摘要
本文介绍了某实际多层框架结构基础隔震的设计分析过程,利用有限元分析软件分析了框架结构隔震前后的自振周期,对比了在不同地震波作用下的位移、剪力等动力响应,藉以评价隔震层的减震效果。分析结果表明,隔震层可有效延长结构的自振周期;隔震结构在地震作用下的剪力、位移等反应均明显小于非隔震结构。
In this paper,the design of a real multi-storey frame structure is presented,on which base isolation technology is applied.Finite element analysis software is used to analyze the frame structure's natural vibration period before and after isolation.Dynamic responses of deformation and shear under different seismic conditions are compared to evaluate the damping effect of isolation layer.Analysis results show that isolation layer can effectively extend the structure's natural vibration period and responses of the isolated structure,like shear and deformation,are remarkably less than those of base-fixed structure under the same seismic condition.
出处
《福建建设科技》
2012年第1期19-21,共3页
Fujian Construction Science & Technology
关键词
基础隔震
框架结构
时程分析
地震响应
base isolation
frame structure
time history analysis
earthquake response
