ISO 22762-1:2024
(Main)Elastomeric seismic-protection isolators — Part 1: Test methods
Elastomeric seismic-protection isolators — Part 1: Test methods
This document specifies the test methods for determination of a) the properties of the rubber material used to manufacture the elastomeric isolators, and b) the characteristics of elastomeric isolators. It is applicable to elastomeric isolators used to provide buildings or bridges with protection from earthquake damage. The elastomeric isolators covered consist of alternate elastomeric layers and reinforcing steel plates which are placed between a superstructure and its substructure to provide both flexibility for decoupling structural systems from ground motion, and damping capability to reduce displacement at the isolation interface and the transmission of energy from the ground into the structure at the isolation frequency.
Appareils d'appuis structuraux en élastomère pour protection sismique — Partie 1: Méthodes d'essai
General Information
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Standards Content (Sample)
International
Standard
ISO 22762-1
Fourth edition
Elastomeric seismic-protection
2024-09
isolators —
Part 1:
Test methods
Appareils d'appuis structuraux en élastomère pour protection
sismique —
Partie 1: Méthodes d'essai
Reference number
© ISO 2024
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Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and cross-section of elastomeric isolator . 4
4.1 Symbols .4
4.2 Cross-section of elastomeric isolator .7
5 Rubber material tests . 9
5.1 Test items .9
5.2 Test conditions and test pieces .9
5.3 Tensile properties .9
5.4 Ageing test .10
5.4.1 Ageing properties of inner rubber .10
5.4.2 Ageing properties of cover rubber .10
5.5 Hardness .10
5.6 Adhesion .10
5.7 Compression set .10
5.8 Dynamic shear properties .10
5.8.1 General .10
5.8.2 Test equipment .11
5.8.3 Test pieces .11
5.8.4 Test conditions . 12
5.8.5 Test results . 12
5.9 Breaking properties . 13
5.10 Brittleness point . 13
5.11 Ozone resistance . 13
5.12 Low-temperature crystallization . 13
6 Elastomeric isolator tests . 14
6.1 General .14
6.2 Compression and shear stiffness tests .14
6.2.1 Compression properties .14
6.2.2 Compressive-shear test .21
6.3 Various dependence tests .27
6.3.1 Strain dependence of shear properties .27
6.3.2 Compressive force dependence of shear properties . 28
6.3.3 Frequency dependence of shear properties . 30
6.3.4 Repeated deformation dependence of shear properties .32
6.3.5 Temperature dependence of shear properties. 34
6.3.6 Dependence of compression properties on shear strain . 36
6.3.7 Dependence of compressive stiffness on compressive stress range .37
6.4 Ultimate shear properties . 39
6.4.1 Principle . 39
6.4.2 Test machine . 39
6.4.3 Test piece . 39
6.4.4 Test conditions . 39
6.4.5 Procedure . 39
6.4.6 Expression of results . 40
6.4.7 Test report .41
6.5 Tensile testing .41
6.5.1 Principle .41
6.5.2 Test machine .41
6.5.3 Test piece .42
iii
6.5.4 Test conditions .42
6.5.5 Procedure .42
6.5.6 Expression of results .42
6.5.7 Test report .43
6.6 Durability testing . 44
6.6.1 Degradation test . 44
6.6.2 Creep test .45
6.6.3 Fatigue test . 49
6.7 Reaction force due to low-rate deformation .51
6.7.1 Principle .51
6.7.2 Test machine .52
6.7.3 Test piece .52
6.7.4 Test conditions .52
6.7.5 Procedure .52
6.7.6 Expression of result . 53
6.7.7 Test report .
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