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（北京市建筑設(shè)計(jì)研究院， 北京 100045）

［摘要］廣州新客站無(wú)站臺(tái)柱雨棚為復(fù)雜大跨度預(yù)應(yīng)力索拱空間鋼結(jié)構(gòu)。采用有限元軟件MIDAS/Gen對(duì)包含下部橋梁結(jié)構(gòu)和上部鋼結(jié)構(gòu)的整體模型進(jìn)行了罕遇地震作用下三向地震波輸入的彈塑性時(shí)程分析，研究了結(jié)構(gòu)的位移、應(yīng)力、內(nèi)力等動(dòng)力反應(yīng)，考察了屋頂鋼結(jié)構(gòu)的彈塑性發(fā)展歷程。分析結(jié)果表明，無(wú)站臺(tái)柱雨棚鋼結(jié)構(gòu)在罕遇地震作用下進(jìn)入塑性的程度很小，未發(fā)生大的變形，具有良好的抗震性能。

［關(guān)鍵詞］廣州新客站;復(fù)雜大跨度空間結(jié)構(gòu);彈塑性時(shí)程分析;抗震性能

Elasto-plastic time-history analysis on non-platform-column canopy of New Guangzhou Railway Station

Xu Fujiang, Zhen Wei, Zhao Ming, Liu Jialing(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:The roof structure of non-platform-column canopy of New Guangzhou Railway Station is a complex large-span space structure. With FEM analysis program MIDAS/Gen, elasto-plastic time-history analysis of the integral structures subjected to three-dimensional rare earthquakes is conducted, and dynamic responses of the displacement, stress and force are studied, and the progress of elasto-plastic development is researched. The results show that the plastic degree of non-platform-column structure under rare earthquake is very low and the deformation is small, and the seismic performance is good.

Keywords:New Guangzhou Railway Station; large-span space structure; elasto-plastic time-history analysis; seismic performance

作者簡(jiǎn)介：徐福江，博士，高級(jí)工程師，Email：xufj@biad.com.cn。

參考文獻(xiàn)

［1］盛平，柯長(zhǎng)華，甄偉，等. 廣州新客站結(jié)構(gòu)總體設(shè)計(jì) ［J］. 建筑結(jié)構(gòu),2009，39（12）.

［2］甄偉，馮健，盛平，等. 廣州新客站雨棚鋼結(jié)構(gòu)設(shè)計(jì)及索拱實(shí)驗(yàn)［J］. 建筑結(jié)構(gòu),2009，39（12）.

［3］MIDAS技術(shù)手冊(cè)［Ｍ］.

［4］GB50011—2001建筑抗震設(shè)計(jì)規(guī)范（2008年版）［S］.北京：中國(guó)建筑工業(yè)出版社，2008.