一、设缝的目的导致建筑物的开裂,有许多因素。如:自然温度的变化和材料本身的收缩将引起建筑物伸缩变形;地基土的分层构造不均和压缩性的差异,以及建筑物本身的刚度、重量分布不均将产生不均匀沉降;建筑物本身各部分的地震反应也不相等。这些因素将对建 First, there are many factors in setting the purpose of the seam leading to the cracking of the building. For example, the change of natural temperature and the shrinkage of the material itself will cause the building to expand and contract; the difference in layered structure and compressibility of foundation soil, and the uneven distribution of stiffness and weight of the building itself will cause uneven settlement; The seismic response of each part of the object itself is not equal. These factors will be built