多层砖房温度裂缝机理及防治措施的研究

Research on Mechanism and Prevention Measures of Temperature Cracks Occurred in Multistory Masonry Buildings

为了对多层砖房温度裂缝的机理做出准确的解析,我们采用有限元法(FEM)对影响温度裂缝产生、发展、连通这一宏观运动的诸多因素进行了计算分析。同时,广大工程技术、设计人员迫切需要一种简单合理的简化计算方法,以期在工程设计阶段或者现场鉴定时有一种较为科学的判别手段。为此,本文利用顶板与墙体交接处位移协调条件,引入两个约束系数的概念,提出了多层砖房温度裂缝的简化计算公式。最后,本文给出了预防多层砖房温度裂缝的措施及一般处理方法。

For more accurate acquirement for mechanism o f temperature cracks occurred in multistory masonry buildings, FEM was adopted i n computation and analysis of factors which have influence on the crack movement . It is taken into account that engineering and designing personnel demand for a more simple and reasonable computing method during design or checkup on site. B y adopting two restraint efficient, a simplified computing formula is proposed a nd general measures in disposal of temperature. Cracks of multistory masonry bui ldings.