- 摘 要
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（1 青島市建設(shè)工程施工圖設(shè)計審查有限公司， 青島 266072； 2 青島酒店管理職業(yè)技術(shù)學院， 青島 266100； 3青島騰遠設(shè)計事務所有限公司， 青島 266071）
［摘要］某大型商業(yè)結(jié)構(gòu)位于地鐵車輛段結(jié)構(gòu)頂蓋上部，屬于地鐵上蓋物業(yè)。對該大型商業(yè)結(jié)構(gòu)設(shè)計中遇到的問題進行分析研究，提出可行的解決方案。通過結(jié)構(gòu)柱網(wǎng)的合理布置，使商業(yè)結(jié)構(gòu)豎向構(gòu)件與地鐵豎向構(gòu)件盡可能對齊。當商業(yè)結(jié)構(gòu)的結(jié)構(gòu)柱與下方地鐵結(jié)構(gòu)柱偏心較小時，將車輛段結(jié)構(gòu)頂蓋視為地基，商業(yè)結(jié)構(gòu)柱采用獨立基礎(chǔ)，不考慮與下部車輛段結(jié)構(gòu)頂蓋共同受力。當商業(yè)結(jié)構(gòu)柱與下方地鐵結(jié)構(gòu)柱偏心較大時，車輛段結(jié)構(gòu)頂蓋與商業(yè)結(jié)構(gòu)柱結(jié)合位置采用疊合梁的受力模型，考慮與下部車輛段頂蓋共同受力。采用ANSYS 15.0軟件對不同的偏心情況進行力流分析研究，得出地鐵頂蓋考慮不同受力情況的偏心臨界值。根據(jù)力流分析得到當偏心值小于1.5m時選用獨立基礎(chǔ)的結(jié)構(gòu)模型，當偏心值大于1.5m時采用疊合梁的受力模型。豎向構(gòu)件對疊合構(gòu)件中的疊合面產(chǎn)生的水平剪切力將全部由箍筋承擔。分析結(jié)果表明，商業(yè)結(jié)構(gòu)及車輛段頂蓋均能保證結(jié)構(gòu)安全。
［關(guān)鍵詞］地鐵上蓋物業(yè)； 偏心轉(zhuǎn)換； 力流分析； 疊合面水平剪力
中圖分類號：TU318-1文獻標識碼：A文章編號：1002-848X(2020)16-0029-05
Analysis and research on the connection between the large-scale commercial structure and the structure of metro depot
WANG Yu1, HAN Nana2, WANG Peng3, DING Xinhai3, JING Yanqing3, LI Qiang3, DENG Hao3, TIAN Liu3
（1 Qingdao Construction Engineering Construction Drawing Design Examination Co., Ltd, Qingdao 266072, China; 2 Qingdao Vocational and Technical College of Hotel Management, Qingdao 266100, China;3 Qingdao Teng Yuan Design Institute Co., Ltd, Qingdao 266071, China）
Abstract:A large-scale commercial structure is located in the upper cover part of the structural roof of the metro depot, which belongs to the metro upper cover property. The problems encountered in the design of the large-scale commercial structure were analyzed and studied, and feasible solutions were put forward. Through the reasonable arrangement of structural column grid, the vertical members of commercial structure and the metro structure were aligned as much as possible. When the structural column of commercial structure and the metro structural column below were relatively small, the roof of the depot structure was regarded as the foundation, and the commercial structural column adopted the independent foundation, and the joint force with the structural top cover of the lower depot was not considered. When the eccentricity between the commercial structure column and the metro structure column was large, the composite beam stress model was adopted for the joint position of the depot structure roof and the commercial structure column, considering the joint force with the lower depot roof. ANSYS 15.0 software was used to analyze the force flows under different eccentric conditions, and the critical value of eccentricity of metro roof was obtained considering different stress conditions. According to the force flow analysis, when the eccentricity was less than 1.5m, the structure model of independent foundation was selected; when the eccentricity was greater than 1.5m, the stress model of composite beam was adopted. The horizontal shear force produced by the vertical member on the superimposed surface of the composite member were borne by the stirrup. The analysis results show that both commercial structure and depot roof can ensure the structural safety.
Keywords:metro upper cover property; eccentric conversion; force flow analysis; horizontal shear force on combined interface
作者簡介：王宇，碩士，高級工程師，Email: 291941569@qq.com；通訊作者：田柳，碩士，Email:John_Tian@163.com。
