ISO 22762-5:2021

INTERNATIONAL ISO
STANDARD 22762-5
First edition
2021-08
Elastomeric seismic-protection
isolators —
Part 5:
Sliding seismic-protection isolators
for buildings
Appareils d'appuis structuraux en élastomère pour protection
sismique —
Partie 5: Isolateurs de protection sismique glissants pour bâtiments
Reference number
©
ISO 2021
© ISO 2021
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ii © ISO 2021 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 3
5 Classification . 6
5.1 Isolator types . 6
5.2 Classification by sliding friction coefficient . 6
5.3 Cross-section of isolator . 6
6 Requirements . 7
6.1 General . 7
6.2 Type tests and routine tests. 9
6.3 Functional requirements .10
6.4 Design compressive force and design horizontal velocity .10
6.5 Performance requirements .10
6.5.1 General.10
6.5.2 Tolerance on properties.11
6.6 Rubber material .11
6.6.1 Requirements .11
6.7 Sliding material.12
6.7.1 Requirements .12
6.7.2 Sliding materials tests .12
6.8 Requirements on steel used for flanges, connecting flanges, key plates, steel plates,
backing plates, sliding plates and base plates .13
7 Isolator tests .13
7.1 General .13
7.2 Compression, shear stiffness and friction coefficient tests .13
7.2.1 Compression properties .13
7.2.2 Compressive-shear test .13
7.3 Various dependence tests .16
7.3.1 Compressive force dependence of shear properties .16
7.3.2 Velocity dependence of shear properties .18
7.3.3 Repeated deformation dependence of shear properties .20
7.3.4 Temperature dependence of shear properties .22
7.3.5 Vertical loading time dependence of shear properties .24
7.3.6 Dependence of compressive stiffness on compressive stress range .26
7.4 Ultimate shear properties .28
7.4.1 Principle .28
7.4.2 Test machine .28
7.4.3 Test piece .28
7.4.4 Test conditions.28
7.4.5 Procedure .28
7.4.6 Expression of results .29
7.4.7 Test report .29
7.5 Durability testing .30
7.5.1 Degradation test .30
7.5.2 Creep test . .31
8 Rubber material tests .32
8.1 Tensile properties tests .32
8.2 Hardness test .32
8.3 Ozone resistance test .32
9 Design rules .32
9.1 General .32
9.2 Elastic sliding bearing .33
9.2.1 Vertical stiffness .33
9.2.2 Horizontal properties .33
9.2.3 Maximum horizontal displacement .33
9.2.4 Maximum compressive load .34
10 Manufacturing tolerances .34
10.1 General .34
10.2 Measuring instruments .35
10.3 Plan dimensions .35
10.3.1 Measurement method .35
10.3.2 Tolerances .35
10.4 Product height .36
10.4.1 Measurement method .36
10.4.2 Tolerances .36
10.5 Flatness .37
10.5.1 Measurement method .37
10.5.2 Tolerances .37
10.6 Horizontal offset .38
10.7 Plan dimensions of flanges .38
10.8 Flange thickness .
...