某幼儿园基础隔震结构设计分析

对厦门某一幼儿园教学楼进行基础隔震设计,分析结构在设防烈度下地震作用的结构反应。通过有限元软件分析和对比抗震结构和隔震结构两者的周期,层间剪力和层间位移。结果表明,隔震结构的周期延长;减震系数小于0.4;层间位移集中在隔震支座,上部结构的层间位移明显减小,减震效果明显。证明隔震设计提高了结构安全性。

Design Analysis on Base Isolation structure of a kindergarten Building

Base isolation design of a kindergarten teaching building in Xiamen is taken and then it analyzes the structure dynamic response under fortification earthquake.By finite element analysis software we compare the period,interlaminar shear and interlaminar displacement of the non-isolated structure and isolated structure.The results show that,the period of the structure becomes longer and the damping coefficient is less than 0.4;The layer displacement concentrates on the isolation layer,and the layer displacement of the upper structure is significantly reduced.The structure achieved good damping effect and it proofs that isolation design improves the structural safety level.