地铁上盖多塔楼隔震与减振设计研究

发布时间：2018-03-17 13:41

本文选题：上盖多塔结构　切入点：转换层　出处：《土木工程学报》2016年S1期 　论文类型：期刊论文

【摘要】：考虑到转换层刚度突变对结构地震响应的不利影响以及地铁振动带来的舒适度问题,采用厚肉橡胶支座对上海莘庄地铁上盖多塔结构进行了层间隔震设计研究。采用时程分析方法,分别对采用刚性转换层结构方案和隔震层转换方案进行了计算。通过设防地震作用下刚性方案和隔震方案的结构响应对比,验证了隔震效果。通过罕遇地震作用下隔震层转换方案支座最大位移和拉应力验算,验证了隔震结构在罕遇地震作用下的安全性能。并根据相关规定,验算了结构抗风和微振动的性能。计算结果表明,经过合理的设计,采用厚肉橡胶支座的隔震既能达到普通橡胶支座隔震相同的效果,又没有结构的倾覆摇摆问题,为上盖塔楼结构的抗震与减振设计提供了一种新思路。
[Abstract]:Taking into account the negative impact of the sudden change in the stiffness of the transfer layer on the seismic response of the structure and the problem of comfort caused by the vibration of the subway, The design of multi-tower structure of upper cover of Shanghai Xinzhuang Metro is studied by using thick meat rubber bearing. The method of time history analysis is used to study the design of multi-tower structure of upper cover of Shanghai Xinzhuang Metro. The structural responses of rigid and isolated structures under earthquake protection are calculated respectively, and the structural responses of rigid schemes and isolation schemes are compared. By checking the maximum displacement and tensile stress of the isolated structure under the action of rare earthquake, the safety performance of isolated structure under the action of rare earthquake is verified. The results show that, through reasonable design, the isolation of thick rubber bearing can not only achieve the same effect as that of ordinary rubber bearing, but also have no overturning and swaying problem of structure. It provides a new idea for the seismic and vibration absorption design of the upper tower structure.
【作者单位】：同济大学土木工程防灾国家重点实验室;华东建筑设计研究总院;
【基金】：国家自然科学基金优秀青年科学基金(51322803)
【分类号】：TU973.31

【参考文献】