钢拉索结构抗风效果分析

介绍了钢拉索支撑结构的两种形式:单层索系、索桁架.目前单层拉索体系在国内少有论述,本文对单层体系提出了一些看法.对钢拉索结构进行了静力分析,提出了计算假定.对影响钢拉索点式玻璃幕墙抗风效果的几个因素进行了分析:结构形式、索的断面积、预应力.首次分析了预应力在不同拉索结构抗风载中的作用,提出了把预应力与因应变产生的应力分开考虑的方法,并对不锈钢拉索桁架进行了实体构件实验,证明实测值与计算值较好地相符.

Analysis on the Resisting Wind Property of Steel Pulling Cable System Structure

In this paper two forms of steel pulling cable systems are discussed:the single suspend cable system and the cable truss. Few discussions have been posed of the single suspend cable system at present, and some views about this system are put forward in this article. Static analysis about the steel pulling cable system is processed and assumptions are presented. This article analyseds several factors influencing resisting wind property, such as the form of structure, the cross section of the cable,and the prestress. The function of the prestress influencing resisting wind property in different steel cable systems is firstly raised. At the same time the method of separating prestress from the tress as a result of strain isspoken. The experiment of real elements of the stainless steel cable truss shows that the tested figures are just confined with the calculated ones.