摘要
近年来,功能可恢复已逐渐成为地震工程领域的研究热点。隔震技术是实现高烈度区RC剪力墙高层结构震后功能可恢复的重要手段。屈重比是隔震结构设计的关键参数,然而目前对于该类隔震结构的合理屈重比研究相对较少。本研究以3栋位于高烈度区的RC剪力墙高层隔震设计案例为原型,基于精细有限元模型,研究了屈重比对该类结构减震系数和隔震层位移的影响规律,建议了适用于RC剪力墙高层隔震结构的合理屈重比取值范围(2. 0%～2. 7%)。本文的相关成果可为RC剪力墙高层结构隔震设计提供参考。
Research on the seismic resilient structures has become a critical issue in the earthquake engineering,recently. The seismic isolation technology is an important method to achieve seismic resilience for the RC shear-wall tall buildings located in high seismic regions. The yield ratio of isolation system is a critical design parameter for the seismically isolated structures. However,the research on the rational value of yield ratio for RC shear-wall tall buildings was rarely conducted. In this paper,based on three RC shear-wall tall buildings located in high seismic regions,the influence of yield ratio on the horizontal seismic absorbing coefficient and maximum bearing displacement are investigated using the refined finite element model. The rational ranges of the yield ratio of isolation system are recommended as 2. 0% ~ 2. 7%. The research outcome will provide reference for the design of the seismically isolated RC shear-wall tall buildings.
作者
刘立德
解琳琳
李爱群
尹传印
曾德民
Liu Li-de;Xie Lin-lin;Li Ai-qun;Yin Chuan-yin;Zeng De-min(Beijing Advanced Innovation Center for Future Urban Design,Beijing 100044,China;School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;School of Civil Engineering,Southeast University,Nanjing 210096,China)
出处
《工程抗震与加固改造》
北大核心
2018年第5期82-87,共6页
Earthquake Resistant Engineering and Retrofitting
基金
国家重点研发计划课题(2017YFC0703602)
北京未来城市设计高精尖创新中心(UDC2016030200)
博士启动项目(KYJJ2017005)
关键词
高层隔震结构
屈重比
减震系数
隔震层位移
high-rise isolated strucutre
yield ratio
damping coefficient
displacement of isolated layer
