张弦管桁架结构张拉力优化分析

The Optimization Analysis of Tension for Truss String Structure

张弦管桁架结构是预应力钢结构中的自平衡体系结构,数量众多的拉索是构成空间结构的关键。拉索预应力导入过程对结构的施工过程和最终受力形态产生不可忽略的影响,以鹤壁市体育馆张弦管桁架钢屋盖为例,应用张力补偿法进行拉索张拉控制力分析和张拉批次划分的分析,探寻其在施工过程中和施工完成后对结构受力状态的影响。

Truss string structure is one of the prestressed steel structure in the self-balancing architecture,and a large number of cables is a form of spatial structure of the key. The prestress import process on thestructure of the construction process and final force form can not be ignored. Taking the Hebi Stadiumchord truss steel roof for example, tension compensation method was applied for cable tensioning forcescontrol analysis and tension batch analysis, to explore the structure stress state in the construction processand completion of the construction.