混凝土多孔砖砌体结构温度应力有限元分析

Finite Element Analysis of the Temperature Stress of Concrete Perforated Brick Masonry

针对影响混凝土多孔砖砌体结构的温度裂缝问题进行了探讨,考虑混凝土多孔砖及砂浆强度、圈梁截面高度、结构温差等因素对墙体温度应力的影响,采用有限元分析程序ANSYS构造了数值计算模型进行整体有限元分析,并总结了各因素对墙体温度应力的影响规律.研究结果为预防和控制混凝土多孔砖砌体结构温度裂缝提供了科学依据.

Temperature cracks on concrete perforated brick masonry walls are discussed. The effects of strength of concrete perorated brick and mortar, section height of ring beam and difference in temperature of structure on temperature stress are considered. The computmional model is set up by using ANSYS programme, and then the temperature stress of the model is analyzed by finite element method. The effects of some affecting factors on temperature stress are summarized. Some valuable conclusions have been obtained for preventing and controlling concrete perforated brick masonry crack.