芦山县人民医院门诊综合楼隔震结构分析与设计*
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（1 广州大学土木工程学院， 广州 510006； 2 中煤科工集团重庆设计研究院， 重庆 400016）［摘要］2013年4月20日，四川芦山县发生7级地震，采用隔震设计的芦山县人民医院门诊综合楼在地震中隔震效果显著，没有发生破坏。介绍工程按《建筑抗震设计规范》（GB 50011—2001）（2008版）进行隔震分析与设计的内容，包括隔震支座选型与布置，隔震与非隔震结构非线性时程分析，隔震层及下部结构设计与构造；按《建筑抗震设计规范》（GB 50011—2010）对设计进行复核，介绍了工程在四川芦山地震中的反应和减震效果。实际地震中的减震效果表明：按《建筑抗震设计规范》（GB 50011—2001）（2008版）设计的隔震结构设计是合理的，结构在罕遇地震作用下基本为弹性，达到结构抗震设防目标的要求，且明显提高了结构的抗震性能；地震中隔震支座和支墩都没有出现破坏，隔震层构件设计是合理的；上部结构与挡土墙没有发生碰撞，隔震沟宽度设计满足要求。［关键词］芦山地震; 隔震结构; 层间位移角; 抗震性能中图分类号：TU352.1 文献标识码：A 文章编号：1002-848X(2013)24-0023-05Analysis and design of seismic isolation structure in outpatient building of the Lushan County People’s HospitalZhou Yun1, Wu Congxiao1, Zhang Chongling2, Yang Guangming2(1 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China; 2 China Coal Technology & Engineering Group Chongqing Design & Research Institute, Chongqing 400016, China)Abstract: During the Richter 7.0 earthquake happened in Lushan County on April 20, 2013, there was no damage in the outpatient building of People’s Hospital designed with seismic isolation technology. The analysis and design contents of the structure by Code for seismic design of buildings (GB 50011—2001)(2008 version) were introduced, including selection and arrangement of isolation bearings, nonlinear time-history analysis of isolation layer and non-isolation layer, structural design and seismic measurements of the isolation layer and lower layers. The design was checked by the Code for seismic design of buildings (GB 50011—2010). The seismic performance of the building in the earthquake was introduced. The results show that the seismic isolation structure designed by Code for seismic design of buildings (GB 50011—2001)(2008 version) is feasible. The structure keeps elastic under rare earthquake and could reach seismic fortification goal requirements. The seismic performance of the structure is significantly improved. The isolation bearings and buttress have no damage under the earthquake, which indicates that the design of the members of isolation layer is reasonable. Isolation groove width meets the requirements and no pounding occurs at the isolation level between the superstructure and retaining wall.Keywords: Lushan earthquake; seismic isolation structure; inter-story drift; seismic performance*广东省自然科学基金团队项目(8351009101000001)，羊城学者项目（10A026S）。作者简介：周云,教授,博士生导师,Email:zhydxs@163.com。参考文献［1］周福霖.工程结构减震控制［M］.北京:地震出版社,1997.［2］北京金土木软件技术有限公司.ETABS中文版使用指南［M］.北京:中国建筑工业出版社，2004.［3］GB 50011—2001 建筑抗震设计规范［S］. 2008版.北京：中国建筑工业出版社，2008.［4］GB 50011—2010 建筑抗震设计规范［S］.北京：中国建筑工业出版社，2010.［5］CECS 126∶2001 叠层橡胶支座隔震技术规程［S］. 北京：中国工程建设标准化协会，2001.
