唐山新建的住宅中有部分系内浇外挂钢筋混凝土结构,外墙是以预制钢筋混凝土大板安装,它的优点是抗震性能较好,工期短,缺点是大板接缝不易处理,容易渗漏雨水。在几百幢内浇外挂住宅竣工后一二年,普遍发现外墙大板接缝处有渗漏雨 Some of Tangshan’s newly-built houses are cast in reinforced concrete structures. The outer walls are prefabricated with reinforced concrete slabs. Its advantages are good seismic performance and short construction period. The disadvantage is that large slab joints are not easy to handle and easy to leak. rainwater. Within a year or two after the completion of construction of several hundred in-house pourable exterior houses, it was generally found that there were leaks at the joints of the outer wall slabs.