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BS ISO 22762-1:2018

BS ISO 22762-1:2018

$215.11

Elastomeric seismic-protection isolators – Test methods

Published By Publication Date Number of Pages
BSI 2018 88
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This document specifies the test methods for determination of

  1. the properties of the rubber material used to manufacture the elastomeric seismic isolators, and

  2. the characteristics of elastomeric seismic isolators.

It is applicable to elastomeric seismic isolators used to provide buildings or bridges with protection from earthquake damage. The 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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
12 4 Symbols and cross-section of isolator
4.1 Symbols
15 4.2 Cross-section of isolator
17 5 Rubber material tests
5.1 Test items
5.2 Test conditions and test pieces
5.3 Tensile properties
18 5.4 Ageing test
5.4.1 Ageing properties of inner rubber
5.4.2 Ageing properties of cover rubber
5.5 Hardness
5.6 Adhesion
5.7 Compression set
5.8 Dynamic shear properties
5.8.1 General
19 5.8.2 Test equipment
5.8.3 Test pieces
20 5.8.4 Test conditions
5.8.5 Test results
21 5.9 Fracture properties
5.10 Brittleness point
5.11 Ozone resistance
5.12 Low-temperature crystallization
22 6 Isolator tests
6.1 General
6.2 Compression and shear stiffness tests
6.2.1 Compression properties
29 6.2.2 Compressive-shear test
35 6.3 Various dependence tests
6.3.1 Strain dependence of shear properties
36 6.3.2 Compressive force dependence of shear properties
38 6.3.3 Frequency dependence of shear properties
40 6.3.4 Repeated deformation dependence of shear properties
42 6.3.5 Temperature dependence of shear properties
44 6.3.6 Dependence of compression properties on shear strain
45 6.3.7 Dependence of compressive stiffness on compressive stress range
47 6.4 Ultimate shear properties
6.4.1 Principle
6.4.2 Test machine
6.4.3 Test piece
6.4.4 Test conditions
48 6.4.5 Procedure
6.4.6 Expression of results
49 6.4.7 Test report
6.5 Tensile testing
6.5.1 Principle
50 6.5.2 Test machine
6.5.3 Test piece
6.5.4 Test conditions
6.5.5 Procedure
51 6.5.6 Expression of results
52 6.5.7 Test report
6.6 Durability testing
6.6.1 Degradation test
54 6.6.2 Creep test
58 6.6.3 Fatigue test
60 6.7 Reaction force due to low-rate deformation
6.7.1 Principle
6.7.2 Test machine
61 6.7.3 Test piece
6.7.4 Test conditions
6.7.5 Procedure
62 6.7.6 Expression of result
6.7.7 Test report
63 Annex A (normative) Determination of accelerated ageing conditions equivalent to expected life at standard laboratory temperature (23 °C or 27 °C)
67 Annex B (normative) Inertia force correction
69 Annex C (normative) Friction force correction
72 Annex D (normative) Determination of coefficient linear thermal expansion
74 Annex E (informative) Alternative methods of determining shear properties
76 Annex F (informative) Creep test
78 Annex G (informative) Determination of reaction force due to low-rate deformation
81 Annex H (informative) Durability investigation of elastomeric isolators used for 10 years in a bridge
83 Annex I (informative) Durability investigation of elastomeric isolators used for seven years in a building
87 Bibliography

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BS ISO 22762-1:2018
$215.11