Rapidly-constructed steel-concrete composite beam concrete bridge deck slab and hoisting system thereof

Abstract

The invention discloses a rapidly-constructed steel-concrete composite beam concrete bridge deck slab which comprises a middle plate and cantilever slabs arranged on the two sides in the transverse direction of a bridge, and the middle plate and the cantilever slabs are connected through corresponding connecting cross beams to form a prefabricated integral structure. The longitudinal length of theconnecting cross beam is 30%-35% of the longitudinal length of the middle plate and the longitudinal length of the cantilever plate. And shear grooves are formed between the two longitudinal sides ofthe connecting cross beams and the corresponding middle plates and between the two longitudinal sides of the connecting cross beams and the corresponding cantilever plates correspondingly, and reliable connection between the concrete bridge deck slab and the top of the steel beam is achieved through a plurality of shear connecting pieces arranged in the shear grooves. The invention further discloses a rapidly-constructed steel-concrete composite beam concrete bridge deck slab hoisting system. The requirement for arranging a large number of shear connectors is met, and the problems that due totransverse partitioning, the integrity of the bridge deck slab is poor, and the installation workload of a cast-in-place construction formwork is large are solved.

Description

technical field [0001] The invention belongs to the technical field of bridges, and more specifically relates to a rapidly constructed steel-concrete composite girder concrete bridge deck and a hoisting system thereof. Background technique [0002] Compared with concrete beams, steel-concrete composite beams have lower structural height, lighter weight, less formwork and scaffolding, and shorter construction periods; compared with steel beams, composite beams have lower structural heights, higher bearing capacity, higher stiffness, and reduced steel consumption Small, greatly improved durability. The concrete bridge deck structure of the steel-concrete composite beam, as an important part that directly bears the vehicle load and the composite section, is one of the most critical and complex structures of the steel-concrete composite beam. For the steel-concrete composite girder concrete bridge deck structure, the conventional construction is cast-in-place method or block pr...

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a rapid construction steel-concrete composite girder concrete bridge deck, which meets the need for arranging a large number of shear connectors, and avoids the overall damage caused by the transverse block. Poor performance and large installation workload of cast-in-place construction formwork

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