- 摘 要
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（1 混凝土及預應力混凝土結(jié)構(gòu)教育部重點實驗室， 南京 211189；2 東南大學土木工程學院， 南京 211189）
［摘要］對某高校體育館大跨度鋼結(jié)構(gòu)屋蓋進行了不同結(jié)構(gòu)體系比選，最終采用空間桁架結(jié)構(gòu)體系。采用SAP2000對體育館整體結(jié)構(gòu)進行建模，對比分析了兩個屋蓋結(jié)構(gòu)布置方案的靜力性能、動力特性和用鋼量指標，結(jié)果表明：通過優(yōu)化結(jié)構(gòu)整體布置，在用鋼量更低的情況下，明顯提升了結(jié)構(gòu)各項性能。采用ABAQUS軟件對結(jié)構(gòu)關(guān)鍵節(jié)點進行有限元分析，并基于分析結(jié)果對節(jié)點采取局部加強措施，保證了結(jié)構(gòu)安全。
［關(guān)鍵詞］鋼屋蓋； 空間桁架結(jié)構(gòu)； 桁架受力性能； 節(jié)點分析
中圖分類號：TU318, TU391文獻標識碼：A文章編號：1002-848X(2020)09-0037-07
Comparison and optimization of design schemes for steel structure roof of a university gymnasium
SHU Ganping1,2, YAN Xin1,2
(1 The Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Nanjing 211189, China; 2 School of Civil Engineering, Southeast University, Nanjing 211189, China)
Abstract:Through the comparison of different structural systems, the large-span steel structure roof of a university gymnasium finally adopts the space truss structure system. The SAP2000 software was adopted to build the model of whole structure of the gymnasium, the static performance, dynamic characteristics and steel consumption of the two roof structure arrangements were compared and analyzed. The results show that the structural performance is significantly improved and the steel consumption is lower by optimizing the overall layout of the structure. ABAQUS software was used to analyze the mechanical behaviors of the key joints of the structure. Based on the analysis results, local strengthening measures were taken on the joints to ensure the structural safety.
Keywords:steel roof; space truss structure; mechanical performance of truss; joint analysis
作者簡介：舒贛平，博士，教授，博士生導師，Email：sgp0818@vip.sina.com。
