- 摘 要
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(北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045)
［摘要］星火TOD交通樞紐地下5層、地上2層，包括站廳層、站臺層、樞紐大廳等?？紤]了地下結(jié)構(gòu)與地上結(jié)構(gòu)與巖土的非線性動力特征，采用了反應(yīng)位移法對地鐵站部位進(jìn)行抗震設(shè)計(jì)，并采用了巖土與結(jié)構(gòu)三維動力時(shí)程法進(jìn)行地下結(jié)構(gòu)整體抗震校核設(shè)計(jì)，更加真實(shí)地反映了巖土的動力特性和結(jié)構(gòu)的空間效應(yīng)。樞紐大廳鋼結(jié)構(gòu)采用網(wǎng)格巨柱、斜支撐及周邊鋼柱支承的單層菱形網(wǎng)格鋼網(wǎng)殼體系，采用有限元分析方法、考慮雙非線性的極限承載力分析等方法進(jìn)行設(shè)計(jì)。結(jié)果表明：通過上述設(shè)計(jì)方法可以保證結(jié)構(gòu)的剛度、承載力、穩(wěn)定性均滿足規(guī)范要求。
［關(guān)鍵詞］TOD交通樞紐；地下抗震；網(wǎng)格巨柱；巖土與結(jié)構(gòu)三維動力時(shí)程法
中圖分類號：TU354 文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2021)19-0013-05
Structural design of Xinghuo TOD transportation hub
SHI Yi, LI Huafeng, LI Weiqiang, SHU Weinong, ZHOU Gang, WANG Yuan, ZHOU Zhongfa, CUI Jianhua
(Beijing Institute of Architectural Design, Beijing 100045， China)
Abstract:The project of Xinghuo TOD transportation hub has five floors underground and two floors above ground, including station hall floor, platform floor, hub hall, etc. The nonlinear dynamic characteristics of underground structure, aboveground structure and geotechnical were considered. The response displacement method was used for the seismic design of the subway station, and the three-dimensional dynamic time history method of geotechnical and structure was used for the overall seismic check design of the underground structure, which more truly reflects the dynamic characteristics of geotechnical and the spatial effect of structure. The steel structure of the hub hall adopts the single-layer diamond grid steel reticulated shell system supported by grid giant columns, inclined supports and surrounding steel columns. The finite element analysis and ultimate bearing capacity analysis considering dual nonlinearity were adopted for the design. The results show that the stiffness, bearing capacity and stability of the structure can meet the requirements of the standard through the above design methods.
Keywords:TOD transportation hub； underground seismic； grid giant column； three-dimensional dynamic time history method of geotechnical and structure
作者簡介：石異，碩士，教授級高級工程師，一級注冊結(jié)構(gòu)工程師，Email：369152281@qq.com。
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