| Study on Performance of High-strength Isolation Rubber Bearing |
| Received:March 30, 2021 Revised:March 30, 2021 |
| DOI：10.12136/j.issn.1000-890X.2022.04.0295 |
| Key Words: high-strength isolation rubber bearing；yield stress；ultimate tensile stress；ultimate horizontal deformation |
| Author Name | Affiliation | E-mail | | LI Shiyao* | Quakesafe Technologies Co.， Ltd | 1012497416@qq.com | | ZHAO Qingbing | Quakesafe Technologies Co.，Ltd | | | LU Hao | Quakesafe Technologies Co.，Ltd | | | ZHANG Hang | Quakesafe Technologies Co.，Ltd | | | LI Jinbao | Quakesafe Technologies Co.，Ltd | | | ZHAO Runmei | Quakesafe Technologies Co.，Ltd | | | WANG Xianbin | Quakesafe Technologies Co.，Ltd | | | GUAN Qingsong | Quakesafe Technologies Co.，Ltd | |
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| Abstract: |
| Based on the disadvantage of low tensile properties of ordinary isolation rubber bearing，which was suitable for the use of building with large height/width ratio，a high-strength isolation rubber bearing was developed and experimentally tested. The results showed that the yield stress of the high-strength isolation rubber bearing was significantly higher than that of the ordinary isolation rubber bearing，up to 3. 5 MPa，the ultimate tensile stress exceeded 5. 96 MPa，and the ultimate shear strain was over 500% of the total thickness of the rubber layers. The conventional mechanical properties of the high-strength isolation rubber bearing changed little after being stretched，and the horizontal isolation performance was maintained. The high-strength isolation rubber bearing integrated the functions of vertical bearing，vertical tension resistance，horizontal deformation，energy consumption and automatic resetting. Furthermore, its tensile capacity was improved without increasing the isolation cost. The high-strength isolation rubber could be widely applied in buildings with large height-width ratio. |
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