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Steel bar connecting structure and method for box type combined steel and concrete column and reinforced concrete beam

A technology of reinforced concrete beams and steel-reinforced concrete, applied in building construction, processing of building materials, construction, etc., can solve problems such as weakening the bearing capacity of steel corbels, affecting construction quality, and thickness cannot be guaranteed

Active Publication Date: 2016-03-23
SHANGHAI NO 7 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Steel bar connecting structure and method for box type combined steel and concrete column and reinforced concrete beam
  • Steel bar connecting structure and method for box type combined steel and concrete column and reinforced concrete beam
  • Steel bar connecting structure and method for box type combined steel and concrete column and reinforced concrete beam

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Embodiment 1

[0029] Embodiment 1: This embodiment takes the construction of an underground project as an example. The third underground floor of the project is a reinforced concrete frame structure, and the ground is a steel frame structure. The box-shaped steel-reinforced concrete column on the ground is inserted into the underground floor; There are 84 connection nodes between box-shaped steel reinforced concrete columns and reinforced concrete beams within the range of the top plate. For this reason, the following combination Figure 2 to Figure 4Illustrate the reinforced connection structure of the box-shaped steel-reinforced concrete column and the reinforced concrete beam of the present invention. Steel corbels 3 are arranged on the shaped steel 11 in the box-shaped steel-reinforced concrete column 1. The steel corbel 3 includes an upper flange 31 and a lower flange. 32 and the web 33 between the two, the web 33 has several through holes because the stirrups and tie bars pass through,...

Embodiment 2

[0036] Embodiment 2: Combination Figure 2 to Figure 4 Illustrate the construction method of the steel bar connection structure of the box-shaped steel reinforced concrete column and the reinforced concrete beam of the present embodiment, the specific steps are as follows:

[0037] 1. Make the steel corbel 3 and fix it on the section steel 11 in the box-shaped steel-reinforced concrete column 1, so that the distance between the surfaces of the upper and lower flanges 31, 32 of the steel corbel 3 and the surface of the reinforced concrete beam 2 is greater than that of the concrete The sum of the thickness of the protective layer and twice the diameter of the steel bar, on the upper flange 31 and the lower flange 32 of the steel corbel 3, respectively fix several Z-shaped steel bar joints and straight steel bar joints, and the Z-shaped steel bar joints and straight steel bar joints The other end is connected with a straight thread sleeve one;

[0038] 2. Make the upper and low...

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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 between a box-shaped steel-reinforced concrete column and a reinforced concrete beam and a connection method thereof. Background technique [0002] Stiff structure is a new type of building structure formed by steel-wrapped reinforced concrete. Compared with reinforced concrete structure, stiff structure effectively reduces the cross-sectional size of components and increases the use space of buildings; Compared with the rigid structure, it saves the amount of steel, reduces the cost, and improves the fire protection and anti-corrosion performance. With the increase of building height and the continuous improvement of the performance of civil air defense underground engineering, stiff structure, as an efficient structural system, has been widely promoted and applied. [0003] However, due to the diversity of medium-sized steel materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58E04G21/14
Inventor 陈洪帅崔晓强吴杏弟倪锋池敏华季方
Owner SHANGHAI NO 7 CONSTR