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文章以40 m跨单层网壳结构为研究对象,采用MIDAS GEN建立空间力学计算模型并求解。对结构进行弹性屈曲分析,考虑了初始缺陷和几何非线性对稳定安全系数的影响,能较精确地得出结构的稳定极限承载力。
The article takes the 40 m single-layer reticulated shell structure as the research object, and uses the MIDAS GEN to establish the space mechanics calculation model and solve it. The elastic buckling analysis of the structure is taken into account. The influence of the initial defect and geometric nonlinearity on the stability safety factor is considered, and the stable ultimate bearing capacity of the structure can be obtained accurately.