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某大跨度体育馆外墙倾斜布置,立面存在多次转折,结构竖向荷载传递途径较复杂。文中提出解决大跨度和立面不规则的结构措施,采用SATWE、PK、PREC等软件进行结构整体弹性分析,以及单榀预应力框架的承载力设计、裂缝和挠度验算及预应力筋配筋量计算等,结果表明本工程采用的变截面预应力框架结构布置方式是安全可靠的,可使大跨度不规则框架结构正常使用极限承载力满足规范要求。
Some large-span gymnasiums are inclined and the façades have many transitions, and the vertical load transmission structure is complex. In this paper, the structural measures to solve the problem of long-span and irregular elevation are proposed. The overall structural elasticity analysis is carried out by software such as SATWE, PK and PREC, and the bearing capacity design, crack and deflection checking, prestress tendon reinforcement The results show that the arrangement of variable cross-section prestressed frame structure used in this project is safe and reliable, and the ultimate bearing capacity of normal long-span irregular frame structure can meet the specifications.