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平顶砖房采用在女儿墙根设置汇水天沟的有组织屋面排水方式,竣工后数年内陆续出现在女儿墙面上的裂缝现象,可归纳为两端的八字缝、墙根的水平缝和中部的垂直缝等三种形式。现对这些裂缝现象进行分析。一、产生的原因砖砌女儿墙裂缝的主要原因是,砖砌体随温度变化的热胀冷缩变形受到约束,转化为砌体内的变形应力,当此应力峰值大于砌体抗力时,峰值部位出现裂缝。1.构成约束条件的因素(1)女儿墙暴露在大气中,受环境气温
The flat-roofed brick house adopts the organized roofing drainage method of collecting gutter on the wall of the daughter’s wall. After several years of completion, the cracks that gradually appear on the walls of daughters can be summarized as the character cracks at both ends, the horizontal seam of the wall root, Vertical seam and other three forms. These cracks are now analyzed. First, the causes Brick wall cracks in the main reason is that the brick with temperature changes in the thermal expansion and contraction deformation constraints, into the deformation of the masonry stress, when the peak stress is greater than the masonry resistance, the peak Parts of the cracks. 1. Constraints constraints (1) daughter wall exposure to the atmosphere, subject to ambient temperature