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。
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 couM reach seismic fortification goal requirements. The seismic performance of the structure is significantly improved. The isolation beariugs 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.
出处
《建筑结构》
CSCD
北大核心
2013年第24期23-27,共5页
Building Structure
基金
广东省自然科学基金团队项目(8351009101000001)
羊城学者项目(10A026S)
关键词
芦山地震
隔震结构
层间位移角
抗震性能
Lushan earthquake
seismic isolation structure
inter-story drift
seismic performance
作者简介
周云，教授，博士生导师，Email：zhydxs@163．com。
