Prestressed concrete-steel tank beam bond beam continuous beam bridge

Abstract

The invention provides a prestressed concrete-steel tank beam bond beam continuous beam bridge. The prestressed concrete-steel tank beam bond beam continuous beam bridge comprises piers, a concrete-steel tank beam bond beam section and prestressed concrete box girder sections. The concrete-steel tank beam bond beam section is located in a midspan positive moment region, the prestressed concrete box girder sections are located in other positions, and steel-concrete transition sections are arranged between the prestressed concrete box girder sections and the concrete-steel tank beam bond beam section. Compared with the prior art, the prestressed concrete-steel tank beam bond beam continuous beam bridge has the following advantages that material performance is fully utilized, and engineering manufacturing cost is reduced; the spanning capacity of the bridge is improved, and the building height of a main bridge is reduced; the dead weight is effectively reduced, midspan deflection is reduced, the spanning capacity is improved, and the building height of the main bridge is reduced; the concrete-steel tank beam bond beam is connected with a bridge deck pavement layer through a concrete bridge deck, and the problem that an ordinary steel box girder bridge deck is easily damaged in the pavement process can be solved; the concrete-steel tank beam bond beam is conveniently prefabricated in a factory, the construction progress can be greatly accelerated, the bridge forming effect is good, and the bridge is especially suitable for channel crossing or overpass bridges.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a prestressed concrete-steel channel beam combined beam continuous beam bridge. Background technique [0002] With the continuous development of social economy and the gradual increase of bridge spans, the spanning capacity of traditional prestressed concrete continuous girder bridges is greatly limited due to the influence of the structure's own weight. Steel box girder bridges have been widely used in long-span bridges because they can reduce the structural weight, have high rigidity and strong spanning capacity, and can significantly improve the mechanical performance of bridge structures. However, the high cost of steel box girder bridges, complex construction, and fragile deck pavement limit the development of steel box girder bridges. Contents of the invention [0003] The purpose of the present invention is to provide a prestressed concrete-steel ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a prestressed concrete-steel channel girder combined girder continuous girder bridge, which can make full use of the mechanical properties of different materials, on the basis of improving the spanning capacity of the bridge, simultaneously simplify the construction process, greatly reduce the cost, and solve the problem of Bridge deck pavement is fragile and other problems

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