遂宁市体育中心游泳馆预应力张弦桁架屋架钢结构拉索施工技术

Construction Technology of Steel Roof Truss String Cable of Suining City Sports Center Natatorium

介绍四川省遂宁市体育中心游泳馆钢屋盖拉索预应力的张拉技术及施工安装技术。在主桁架和封边完成后进行拉索的张拉,采用预紧→25%→50%→75%→90%→100%分级张拉的方法,对拉索的张拉力及形变进行有效的控制,保证桁架结构拉索张拉力和跨中竖向位移的精准度。

It is stated that the installation and roofprestressed tension technology of steel roof truss string cable of Suining city sports center nataoriun.After the completion of tension of for cable in the main struss and the edge of cable,It used pretight→25%→50%→75%→90%→100%for the grading tension method,for the effective control of the cable tension force and deformation,making sure the struss cable tensile force and vertical displacement of mid spanaccuracy.