近断层速度脉冲型地震动对隔震结构设计影响初探
以云南澄江已建高层钢筋混凝土框架隔震结构为研究对象,该建筑距断层8km。考虑3种工况地震动输入进行隔震计算:未考虑速度脉冲的原设计地震动时程、含有速度脉冲的地震动时程和提取速度脉冲后的地震动时程。经对比分析得到如下结论:(1)与原设计时程和提取速度脉冲后时程相比,采用含速度脉冲时程计算的减震系数更大,即减震效果更差,与原设计相比,减震效果降低15.7%,与提取速度脉冲后的时程相比,减震效果降低7.1%;(2)罕遇地震下,采用含速度脉冲时程计算的隔震支座的最大水平位移更大,是原设计的1.43倍,是采用提取速度脉冲后的时程计算结果的1.68倍,原设计支座位移超限;(3)罕遇地震下,隔震支座最大拉压...
| Published in: | Jianzhu Gangjiegou Jinzhan |
|---|---|
| Main Authors: | 宋廷苏, 阿拉塔, 管庆松, 牛喜伟, 王艳茹 |
| Format: | Article |
| Language: | Chinese |
| Published: |
Editorial Department of Progress in Steel Building Structures, Tongji University
2018-01-01
|
| Subjects: | |
| Online Access: | http://steelpro.tongji.edu.cn/thesisDetails#10.13969/j.cnki.cn31-1893.2018.04.001 |
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