13
15.2 Test specimen .13
15.3 Procedure .13
15.4 Expression of results .13
16 Determination of the parallel to grain compression strength of the glued
laminated timber .14
16.1 Test specimen .14
16.2 Procedure .14
16.3 Expression of results .14
17 Determination of the modulus of elasticity in compression and tension
perpendicular to the grain of the glued laminated timber .14
17.1 Requirements for test specimens .14
17.2 Procedure .15
17.3 Expression of results .15
17.3.1 Compression perpendicular to the grain .15
17.3.2 Tension perpendicular to the grain .16
18 Determination of tension and compression strengths perpendicular to the grain of
the glued laminated timber.17
18.1 Requirements for test specimens .17
18.1.1 Fabrication .17
18.1.2 Surface preparation .17
18.2 Procedure .17
18.3 Expression of results .19
18.3.1 Compression perpendicular to the grain .19
18.3.2 Tension perpendicular to the grain .20
19 Determination of shear strength parallel to the grain — Small specimen test .20
19.1 Requirements for test specimens .20
19.1.1 Fabrication .20
19.1.2 Surface preparation .20
19.2 Procedure .21
19.3 Expression of results .22
20 Determination of shear strength parallel to the grain — Full size beam test .23
20.1 Specimen .
...