一、随着城市建设事业的迅速发展和建设用地日益紧张,近年来,高层建设更是风起云涌。由于高层建筑多种结构体系,在建筑物的顶端亦不相同,故在伸缩缝的构造上要特别注意和妥然处理。以往伸缩缝、沉降缝都将镀锌铁皮为盖缝板、做成一块整体,钉在 First, with the rapid development of urban construction and the growing use of construction land, high-rise construction has been surging in recent years. Due to the variety of structural systems of high-rise buildings, they are not the same at the top of the building. Therefore, special attention must be paid to the construction of expansion joints. In the past, the expansion joints and the settlement joints were all made of galvanized iron sheet as cover joints and made into a single piece.