蘆山縣人民醫(yī)院門診綜合樓隔震結(jié)構(gòu)分析與設(shè)計*
周云1, 吳從曉1, 張崇凌2, 楊光明2
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（1 廣州大學(xué)土木工程學(xué)院， 廣州 510006； 2 中煤科工集團(tuán)重慶設(shè)計研究院， 重慶 400016）［摘要］2013年4月20日，四川蘆山縣發(fā)生7級地震，采用隔震設(shè)計的蘆山縣人民醫(yī)院門診綜合樓在地震中隔震效果顯著，沒有發(fā)生破壞。介紹工程按《建筑抗震設(shè)計規(guī)范》（GB 50011—2001）（2008版）進(jìn)行隔震分析與設(shè)計的內(nèi)容，包括隔震支座選型與布置，隔震與非隔震結(jié)構(gòu)非線性時程分析，隔震層及下部結(jié)構(gòu)設(shè)計與構(gòu)造；按《建筑抗震設(shè)計規(guī)范》（GB 50011—2010）對設(shè)計進(jìn)行復(fù)核，介紹了工程在四川蘆山地震中的反應(yīng)和減震效果。實(shí)際地震中的減震效果表明：按《建筑抗震設(shè)計規(guī)范》（GB 50011—2001）（2008版）設(shè)計的隔震結(jié)構(gòu)設(shè)計是合理的，結(jié)構(gòu)在罕遇地震作用下基本為彈性，達(dá)到結(jié)構(gòu)抗震設(shè)防目標(biāo)的要求，且明顯提高了結(jié)構(gòu)的抗震性能；地震中隔震支座和支墩都沒有出現(xiàn)破壞，隔震層構(gòu)件設(shè)計是合理的；上部結(jié)構(gòu)與擋土墻沒有發(fā)生碰撞，隔震溝寬度設(shè)計滿足要求。［關(guān)鍵詞］蘆山地震; 隔震結(jié)構(gòu); 層間位移角; 抗震性能中圖分類號：TU352.1 文獻(xiàn)標(biāo)識碼：A 文章編號：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*廣東省自然科學(xué)基金團(tuán)隊(duì)項(xiàng)目(8351009101000001)，羊城學(xué)者項(xiàng)目（10A026S）。作者簡介：周云,教授,博士生導(dǎo)師,Email:zhydxs@163.com。參考文獻(xiàn)［1］周福霖.工程結(jié)構(gòu)減震控制［M］.北京:地震出版社,1997.［2］北京金土木軟件技術(shù)有限公司.ETABS中文版使用指南［M］.北京:中國建筑工業(yè)出版社，2004.［3］GB 50011—2001 建筑抗震設(shè)計規(guī)范［S］. 2008版.北京：中國建筑工業(yè)出版社，2008.［4］GB 50011—2010 建筑抗震設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2010.［5］CECS 126∶2001 疊層橡膠支座隔震技術(shù)規(guī)程［S］. 北京：中國工程建設(shè)標(biāo)準(zhǔn)化協(xié)會，2001.
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