Connecting structure of prefabricated reinforced concrete composite beam and construction method thereof

Abstract

The invention discloses a connecting structure of a prefabricated reinforced concrete composite beam. The connecting structure comprises steel beams (1) and concrete prefabricated slabs (2); the concrete prefabricated slabs (2) are poured on the steel beams (1), the upper sides of the steel beams (1) are fixedly provided with shearing studs (3), the connecting ends of the concrete prefabricated slabs (2) are provided with connecting surfaces with slope-shaped surfaces, and the connecting surfaces are provided with grooves (5); and the connecting ends of the steel beams (1) are connected with each other, the connecting ends of the concrete prefabricated slabs (2) are connected with each other through concrete wet joints (6), and the concrete wet joints (6) are located on the upper sides ofthe connecting ends of the steel beams (1) so as to cover the connecting surfaces and the shear studs (3). The invention further discloses a construction method of the connecting structure of the prefabricated reinforced concrete composite beam. The connecting structure of the prefabricated reinforced concrete composite beam and the construction method thereof have the advantages of high connection strength, stable and reliable connection, convenient construction and the like.

Description

technical field [0001] The invention relates to bridges, in particular to a connection structure of prefabricated steel-concrete composite beams. The invention also relates to a construction method for the connection structure of the prefabricated steel-concrete composite beam. Background technique [0002] At present, the prefabricated structure is more and more widely used in the construction field. Its construction is simple and fast, the project quality is high, and the impact on the environment is small, so it has a very promising application prospect. In the design and construction of prefabricated bridges, the assembly of prefabricated components is an important part of determining the performance of bridge structures. Generally, there are three types of joints in bridge prefabricated structures: wet joints, glued joints and dry joints. The characteristics of the three seam forms are shown in Table 1. Concrete wet joints and glued joints are often used for the spli...

AI Technical Summary

Problems solved by technology

[0005] The construction period of traditional concrete wet joints is long, and the joint strength is not high at the same time, and it is easy to crack; using glued joints, the integrity of the bridge is reduced, the strength and ductility are not high, the fatigue resistance of the joints is not strong, and it is easy to crack. Aging, durability issues

The strength and durability of the joints have a huge impact on the prefabricated assembly structure, which limits the advantages of the prefabricated assembly building

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