某高烈度区大跨度复式高层体育馆结构设计与分析

STRUCTURAL DESIGN AND ANALYSIS OF A LARGE-SPAN DUPLEX HIGH-RISE GYMNASIUM IN A HIGH INTENSITY ZONE

以某实际工程为例,分析高烈度区大跨度复式高层体育馆设计的难度。从钢管混凝土柱长细比验算、双向钢桁架建模计算、楼盖舒适度分析、混凝土梁与钢管混凝土柱的关键节点等内容,针对分析软件和规范条文中存在的问题进行了梳理和讨论。分析结果表明,整体结构刚度布置合理,结构方案整体可行;钢桁架楼盖结构刚度大、施工便捷、易满足楼盖舒适度要求;改进后的钢筋混凝土梁与钢管混凝土柱节点安全可靠、美观、便于施工。

With an actual project as an example,the difficulty of designing a large-span duplex high-rise gymnasium in high intensity zone is analyzed.The problems in the analysis software and code provisions are sorted out and discussed from the checking calculation of length to slenderness ratio of steel pipe concrete column,modeling calculation of two-way steel truss,analysis of comfort of floor cover,key nodes of concrete beam and steel pipe concrete column,etc.The analysis results indicate that the overall structural stiffness arrangement is reasonable and the structural scheme is feasible as a whole;the structural stiffness of the steel truss floor cover is large,convenient to construct and easy to meet the comfort requirements of the floor cover,the improved nodes of reinforced concrete beams and steel pipe concrete columns are safe,reliable,beautiful and easy to construct.