摘要
泉州市体育馆的椭球型屋盖采用张弦桁架支撑壳体。重点介绍了该结构在分析和设计中的关键问题:利用NURBS造型技术生成泉州体育馆非规则屋盖曲面、结构体系布置;结合工程实例提出了张弦桁架结构拉索初始预应力取值的若干原则以及合理处理支座水平推力的方法;利用弹塑性方法分析其稳定性和极限承载力以说明张弦结构优异的力学性态。
As a kind of new hybrid structures, hybrid-string structure is applied widely in many large-span structures these years because of its good performance. The roof structure of Quanzhou Gym is a typical kind of hybrid-string structure. It introduces several technical problems of structural analysis and design, including form design by NURBS method, structural system design, how to determinate initial pre-stress, how to deal with the lateral force in the bearings, and ultimate bearing capacity analysis.
出处
《建筑结构》
CSCD
北大核心
2008年第2期23-28,共6页
Building Structure
关键词
张弦桁架
支撑壳体
形态设计
初始预应力度分析
极限承载力
braced hybrid-string shell
form design
initial pre-stress analysis
ultimate bearing capacity
