Reinforcement connection structure and method of box-shaped steel-reinforced concrete column and reinforced concrete beam

Abstract

The invention provides a steel bar connecting structure and method for a box type combined steel and concrete column and a reinforced concrete beam and relates to the technical field of building structures. The structure and the method aim at the problems that because transverse bars and longitudinal bars are arranged in a staggered mode at the joint position of a beam column, the thickness of a concrete covering layer can not be ensured, and the bearing ability of a steel corbel is weakened. A steel corbel is connected to profile steel in the box type combined steel and concrete column. The distance from the surfaces of wing edges of the steel corbel to the surface of the beam is larger than or equal to the sum of the thickness of the concrete covering layer and two times of the diameter of the steel bars. One end of a Z-shaped steel bar connector and one end of a straight steel bar connector are connected to the upper wing edge and the lower wing edge respectively, and the other end of the Z-shaped steel bar connector and the other end of the straight steel bar connector are connected with the longitudinal bars in the beam. The transverse bars of the reinforced concrete beam penetrate through the profile steel through the outer side of the steel corbel. According to the construction method, the upper ring edge and the lower wing edge of the steel corbel are fixedly connected with the Z-shaped steel bar connector and the straight steel bar connector respectively, the longitudinal bars and the steel bar connector are connected in a threaded mode, and the transverse bars penetrate through the profile steel through the upper wing edge and the lower wing edge of the steel corbel.

Description

Technical field [0001] The invention relates to the technical field of building structures, in particular to a steel bar connection structure of a box-shaped steel-reinforced concrete column and a reinforced concrete beam and a connection method thereof. Background technique [0002] The rigid structure is a new type of building structure formed by steel-enclosed reinforced concrete. Compared with the reinforced concrete structure, the rigid structure effectively reduces the cross-sectional size of the component and increases the use space of the building; it is similar to the steel structure Compared with the rigid structure, the amount of steel is saved, the cost is reduced, and the fire and corrosion resistance are improved. With the increase of building height and the continuous improvement of the performance of civil air defense underground engineering, the rigid structure as an efficient structural system has been widely promoted and applied. [0003] However, due to the div...

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Problems solved by technology

[0007] In the construction of beam-column joints of existing stiff structures, the transverse and longitudinal bars in reinforced concrete beams are arranged alternately at the beam-column joints, and the lower transverse bars need to pass through the web of the steel corbel, resulting in the loss of the concrete cover at the beam-column joints. The thickness cannot be guaranteed, which affects the construction quality and weakens the bearing capacity of the steel corbel. The purpose of the present invention is to provide a steel bar connection structure and method for a box-shaped steel reinforced concrete column and a reinforced concrete beam, so that the transverse bar can be placed on the steel corbel. Section steel is passed above and / or below the leg, and longitudinal bars are connected to the upper and lower flanges of the steel corbel through steel joints, avoiding the staggered arrangement of the two, thus ensuring the overall bearing capacity of the steel corbel and the thickness of the concrete cover. Improved construction quality

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