砖混房屋温度场测试与墙体抗裂性分析

Test of temperature field and analysis of wall crack-resisting of brick building

针对砖混结构房屋的温度裂缝问题 ,选取某一建筑进行温度场测试 ,并与理论分析的结果对照 ;计算了屋面板温度、墙体温度和抗拉强度 ,为改善保温层、降低顶板温度、减小温度应力的抗温度裂缝设计方法提供了依据 .试验结果表明 :屋面昼夜温度呈波状变化 ,有延迟 ;内纵墙更应提高砂浆强度 ;

There are some temperature cracks in buildings, it takes a lot of manpower and material resources to deal with this problem. The paper aims at the problem of temperature cracks in brick structure. A building is chosn to make test of temperature fields, it can be contrasted with results of theory analysis to validate if it is sound. It can provide basis with resisting temperature design methods to ensure heat preservation, fall temperature of top floor and minish temperature stress. Experimental results show the temperature of top floor is wavelike changed, there is delay; mortar strengths may be to increase; heat insulation performance is changed when heat preservation is wet.