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（中南建筑設(shè)計(jì)院股份有限公司， 武漢 430071）

［摘要］贛州西站主站房為“橋建合一”的線上式高架站房，主體結(jié)構(gòu)采用型鋼混凝土框架結(jié)構(gòu)，站房屋面采用空間鋼網(wǎng)格結(jié)構(gòu)，其中突出正立面鋼結(jié)構(gòu)采用鋼網(wǎng)格筒+空間桁架結(jié)構(gòu)。采用有限元軟件ABAQUS對(duì)整體結(jié)構(gòu)進(jìn)行動(dòng)力彈塑性時(shí)程分析，其中預(yù)應(yīng)力構(gòu)件采用等效荷載法進(jìn)行分析，并在此基礎(chǔ)上對(duì)關(guān)鍵節(jié)點(diǎn)進(jìn)行有限元分析。分析結(jié)果表明，罕遇地震作用下，結(jié)構(gòu)構(gòu)件性能均滿足預(yù)期性能目標(biāo)，關(guān)鍵節(jié)點(diǎn)處于彈性，僅局部樓板損傷明顯。

［關(guān)鍵詞］贛州西站； 高架站房； 鋼網(wǎng)格筒+空間桁架結(jié)構(gòu)； 預(yù)應(yīng)力； 性能水準(zhǔn)； 等效荷載法

中圖分類(lèi)號(hào)：TU318文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2020)23-0064-07

Dynamic elastoplastic analysis of the main structure of Ganzhou West Railway Station

ZHANG Shen, WANG Jie, CHENG Ming, DING Shiwei, ZHANG Wei, WEI Jian, HUANG Guosheng

(Central-South Architectural Design Institute Co, Ltd., Wuhan 430071, China)

Abstract:The main station building of Ganzhou West Railway Station is an online elevated station building with “integration of bridge and construction”. The main structure adopts steel concrete frame structure, and the station roof adopts spatial steel grid structure. The steel structure of the prominent facade adopts steel grid tube+spatial truss structure. The finite element software ABAQUS was used to conduct dynamic elastoplastic time history analysis of the overall structure, in which the prestressed components were analyzed by the equivalent load method, and the key nodes were analyzed by finite element analysis on this basis. The analysis results show that under rare earthquakes, the performance of structural members can meet the expected performance goals, the key nodes are elastic, and only local floor damage is obvious.

Keywords:Ganzhou West Railway Station; elevated station; steel grid tube+spatial truss structure; prestressed; performance level; equivalent load method

*住房與城鄉(xiāng)建設(shè)部建設(shè)科技計(jì)劃項(xiàng)目（2017-K5-014）。

作者簡(jiǎn)介：張慎，博士，教授級(jí)高級(jí)工程師，Email: zhangshen202@163.com； 通信作者：王杰,碩士,工程師Email: 779777137@qq.com。