| 抗拉隔震橡胶支座的性能研究 |
| Study on Performance of High-strength Isolation Rubber Bearing |
| 投稿时间：2021-03-30 修订日期：2021-03-30 |
| DOI：10.12136/j.issn.1000-890X.2022.04.0295 |
| 中文关键词: 抗拉隔震橡胶支座 屈服拉应力 极限拉应力 水平极限变形 |
| 英文关键词: high-strength isolation rubber bearing yield stress ultimate tensile stress ultimate horizontal deformation |
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| 中文摘要: |
| 基于普通隔震橡胶支座拉伸性能偏低，不利于在高宽比较大的建筑上使用的缺点， 开发了一种抗拉隔震橡胶支座，并进行了试验研究。结果表明：抗拉隔震橡胶支座的屈服拉应力较普通隔震橡胶支座有明显提高，达3.5 MPa，极限拉应力超过5.96 MPa，极限剪应变不小于橡胶层总厚度的500%；抗拉隔震橡胶支座拉伸后常规力学性能变化较小，水平隔震性能得以保持。抗拉隔震橡胶支座集竖向承载、竖向抗拉、水平变形和耗能、自动复位功能于一身，在不增加隔震成本的前提下提高了抗拉能力，可在大高宽比建筑上推广运用。 |
| 英文摘要: |
| 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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