论文部分内容阅读
预应力钢絲束混凝土桁架在国內外其他单位早已采用,但近十多年来因料源问題多未使用,我局自70年以来有一批高强度钢絲供应,开始在两处车辆段修车库工程中采用这种结构。我们先后共制做了多腹杆拱形和梯形两种桁架,拱形架经济指标较好,但屋面防水处理有些问題,后来我们大多采用梯形桁架,因我们仅对拱形架作了荷载试验,可以反映出一部分受力情况,现将多腹杆拱形架的设计与施工介绍如下。一、设计 1. 荷载屋面标准荷载(包括保溫层、找平层、防水层、屋面板自重、支撑系统及活荷载)和屋
Prestressed steel truss truss has long been used by other units at home and abroad, but more than a decade of material source problems have not been used, the Bureau has a number of high-strength steel wire supply since 1970, began to repair two vehicles Garage construction using this structure. We have co-made a multi-web arched and trapezoidal trusses, arches economic indicators better, but some problems with the roof waterproofing, and later we mostly use trapezoidal truss, because we only made an arched load test , Can reflect part of the force situation, now the design and construction of multi-web arch arches are described below. First, the design 1 load standard roof load (including insulation, leveling layer, waterproof layer, roof weight, support system and live load) and housing