一、对推广预应力构件的认识和我们的设想我段地处郑州市区,辖区房屋绝大部分是民用生活平房、楼房、办公楼房、仓库等,木屋架瓦屋顶占70～80％,近两年来除新建楼房是普通钢筋混凝土构件外,每年大维修工作总是屋顶治漏,屋架加固,木材、钢材不少用,房屋质量提不高。由于预应力技术开创了普通钢筋混凝土结构所不能解决的结构新形式,旣可节约三大主材,又能组织工厂化生产,因此,今年我们准备在两栋仓库(1800m~2)屋面工程采用12m跨预应力V形折板,这一工程的材料消耗,将比原房大修节省钢材30％,木材50m~3。由于预应力构件体积小,重量轻,防火、 First, to promote the understanding of prestressed components and our vision I section is located in the urban area of ​​Zhengzhou, the vast majority of residential areas are residential bungalows, buildings, office buildings, warehouses, wooden roof tile roof accounted for 70 to 80%, near In addition to the two years, new buildings are ordinary reinforced concrete components, the annual maintenance work is always roof leakage management, roof reinforcement, a lot of wood, steel, housing quality is not high. As prestressed technology opens up a new form of structure that ordinary reinforced concrete structures can not solve, it can save three main materials and organize industrialized production. Therefore, this year we are going to adopt the construction of two warehouse (1800m ~ 2) roofing works 12m cross-prestressed V-shaped folding plate, the material consumption of this project will be overhauled than the original house to save 30% of steel, wood 50m ~ 3. As prestressed components small size, light weight, fire prevention,