偏心支撐框架設(shè)計新進(jìn)展
蔡益燕1，錢稼茹2，郁銀泉1
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（1 中國建筑標(biāo)準(zhǔn)設(shè)計研究院，北京 100048；2 清華大學(xué)土木系，北京 100084）［摘要］介紹了美國新標(biāo)準(zhǔn)對偏心支撐框架設(shè)計的修訂，并對我國抗震規(guī)范和有關(guān)規(guī)程對偏心支撐框架的修訂作了說明。與過去的規(guī)定相比，新規(guī)定對構(gòu)件的內(nèi)力增大系數(shù)有明顯降低。說明了降低的原因,并介紹了偏心支撐框架構(gòu)件和連接設(shè)計的有關(guān)要求和應(yīng)考慮的問題，可供設(shè)計人員參考。［關(guān)鍵詞］偏心支撐框架；消能梁段；內(nèi)力增大系數(shù)中圖分類號：TU391.5文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2011)04-0007-04Advance in eccentrically braced frame designCai Yiyan1, Qian Jiaru2, Yu Yinquan1(1 China Institute of Building Standard Design and Research, Beijing 100048,China；2 Department of Civil Engineering, Tsinghua University,Beijing 100084, China)Abstract:Renovations of eccentrically braced frame(EBF) design in AISC341-05 were mentioned, and revisions of EBF design in newly published Code for seismic design of buildings were also presented. Compared with former regulations, obvious decrease in enhancement factors of member internal force can be seen. The reasons of decrease were presented. The related design of members and connections design were introduced,which can be reference for engineer.Keywords:eccentrically braced frame; link; enhancement factors of member internal force作者簡介：蔡益燕，高級工程師，一級注冊結(jié)構(gòu)工程師，Email:caiyy518@tom.com。參考文獻(xiàn)［1］AISC341-97 Seismic provisions for structural steel buildings［S］. 1997.［2］AISC341-05 Seismic provisions for structural steel buildings［S］. 2005.［3］GB50011—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.［4］GB50011—2001建筑抗震設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2001.［5］JGJ99—98高層民用建筑鋼結(jié)構(gòu)技術(shù)規(guī)程［S］.北京：中國建筑工業(yè)出版社，1998.
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