Steel-reinforced concrete T-shaped column-steel beam connection joint

Abstract

The invention discloses a steel-reinforced concrete T-shaped column-steel beam connection joint. The connection joint comprises a steel-reinforced concrete column and a steel beam. The steel-reinforced concrete column has a T-shaped cross section and comprises a steel-rib framework, a steel-bar framework and concrete, wherein the steel-rib framework is located in the center of the cross section, the steel-bar framework composed of longitudinal steel bars and stirrups surrounds the steel-rib framework, the concrete wraps the steel-rib framework and the steel-bar framework, and webs of the steel-rib framework are provided with a plurality of holes. The steel beam is connected with steel ribs, joint connecting modes include the full welding mode, the bolting and welding combined mode and the full bolting mode, and a column-through pattern is adopted as the joint structural pattern. Closed stirrups can be easily formed by means of the connection joint; the concrete in a joint core area undergoes multiple constraints, so that the bonding force between the steel ribs and the concrete in the joint core area is increased, it is guaranteed that the concrete works in cooperation with the steel ribs better, the force bearing performance of the connection joint is improved, and the bearing capacity and ductility of the connection joints are greatly improved as well.

Description

technical field [0001] The invention relates to the technical field of a novel building structure, in particular to a steel-reinforced concrete T-shaped column-steel beam connection node. Background technique [0002] In residential buildings, special-shaped column structures have incomparable advantages over other structural systems, and are more and more favored by people. In recent years, they have been highly valued by scholars and engineers at home and abroad, and thus have been widely used. [0003] However, in multi-story residential buildings, the reinforced concrete special-shaped column structure is difficult to meet the bearing capacity requirements due to the limitation of the length and thickness ratio of the column section, and many problems such as crowded reinforcement in the node area make the advantages of the special-shaped column unable to be comprehensive. Reflect, thereby limiting its scope of application, difficult to promote. In the traditional steel...

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Problems solved by technology

[0003] However, in multi-story residential buildings, the reinforced concrete special-shaped column structure is difficult to meet the bearing capacity requirements due to the limitation of the length and thickness ratio of the column section, and many problems such as crowded reinforcement in the node area make the advantages of the special-shaped column unable to be comprehensive. reflect, thereby limiting its scope of application, it is difficult to promote

In the traditional steel reinforced concrete special-shaped column structure, except that the stirrups are difficult to close, and the steel bars in the node area are crowded when connecting with reinforced concrete beams or steel reinforced concrete beams, if no shear connectors are provided, the shape between the steel and concrete, Severe slip occurs due to insufficient cohesive force, so that the two cannot work together, resulting in a reduction in their bearing capacity; in order to improve their cooperative work ability, shear studs must be installed, but due to the stress on the contact between the studs and concrete Complex, concrete is easy to break early and lose its bearing capacity. In addition, the studs need to be welded by special welding equipment, which will increase the difficulty and complexity of construction, increase the construction workload, reduce the construction speed, increase the construction period and steel consumption, and thus increase Comprehensive cost of the project

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