前言为了适应建筑业的发展，应用高新技术，采用新材料，我们设计研制了跨度为9．3m到12m系列热处理钢筋预应力混凝土空心板，简称大跨度预应力混凝土空心板。该板适用于工厂、学校、商场、宾馆、仓库、交易市场、办公大楼等大开间建筑工程中楼板和屋面结构。他可以减少梁柱现 Foreword In order to adapt to the development of the construction industry, applying high technology and adopting new materials, we designed and developed a series of prestressed concrete hollow slabs with a span of 9.3m to 12m in heat treatment, referred to as large span prestressed concrete hollow slabs for short. The board is suitable for floor slabs and roof structures in large-bay construction projects such as factories, schools, shopping malls, hotels, warehouses, trading markets, and office buildings. He can reduce the beam column