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对于中等跨度以上的双层柱面网壳,温度应力在网壳结构荷载效应组合中不容忽视。近几年我国极端天气大量出现,温度应力再次成为热点问题。文章以某工程为背景,运用通用结构分析与设计软件SAP2000对模型结构进行分析,通过设定合理的弹性支座刚度,释放因温差引起的温度应力。
For a double-layer cylindrical reticulated shell above mid-span, the thermal stress should not be neglected in the combination of the reticulated shell structures. In recent years, a large number of extreme weather in China, temperature stress once again become a hot issue. Taking a project as a background, the article analyzes the model structure by using the common structure analysis and design software SAP2000, and releases the temperature stress caused by the temperature difference by setting reasonable stiffness of the elastic support.