ISO 22762-3:2024

International
Standard
ISO 22762-3
Fourth edition
Elastomeric seismic-protection
2024-09
isolators —
Part 3:
Applications for buildings —
Specifications
Appareils d'appuis structuraux en élastomère pour protection
sismique —
Partie 3: Applications pour bâtiments — Spécifications
Reference number
© ISO 2024
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Published in Switzerland
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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 General .6
5.2 Classification by construction .7
5.3 Classification by tolerance on shear properties .8
6 Requirement . 8
6.1 General .8
6.2 Type tests and routine tests .9
6.3 Functional requirements . .10
6.4 Design compressive force and design shear displacement .10
6.5 Performance requirements .10
6.5.1 General .10
6.5.2 Compressive properties .11
6.5.3 Shear properties . 12
6.5.4 Tensile properties . . 12
6.5.5 Dependences of shear properties . 13
6.5.6 Dependences of compressive properties .14
6.5.7 Shear displacement capacity . 15
6.5.8 Durability . 15
6.6 Rubber material requirements .16
6.6.1 General .16
6.6.2 Tensile properties . .16
6.6.3 Properties after ageing in air .16
6.6.4 Hardness .17
6.6.5 Ozone resistance .17
6.6.6 Other properties .17
6.7 Dimensional requirements .17
6.8 Requirements on steel used for flanges and reinforcing plates .18
6.9 Requirement on lead material for LRB .19
7 Design rules. 19
7.1 General .19
7.2 Shape factor . .19
7.2.1 First shape factor .19
7.2.2 Second shape factor . 20
7.3 Compression and shear properties . 20
7.3.1 Compressive stiffness . 20
7.3.2 Shear stiffness and equivalent damping ratio . 20
7.4 Ultimate properties .21
7.4.1 Stability at zero displacement .21
7.4.2 Stability and failure under large shear displacements . 22
7.4.3 Roll-out properties of elastomeric isolators with recessed or dowelled
connections (Type III) . 22
7.4.4 Tensile properties . . 23
7.5 Reinforcing steel plates .24
7.6 Connections .24
8 Manufacturing tolerances . .24
8.1 General .24

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8.2 Measuring instruments . 25
8.3 Plan dimensions . 25
8.3.1 Measurement method . 25
8.3.2 Tolerances . 25
8.4 Product height . 26
8.4.1 Measurement method . 26
8.4.2 Tolerances .27
8.5 Flatness .27
8.5.1 Measurement method .27
8.5.2 Tolerances .27
8.6 Horizontal offset .27
8.7 Plan dimensions of flanges . 28
8.8 Flange thickness . . 28
8.9 Tolerances on positions of flange bolt holes . 29
9 Marking and labelling .29
9.1 General . 29
9.2 Information to be provided .
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