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孝感市民之家采用由钢桁架组成的钢-混凝土混合结构体系,从3层楼面开始四面悬挑。在满足建筑功能的前提下,对多种结构方案进行了承载能力和位移比选,得到了较优的结构体系。采用性能化方法对该结构进行设计,并对悬挑构件的支撑系统进行了中震弹性分析,满足中震弹性、大震不屈服要求;利用MIDAS Gen软件对结构进行静力弹塑性分析,以了解结构在大震作用下的性能,保证结构实现多道抗震防线要求;为防止悬挑结构出现连续倒塌,采用SAP2000软件模拟悬挑杆件失效,进行了抗连续倒塌分析;对楼面大开洞采取了有针对性的加强构造措施。
Xiaogan Citizens’ House adopts a steel-concrete hybrid structural system composed of steel trusses, and cantilevered over three floors. Under the premise of satisfying the building function, the bearing capacity and displacement ratio of many kinds of structural schemes were optimized and the optimal structural system was obtained. The structure was designed by performance method, and the elasto-elasto-elastic analysis of the supporting system of cantilevered members was carried out to meet the requirements of moderate elasticity and great earthquake without yielding. The static elastic-plastic analysis of the structure was carried out by using MIDAS Gen software To understand the structure under the action of a large earthquake to ensure that the structure to achieve multi-seismic anti-line requirements; In order to prevent the continuous collapse of cantilevered structures, the use of SAP2000 software to simulate the failure of cantilevered pieces, anti-continuous collapse analysis; Hole to take targeted measures to strengthen the structure.