住宅预制楼板顺板缝出现裂缝是常见的现象。产生这一问题的原因,主要是由于每块楼板在施工与使用中所承受的荷载不同,相邻板产生弯曲变形差异造成的。笔者曾试验,在预制板铺好后,楼板灌缝、抹灰找平前,在两块板的中间,垂直于板 It is a common phenomenon that cracks appear in the joints of residential prefabricated floor slabs. The reason for this problem is mainly due to the fact that each floor is subjected to different loads during construction and use, resulting in differences in bending deformation between adjacent plates. The author once tested that, after the prefabricated panels are laid, before the slabs are filled and the plaster is leveled, in the middle of the two panels, perpendicular to the panels