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工程为体育场馆,采用单层柱面网壳结构,采用SAP2000程序对单层网壳进行了非线性稳定性分析,将满跨荷载和半跨荷载下的屈曲模态进行了对比,并比较了采用屈曲模态与采用一阶振型计算初始缺陷的不同。
The project is a stadium with a single-layer cylindrical reticulated shell structure. The nonlinear stability analysis of single-layer reticulated shell is carried out by using SAP2000 program. The buckling modes of full-span and half-span loads are compared and compared The difference between using buckling mode and using first-order mode to calculate initial defect.