由于地基承载能力不同,建筑物在超过一定长度时,需设置沉降缝。而沉降缝的宽度较小,一般在60mm 左右,且施工难度较大,尤其是框架结构的建筑沉降缝的施工就更难控制了。在一些框架结构工程施工中,一般采用标准砖预塞的方法,待结构施工完毕后,凿出砖块。由于受梁、柱混凝土的挤压,凿取十分困难,而且不能保证质量。 Due to the different bearing capacity of the foundation, settlement joints need to be installed when the building exceeds a certain length. The width of the settlement joint is small, generally about 60mm, and the construction is difficult. In particular, the construction of the construction settlement joint of the frame structure is more difficult to control. In the construction of some frame structures, the method of pre-plugging standard bricks is generally adopted. After the construction of structures is completed, the bricks are cut out. Due to the extrusion of beams and columns, it is very difficult to scoop and the quality cannot be guaranteed.