Combined bent cap suitable for bridge deck continuous structure, bridge and construction technology

Abstract

The invention discloses a combined bent cap suitable for a bridge deck continuous structure, a bridge and a construction technology. The combined bent cap comprises a steel-concrete combined bent cap body and the bridge deck continuous structure arranged at the upper end of the steel-concrete combined bent cap body, and the steel-concrete combined bent cap body comprises a steel beam and a concrete block arranged at the top of the steel beam; the bridge deck continuous structure comprises an adaptable deformation base plate arranged at the top of the concrete block, first-time post-pouring concrete arranged at the top of the adaptable deformation base plate and second-time post-pouring concrete arranged at the top of the first-time post-pouring concrete, and a vertical gap extending in the width direction of a bridge deck is formed in the middle of the first-time post-pouring concrete. The first-time post-pouring concrete and the second-time post-pouring concrete are fixedly connected with a bridge deck slab; the steel-concrete combined bent cap structure is reasonable in stress, field operation can be reduced, the bridge deck continuous structure can reduce the gap of the bridge deck to one, the stress of the continuous position of the bridge deck is effectively improved in combination with arrangement of other components, and the durability of the bridge is good.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a combined cover girder, a bridge and a construction process suitable for the continuous structure of bridge decks. Background technique [0002] With the advancement of my country's urbanization process, the conflict between land shortage and traffic congestion in urban traffic construction is becoming more and more obvious. Therefore, urban viaducts are more and more widely used in urban road reconstruction and construction. With the wide application of viaducts, the conflict between the substructure of viaducts and the underpass road is inevitable, and the form of gantry piers with large column spacing is often required. [0003] At present, the commonly used gantry pier cover beams are mainly prestressed concrete cover beams and steel cover beams. For the prestressed concrete cover beam, it is necessary to set up supports and formwork before construct...

AI Technical Summary

Problems solved by technology

However, in the existing technology, the two sides of the conventional inverted T-shaped cover beam are used to support the corresponding beam body, and two gaps are formed between the inverted T-shaped cover beam and the beam body, and the construction requirements are high in the subsequent continuous construction of the bridge deck. , and the two gaps are equivalent to two weak points in the continuous structure of the bridge deck, which makes the durability of the bridge deck poor and affects the driving comfort

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