砌体结构温度应力分析

Analysis of temperature stress in masonry structure with FEM

为探讨砌体结构温度裂缝机理,对一砌体结构墙体与屋面板的温度场进行了实测,得到了砌体结构墙体与屋面板随时间的温度分布,给出了砌体结构建筑温度场的变化规律,在实测温度场的基础上,用有限元法对整体结构进行了温度应力分析,并给出了考虑干缩影响的温度应力计算方法。研究结果为控制砌体结构温度裂缝提供了参考。

In order to study temperature crack mechanism of masonry structure, temperature field of the masonry structure wall and roof panel was surveyed and the temperature distribution with time of masonry structure wall and roof panel was acquired. The varied temperature field of masonry structure is presented. On the basis of studying temperature field, the whole structure stress distribution was analyzed with the finite element method and the computing procedure of temperature stress considering the effect of material shrinkage was obitined. It is useful for controlling temperature crack in masonry structure.