Prefabricated reinforced concrete column-steel beam cast steel joint

Abstract

The prefabricated assembly type reinforced concrete column-steel beam cast steel joint comprises a prefabricated joint area, a prefabricated reinforced concrete column and a prefabricated steel beam, the prefabricated joint area comprises a steel sleeve, a stiffening rib plate is welded in the steel sleeve, and a cast steel connecting piece and a connecting plate are welded to the two ends of the steel sleeve; the steel sleeve is connected with the prefabricated short steel beam through the cast steel connecting piece and the connecting plate, concrete is integrally poured after the prefabricated node area and a reinforcement cage of the prefabricated reinforced concrete column are manufactured, and then the steel sleeve is connected with the prefabricated steel beam. According to the invention, the component size is reduced, and the transportation is convenient; all prefabricated parts are completed in a factory, only bolt connection needs to be carried out on site, and the influence of a heat affected zone generated by on-site welding on the joint mechanical property is overcome; positioning of beam columns in the node area is more accurate, and the construction efficiency is high; the steel sleeve generates a constraint effect on concrete in a node area, so that the stress performance is improved; the steel sleeve is wrapped with concrete without stirrups, and the node area is simple in structure and convenient to construct.

Description

technical field [0001] The invention belongs to the technical field of building structures and relates to a prefabricated assembled reinforced concrete column-steel beam cast steel joint. Background technique [0002] In recent years, with the rapid development of my country's economy, people's living standards are improving day by day, and the requirements for living environment are getting higher and higher. In order to respond to the concept of green environmental protection and practice a healthy, coordinated and sustainable development strategy, the country actively develops prefabricated green buildings to solve problems such as high energy consumption, high pollution, and high investment in architectural design. [0003] With the continuous development of architectural structures, many new composite structural systems have emerged. Reinforced concrete column-steel beam composite structure (reinforced concrete column-steel beam, RCS composite structure for short), as ...

AI Technical Summary

Problems solved by technology

The on-site pouring process is complicated, the construction period is long, and it has a great impact on the surrounding environment, which does not conform to the concept of green construction; steam curing cannot be provided after concrete pouring, and it is easily affected by seasons and weather, and the construction quality is difficult to guarantee

The existing beam-to-column joints mostly use welding or bolt-welding combined joints, and there are common situations where the welds are too close or even meet, which will cause a large welding heat-affected zone in the beam-to-column joint area, which will affect the mechanical performance of the joint

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