The Research And Application Of The Large-span Prestressed Concrete Hollow Slab Structural

Prestressed structures reinforced concrete as widely used technology is a combination of high steel and concrete, which efficiently covers longer span to meet the special functional requirements.In this paper, the development process of the prestressed concrete concept have been looked back, and based on this, the definition and work principle of unbonded prestressed structure in modern prestressed structure system have been putted forward and analysed. Aaccording to the analysis of current situation, a series of post-tensioned long-span high intensity prestressed concrete hollow slabs are designed. The traditional pre-stressed reinforced concrete hollow slab not only possesses better mechanical property but also meet the need of the modern construction to the pre-stressed reinforced concrete hollow slab.The design method given in this paper is of some practical meaning, and it gives scientific research basis for the application of post-tensioned large-span high strength prestressed concrete hollow slabs in the civil engineering arid valuable experience for the further research. And because the research example on civil engineering is little, the paper deems that the research has some meaning in theory and some value of application.