Bridge engineering design is one of the key links in bridge construction, which plays a decisive role in bridge construction, bridge construction and long-term safe use. Based on the design principle of“applicable, safe, economical and beautiful”, considering the type of structure to facilitate construction and installation, and taking into account the equipment capabilities and experience of the construction units in the area, no other bridge types are compared, and the bridge system is simplified. Beam system. The upper structure adopts a prefabricated assembly structure, so that the upper and lower structures can work in parallel, saving construction time and saving cost. Because the slab bridge has the characteristics of simple structure and clear force, it can be prefabricated by the factory, which is convenient for quality control and cost reduction. It can be made of reinforced concrete or prestressed concrete structure according to the demand, and it can be made into solid or hollow section and can be poured in place. In order to adapt to various shapes of curved, slope and inclined bridges, it is widely used in general roads, high-grade roads and urban roads and bridges. This design uses prestressed hollow slab simple supported girder bridges. This paper mainly introduces prestressed concrete. Design calculation method for hollow slab girder bridge.
Key words: simply supported girder bridge; prestressed concrete; hollow slab
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