Fabricated prefabricated reinforced concrete beam connection joint and construction method thereof

Abstract

The invention discloses a fabricated prefabricated reinforced concrete beam connection joint and a construction method thereof. The connection joint comprises a lower convex prefabricated concrete beam and an upper convex prefabricated concrete beam. First concave openings are formed in the upper and lower end faces of the connection side wall of the lower convex prefabricated concrete beam, and second concave openings are correspondingly formed in the upper and lower end faces of the connection side wall of the upper convex prefabricated concrete beam; upper prefabricated steel plates and lower prefabricated steel plates are arranged inside the first concave openings and the second concave openings; the upper and lower prefabricated steel plates are correspondingly connected with upper and lower reinforcing steel plates; the connection side walls of the two beams are provided with a third concave opening and a fourth concave opening respectively, and load-bearing bars are correspondingly and transversely arranged inside the third concave opening and the fourth concave opening. The method comprises the steps of manufacturing the two beams, prefabricating the steel plates, performing butt connection on the two beams, and connecting the load-bearing bars inside the two beams. Due to the structural design, three-layer energy dissipation is achieved, and the problems that the shockresistance is poor and the ductility deformability is poor between dry type connection beams are solved; after seismic damage, replacement is easy, assembling is convenient, and the assembling rate is high.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a connection node of an assembled prefabricated reinforced concrete beam and a construction method thereof. Background technique [0002] Due to its short construction period, simple construction, and material saving, prefabricated buildings are an important structural form to promote construction industrialization and green buildings, and play an important role in the future construction industry. [0003] The connection mode of concrete prefabricated structural nodes is divided into wet connection and dry connection. For wet joint connection, the beam-column components are manufactured in the factory in advance, and then assembled and hoisted after being transported to the site, and concrete is poured on the beam-column joints, and the monolithic structure is poured after completion. Since the concrete at the joints is solidified after the prefabricated concre...

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Problems solved by technology

[0004] In order to solve the above problems, the object of the present invention is to propose a connection node of an assembled prefabricated reinforced concrete beam and its construction method, which realizes three-layer energy consumption through structural design, and solves the problem of poor ductility and deformation capacity between dry connection beams and The problem of low seismic capacity; at the same time, the connection node is easy to replace after the earthquake damage, and the assembly is convenient without special construction support, and the assembly rate is high

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