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我公司承建的抚州体育馆屋盖工程网架结构为双向正交正放四角锥板架合一网架,短向跨度为45m。根据结构特点和施工条件,我们采用了地面组合四角锥体,高空平台组装条状单元网架,顶推累积滚动滑移的施工方法。经实践证明此方案是切实可行的,也较为经济。一、工程概况抚州体育馆属中型体育馆,内设观众席4000个。网架平面尺寸为59×45.2=2667m~2。下弦221个空心钢球节点与弦杆组成192个网格;上弦是400号钢筋混凝土带肋板,并与腹杆组成221个四棱单锥体,锥高3.2m。网架上下弦同时起栱4％,坡高0.9m;钢板
The framework structure of the roof construction project of the Fuzhou Stadium constructed by our company is a two-way orthogonal right-angled square cone plate frame and a network frame with a short span of 45m. According to the structural characteristics and construction conditions, we have adopted the ground combination quadrangular pyramid, high-altitude platform assembly strip unit grid, pushing the cumulative rolling and sliding construction method. It has been proved by practice that this plan is feasible and relatively economical. I. Project Overview Fuzhou Stadium is a medium-sized gymnasium with 4,000 auditoriums. The grid plane size is 59×45.2=2667m~2. The bottom 221 hollow steel ball joints and chords form 192 grids; the top chord is No. 400 reinforced concrete ribbed plate, and it consists of 221 single-sided pyramids with webs, with a cone height of 3.2m. The grid up and down from the same time from the 栱 4%, slope height of 0.9m; steel plate