- 摘 要
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(1 西安建筑科技大學(xué)土木工程學(xué)院，西安 710055； 2 中冶置業(yè)重慶有限責(zé)任公司，重慶 400015)
［摘要］列舉了汶川地震中都江堰市某在建工程和東方汽輪廠檔案樓等框架結(jié)構(gòu)中的樓梯震害，分析了框架結(jié)構(gòu)中樓梯的地震作用，揭示了梯段破壞和梯梁剪切破壞的形成原因。指出框架結(jié)構(gòu)底層樓梯設(shè)計(jì)時(shí)必須要考慮地震影響，并應(yīng)立足于結(jié)構(gòu)整體模型分析其受力。最后給出了樓梯結(jié)構(gòu)抗震設(shè)計(jì)的保證措施，供設(shè)計(jì)參考。
［關(guān)鍵詞］框架結(jié)構(gòu)；樓梯；震害；抗震設(shè)計(jì)
Earthquake damage analysis and design strategy on stairs of frame structures
Shen Yuekui1, Zhang Tao2, Wang Wei1(1 College of Civil Engineering, Xi’an Architecture & Technology University, Xi’an 710055, China；2 MCC Real Estate Chongqing Co., Ltd., Chongqing 400015, China)
Abstract:Some types of stair damage caused by Wenchuan Earthquake in frame structures were presented. The seismic response of stairs was studied by concept analysis and calculation. And how the stair-plate is broken and the stair-beam is destroyed were explained. It suggests that the effect of the earthquake on stairway should be analyzed by entirety structural model, which can be chosen to design the stair component. Some measures are proposed to guarantee the stairs capacity to resist earthquake.
Keywords:frame structure; stair; earthquake damage; anti-earthquake design
作者簡介：申躍奎，博士，副教授，一級注冊結(jié)構(gòu)工程師，Email:ykshen129@126.com。
參考文獻(xiàn)
［1］李政寬，等. 土城市延吉街355～359號地震破壞［OL］. http://www.ncree.gov.tw/eq0331/tucheng-1.htm.
［2］AHMADIZADEHA M., SHAKIB H. On the December 26, 2003, southeastern Iran earthquake in Bam region［J］. Engineering Structures, 2004, 26(8):1055-1070.
［3］GB50010—2002混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2002.
［4］GB50011—2001建筑抗震設(shè)計(jì)規(guī)范(2008年版)［S］. 北京：中國建筑工業(yè)出版社，2008.
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