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该文运用稳态传热理论,采用有限元软件ANSYS模拟分析一型剪力墙热桥在3种结构形式(不保温、内保温及外保温)下的位移场、应力场,并量化分析对比热桥沿墙厚方向的应力变化。分析结果发现,外保温结构是一种良好的结构体系,能有效降低热桥由于温差作用产生的温度应力,改善结构受力性能,增强建筑物的耐久性,提高建筑结构使用寿命。因此具有重要的经济和社会效益。
In this paper, the steady-state heat transfer theory is used. The finite element software ANSYS is used to simulate and analyze the displacement and stress fields of a type of shear wall thermal bridge in three kinds of structures (not thermal insulation, internal thermal insulation and external thermal insulation) Thermal bridge along the wall thickness of the direction of stress changes. The analysis shows that the external insulation structure is a good structural system, which can effectively reduce the thermal stress caused by temperature difference, improve the mechanical performance of the structure, enhance the durability of the building and improve the service life of the building structure. Therefore, it has important economic and social benefits.