Static performance analysis of a single layer cable net structure

Cable net structure is a typical tension structure, which can bear load by tension. The cable net structure has unique aesthetic feeling in the expression of architectural form, and has the advantages of light weight, easy folding and large shrinkage ratio, which also makes the cable net structure favored by designers and widely used in architectural structure. The roof of the natatorium of Suzhou Olympic Sports Center adopts 107m long-span saddle-shaped single-layer orthogonal cable-net structure. In this paper, the finite element analysis of the static performance of the cable-net steel structure roof was carried out. The overall calculation model of steel roof was established by using the finite element software. Considering the obvious geometric nonlinearity of single-layer orthogonal cable-net-membrane structure, the influence of static load, live load, wind load and snow load on the displacement and internal force of steel roof was analyzed under different load combinations.