某体育馆钢屋盖的结构设计分析  

Structural Design of Steel Roof of a Sports Center Gymnasium

作　　者：黄秀亮 赵明 林家民 汪胤雅 HUANG Xiu-liang;ZHAO Ming;LIN Jia-min;WANG Yin-ya(First Design and Research Institute MI China Co.Ltd.,Hefei 230601,China;Zhejiang Jinggong Steel Building Group Co.Ltd.,Shaoxing 312030,China)

机构地区：[1]中机第一设计研究院有限公司,合肥230601 [2]浙江精工钢结构集团有限公司,浙江绍兴312030

出　　处：《工程建设与设计》2022年第3期29-31,共3页Construction & Design for Engineering

摘　　要：某县级体育馆,下部为混凝土框架结构,顶部采用钢屋盖。体育馆钢屋盖呈椭圆形,长约132 m,宽约91 m,采用双向桁架结构体系,桁架最大厚度约8.0m,最大悬挑长度为15m。本工程采用有限元分析软件MidasGen对钢屋盖和下部框架进行了整体结构分析,考虑恒、活、风、温度、地震等荷载的不利组合,根据计算结果,体育馆钢屋盖的应力、变形及稳定性指标均能满足规范要求,取得了预期的效果。A county-level gymnasium has a concrete frame structure at the lower part and a steel roof at the top. The steel roof of the gymnasium is oval, with a length of about 132 meters and a width of about 91 meters. It adopts a two-way truss structure system. The maximum thickness of the truss is about 8.0 meters, and the maximum cantilever length is 15 m. In this project, finite element analysis software Midas Gen is used to analyze the whole structure of steel roof and lower frame, considering the unfavorable combination of constant, live, wind, temperature and earthquake loads. According to the calculation results, the stress, deformation and stability indexes of steel roof of gymnasium can meet the requirements of the code, and the expected results have been achieved.

关 键 词：桁架结构 应力分析 大跨空间结构 稳定分析 

分 类 号：TU754[建筑科学—建筑技术科学] TU245.2