萍乡奥体中心体育场结构设计  

Structural design of stadium of Pingxiang Olympic Sports Center

作　　者：向虎 龙浩 邱剑 程畅 任路 赵勤 XIANG Hu;LONG Hao;QIU Jian;CHENG Chang;REN Lu;ZHAO Qin(Citic General Institute of Architectural Design and Research Co.,Ltd.,Wuhan 430014,China;Wuhan Construction Engineering Quality Supervision Station,Wuhan 430014,China)

机构地区：[1]中信建筑设计研究总院有限公司,武汉430014 [2]武汉市建筑工程质量监督站,武汉430014

出　　处：《建筑结构》2022年第4期57-62,共6页Building Structure

摘　　要：萍乡奥体中心体育场由看台结构和钢结构屋盖组成。看台采用钢筋混凝土框架结构,支承钢结构屋盖的柱由钢管柱向下过渡为钢管混凝土叠合柱、钢筋混凝土柱从而优化基础;钢结构屋盖采用树状分杈柱支承的钢管桁架结构,屋盖结构由径向桁架、环向桁架、格栅桁架及支撑等部分构成。详细介绍了体育场看台及钢结构屋盖的荷载取值和主要构件的典型截面;对看台2层超长混凝土结构进行温度应力分析,并根据分析结果提出了相应的防裂措施;采用SAP2000软件对钢结构屋盖进行了考虑几何非线性及材料非线性的双非线性整体稳定性分析;对钢结构屋盖进行了抗连续倒塌分析;采用ANSYS软件对分杈柱节点进行了有限元分析。分析结果表明结构的各项指标均满足相关规范的要求;钢结构屋盖具有适当的抗连续倒塌能力;分杈柱节点构造安全可靠。The stadium of Pingxiang Olympic Sports Center consists of a stand structure and a steel structure roof.The stand adopted a reinforced concrete frame structure,and the columns supporting the steel structure roof were transitioned downward from steel tube columns to steel tube concrete laminated columns and reinforced concrete columns to optimize the foundation of optimization.The steel structure roof adopted a steel tube truss structure supported by tree-like bifurcated columns.The roof structure was composed of radial trusses,ring trusses,grid trusses and supports.The load values of the stadium stands and the steel structure roof and the typical cross-sections of the main components were introduced in detail.The temperature stress analysis of the 2-story super-long concrete structure of the stand was carried out,and the corresponding anti-cracking measures were put forward based on the analysis results.The overall stability analysis of the steel structure roof with dual nonlinearity considering geometric nonlinearity and material nonlinearity was analyzed using SAP2000 software.The continuous collapse resistance analysis of the steel structure roof was carried out.The finite element analysis of the bifurcated column joint was carried out using ANSYS software.The analysis results show that the various indicators of the structure meet the requirements of relevant codes;and the steel structure roof has an appropriate ability to resist continuous collapse.The structure of the bifurcated column joint is safe and reliable.

关 键 词：萍乡奥体中心体育场 钢结构屋盖 超长结构 树状分杈柱 桁架结构 稳定性分析 抗连续倒塌 

分 类 号：TU398.7􀆰[建筑科学—结构工程]