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讨论屋面板在温度作用下的温度应力问题 .从实际工程结构中选取一典型屋面板 ,它与框架梁组成组合结构体系 ,考虑日照温差作用 ,采用大型结构有限元分析程序求解屋面板在不同约束条件工况下的温度作用效应 .计算结果表明 ,考虑梁板连接的组合体系的跨中温度应力介于板四边固支与四边简支之间 ,在屋面板设计中应考虑屋面板的这种弹性支承影响
This paper discusses the temperature stress problem of roof panels under temperature.A typical roofing panel is selected from the actual engineering structure, which is composed of a composite structure with frame beams. Considering the temperature difference of sunshine, a large-scale structural finite element analysis program is used to solve the different constraints Temperature conditions under the condition of working conditions.The calculation results show that the mid-span temperature stress of the combined system considering the beam-plate connection is between the support of the four sides of the plate and the simple support of the four sides, and the roofing plate should be considered in the design of the roofing plate Elastic support effect