作　　者： ; ; ; ;

机构地区： 中南建筑设计院股份有限公司

出　　处： 《建筑结构》 2011年第7期45-49,共5页

摘　　要： 西安北站站台雨棚采用钢管混凝土柱与钢框架梁及钢拉杆组成的斜拉预应力钢框架结构,对钢拉杆施加一定的预应力作为梁的弹性支点。工程采用允许钢拉杆在风负压下退出受拉状态的设计思想,以减小拉杆拉力过大带来的负作用。作为风敏感体系,通过风洞试验和风振分析为结构的抗风设计提供了科学的依据。介绍了该工程的结构选型与布置、节点设计、温度作用分析及结构分析。 Cable-supported prestressed steel frame structure,which consists of concrete-filled column,steel beam and steel tie rod,is used for canopy of Xi＇an North Railway Station.Prestressed steel tie rod is the elastic support of beams.The steel tie rod is permitted to do not work in wind suction in order to reduce the negative effects made by large tension force of steel tie rod.The structure is sensitive to wind load,so wind tunnel test and wind-induced response analysis had been adopted to provide scientific basis for wind-resistant design.The structural scheme selection and layout,joint design,thermal actions and structural analysis were presented.

关 键 词： 西安北站 站台雨棚 预应力 钢拉杆 钢框架 销轴节点 温度作用

领　　域： [建筑科学]