Combination beam

Abstract

The invention discloses a composite beam, which comprises reinforcement concrete prefab beam and section steel joints, wherein both ends of reinforcements of the reinforcement concrete prefab beam are connected with section steels, one end of section steel joint is pre-imbedded into the wall pier concrete and is connected to the reinforcement inside the wall pier, the other end of the section steel joint is remained outside the wall pier, both ends of section steel of the prefab beam and the section steel joints are connected to form the composite prefab beam. Due to the composite beam, the section steel joints and the wall piers are integrated with good connection integration property of the beams and simple process, wherein both ends of the section steel is connected with the section steel joints of the prefab beam to form composite beam, the connection between the prefab beam end and the section steel joints adopts welding, bolt connection type, and the like, the composite beam production can be industrialized, needs no framework, has small materials consumption and rapid construction progress.

Description

Technical field: [0001] The invention relates to the field of building construction, in particular to a composite beam. Background technique: [0002] At present, steel beams or reinforced concrete beams are usually used in building structures. Steel girders can be industrialized and easy to construct, but the cost of steel girders is high; reinforced concrete girders are divided into cast-in-place girders and prefabricated girders, and cast-in-place girders need formwork during construction, resulting in large material consumption and slow construction progress; prefabricated girders can be industrialized Modern production, no need for formwork, low material loss, and fast construction progress, but reinforced concrete prefabricated beams in the building structure beam-column joints have poor bending resistance, shear resistance, and poor integrity, and the joints are difficult to manufacture. Invention content: [0003] The object of the present invention is to provide ...

AI Technical Summary

Problems solved by technology

Steel girders can be industrialized and easy to construct, but the cost of steel girders is high; reinforced concrete girders are divided into cast-in-place girders and prefabricated girders, and cast-in-place girders need formwork during construction, resulting in large material consumption and slow construction progress; prefabricated girders can be industrialized Modernized production, no need for formwork, low material loss, and fast construction progress, but reinforced concrete prefabricated beams have poor bending resistance, shear resistance, and integrity of beam-column joints in building structures, and it is difficult to make joints

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