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预应力槽瓦是一种自防水有檩轻屋盖构件,广泛应用于矿山、机械制造等工业厂房及附属设施中,槽瓦适于长线重叠生产,效率高,自重轻,运输、吊装、维修都比较方便。但经十余年使用的检验,尤其在某些地区发生槽瓦屋盖塌落事件,故从1975年以后,槽瓦应用逐渐减少。由于使用单位对槽瓦认识不足,只择其优,不识其弊,仍要求按原标准图加工,因此重新讨论槽瓦的设计、生产、使用是很有必要的。近年我们按原国家建委的文件要求,对本单位所使用的槽瓦屋面(均为1969年前后竣工使用的)进行了调查。所调查的建筑有金工、铸造、铆焊、机修、汽修、库房等工
The prestressed slot tile is a kind of self-waterproof concrete light roof component widely used in mines, machinery manufacturing and other industrial plants and auxiliary facilities. The slot tile is suitable for long-line overlapping production, high efficiency, light weight, transportation, lifting, maintenance It is more convenient. However, after more than ten years of inspections, especially in some areas, the roof shingle roof falls down. Therefore, since 1975, the use of shingles has gradually decreased. As the use of units on the slot tile lack of understanding, only choose its excellent, do not know the disadvantages, still require processing according to the original standard map, so re-discussion of tile design, production, use is very necessary. In recent years, according to the requirements of the documents of the former State Construction Committee, we investigated the tile roofs used by this unit (both were used before and after the completion of 1969). The surveyed buildings include metalworking, foundry, riveting, mechanics, auto repair, warehouses, etc.