BS ISO 22762-2:2018 – TC:2020 Edition
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Tracked Changes. Elastomeric seismic-protection isolators – Applications for bridges. Specifications
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 157 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 93 | National foreword |
| 98 | Foreword |
| 99 | Introduction |
| 100 | 1 Scope 2 Normative references 3 Terms and definitions |
| 102 | 4 Symbols |
| 105 | 5 Classification 5.1 General 5.2 Classification by construction |
| 106 | 5.3 Classification by tolerances on shear stiffness 6 Requirements 6.1 General 6.2 Type tests and routine tests |
| 109 | 6.3 Functional requirements 6.4 Design compressive force and design shear displacement 6.5 Performance requirements 6.5.1 General |
| 110 | 6.5.2 Compressive properties 6.5.3 Rotation properties 6.5.4 Shear properties |
| 111 | 6.5.5 Tensile properties |
| 112 | 6.5.6 Dependencies of shear properties |
| 113 | 6.5.7 Shear displacement capacity 6.5.8 Durability |
| 114 | 6.5.9 Cyclic compressive fatigue properties 6.5.10 Reaction force characteristics at low-rate deformation 6.6 Rubber material requirements 6.6.1 General 6.6.2 Tensile properties |
| 115 | 6.6.3 Properties after ageing in air |
| 116 | 6.6.4 Hardness 6.6.5 Adhesion properties 6.6.6 Compression set |
| 117 | 6.6.7 Ozone resistance 6.6.8 Other properties 6.7 Dimensional requirements 6.8 Requirements on steel used for flanges and reinforcing plates 7 Design rules 7.1 General |
| 119 | 7.2 Shape factor 7.2.1 First shape factor 7.2.2 Second shape factor |
| 120 | 7.3 Compressive and shear properties 7.3.1 Compressive stiffness 7.3.2 Shear stiffness and equivalent damping ratio 7.4 Shear strain due to horizontal displacements |
| 121 | 7.5 Total local shear strain 7.5.1 Local shear strain due to compressive force 7.5.2 Local shear strain due to compressive force 7.5.3 Total local shear strain |
| 122 | 7.6 Tensile stress on reinforcing steel plates 7.7 Stability 7.7.1 Maximum compressive stress in non-seismic condition 7.7.2 Rotation performance check |
| 123 | 7.7.3 Buckling check 7.7.4 Tensile stress on isolator 7.8 Force, moment and deformation affecting structures 7.8.1 Shear force affecting structures due to movement 7.8.2 Resistance to rotation |
| 124 | 7.8.3 Compressive displacement due to compressive force 7.9 Design of fixings 7.9.1 External forces affecting joint members 7.9.2 Fixings and stresses to be checked |
| 125 | 7.9.3 Allowable stress 8 Manufacturing tolerances 8.1 General 8.2 Measuring instruments 8.3 Plan dimensions of isolator body 8.3.1 Measurement method (see Figure 1) |
| 126 | 8.3.2 Tolerances 8.4 Product height 8.4.1 Measurement method |
| 128 | 8.4.2 Tolerances |
| 129 | 8.5 Flatness of products 8.5.1 Measurement method 8.5.2 Tolerances 8.6 Horizontal offset 8.6.1 Measurement method 8.6.2 Tolerances 8.7 Plan dimensions of flanges |
| 130 | 8.8 Flange thickness 8.9 Tolerances on positions of flange bolt holes |
| 131 | 9 Marking and labelling 9.1 Information to be provided 9.2 Additional requirements |
| 132 | 9.3 Marking and labelling examples 10 Test methods 11 Quality assurance |
| 133 | Annex A (normative) Tensile stress in reinforcing steel plate |
| 135 | Annex B (normative) Buckling stability |
| 136 | Annex C (normative) Allowable tensile stress in isolator |
| 137 | Annex D (informative) Dependency of ultimate properties on shape factor |
| 141 | Annex E (informative) Minimum recommended tensile properties for rubber materials |
| 142 | Annex F (informative) Compressive stiffness |
| 146 | Annex G (informative) Determination of shear properties of elastomeric isolators |
| 151 | Annex H (informative) Determination of local shear strain due to compression |
| 154 | Annex I (informative) Maximum compressive stress |
| 155 | Bibliography |
