Self-positioning internally-installed steel bar U-shaped composite beam

Abstract

The invention relates to a self-positioning internally-installed steel bar U-shaped composite beam. The self-positioning internally-installed steel bar U-shaped composite beam comprises a U-shaped steel beam housing and concrete components; the middle part of the self-positioning internally-installed steel bar U-shaped composite beam is provided with a U-shaped steel-clad concrete component provided with an opening; each end part of the self-positioning internally-installed steel bar U-shaped composite beam is provided with a rectangular steel-clad concrete component; each beam top flange of a corresponding end part of the self-positioning internally-installed steel bar U-shaped composite beam is provided with a steel angle, a linear upper cover plate is arranged on the beam top flanges, and a groove steel component is arranged on the bottom flanges. The beam end bearing capacity is improved by arrangement of the steel angles, the linear upper cover plate, and the groove steel component, beam torsional stiffness is increased, beam local and entire stability are ensured, installation and construction are convenient, and construction speed is increased greatly. According to the self-positioning internally-installed steel bar U-shaped composite beam, full utilization of the high strength of steel and the high compression bearing capacity of concrete is achieved, steel amount is reduced, cost is reduced, hot rolling or cold rolling is adopted, the self-positioning internally-installed steel bar U-shaped composite beam can be produced via one time moulding, structure deformation caused by welding is reduced, structure reliability is improved, the self-positioning internally-installed steel bar U-shaped composite beam is beneficial for industrial production of steel structures, and excellent social and economic benefit is achieved.

Description

technical field [0001] The invention belongs to the technical field of buildings and relates to a composite steel beam in a building steel structure system. Background technique [0002] Steel beams are important components of buildings, and their performance directly affects the cost and safety performance of buildings. From the published patented technology, the patent number: 2013206125779, only provides a basic method of composite beams. Although compared with the traditional pure steel structure, the steel consumption is reduced a little, but it does not reflect the huge advantages of the joint action of the steel-concrete structure. The problems of difficult fabrication and complicated installation of the U-shaped steel girder and long construction time are not solved. From the published patent technology, patent number: 2013100693439 discloses a processing method of J-shaped steel, but the manufacturing process is complicated, the processing cost is high, and the pro...

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Problems solved by technology

From the published patented technology, the patent number: 2013206125779, only provides a basic method of composite beams. Although compared with the traditional pure steel structure, the steel consumption is reduced a little, but it does not reflect the huge advantages of the joint action of the steel-concrete structure. It does not solve the problems of difficulty in making U-shaped steel beams, complicated installation, and long construction time

From the published patent technology, patent number: 2013100693439 discloses a processing method of J-shaped steel, but the manufacturing process is complicated, the processing cost is high, and the processing time is long, so it is difficult to meet the requirements of processing speed and construction cost in practical applications.

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