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Concrete column-beam joint connector, concrete column joint region steel sleeve and construction method

A technology of concrete beams and concrete columns, which is applied in the direction of architecture and building construction, can solve the problem that the integrity and lateral stiffness of prefabricated structures are not as good as cast-in-place structures, and the connection of prefabricated components is not as stable as cast-in-place structures, industrialization, and modules The problem of low degree of automation is solved, and the installation process is stable and convenient, eliminating the need for hoop binding and reducing on-site construction operations

Pending Publication Date: 2020-03-27
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] First, on-site construction is difficult. During on-site installation, due to the connection problems caused by the tolerance of prefabricated components, the proficiency of the installers, and the environmental factors at that time, the on-site construction is difficult.
[0005] Second, the degree of industrialization and modularization is low, and each connector has not been standardized;
[0006] Third, the integrity is poor. Because prefabricated components often have component size errors, and the prefabricated concrete structure still needs to pour concrete on site at the joints of the components, the bonding of the old and new concrete on the contact surface is poor, making the prefabricated assembly The connection between the prefabricated components is not as stable as that of the cast-in-place structure, resulting in the fabricated structure being inferior to the cast-in-place structure in terms of integrity and lateral stiffness

Method used

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  • Concrete column-beam joint connector, concrete column joint region steel sleeve and construction method
  • Concrete column-beam joint connector, concrete column joint region steel sleeve and construction method
  • Concrete column-beam joint connector, concrete column joint region steel sleeve and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0064] A steel sleeve for the joint area of ​​a concrete column, comprising angle steel 5 distributed at the four corners of the concrete column, several longitudinal bars 8 of reinforced concrete columns inside the angle steel, positioning stirrups 9 on the lower side of the angle steel, and lower side stirrups 9 of the positioning stirrups 24. A certain number of tie plates between every two angle steels 5. 4. The first positioning steel plate at the bottom between every two angle steels 5 in the direction of the first U-shaped steel concrete beam. 6. The top of the two angle steels in the direction of the first U-shaped concrete steel beam. The upper flange of the first joint area connects the angle steel 2, the second positioning steel plate 12 at the bottom between every two angle steels 5 in the direction of the second U-shaped steel concrete beam, and the upper wing of the second joint area at the top of the two angle steels in the direction of the second U-shaped steel c...

Embodiment 3

[0087] The present invention also provides a detection method for concrete column-beam joints, the specific detection steps are as follows:

[0088] Select 24 steel bars with a diameter of 12mm for the longitudinal reinforcement in the concrete column. The longitudinal reinforcement adopts HRB500 steel reinforcement. 10mm, HPB235 grade smooth round steel bar for positioning stirrups; Q345 steel for steel, L100×8 for four angle steels, steel plate for upper flange of node area—40×8×600, connecting angle steel for upper flange of node area L100×50× 8. Tie steel plate -50×8×300, positioning steel plate L150×50×8, lower flange steel plate in node area—75×8×600, web connecting plate in node area—150×6×525, U-shaped steel concrete Beam upper flange—50×6×2010, U-shaped steel concrete beam web—514×3×2010, U-shaped steel concrete beam lower flange—300×5×2010, and the section size of the end plate is 800mm×800mm×10mm. According to Example 1, a new type of reinforced concrete beam-colum...

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Abstract

The invention discloses a concrete column-beam joint connector, a concrete column joint region steel sleeve and a construction method and belongs to the technical field of buildings and structural engineering. According to the reinforced concrete column and U-shaped steel reinforced concrete beam joint connector, the beam-column connector is composed of the joint region steel sleeve and a beam-column joint connecting structure. The joint region steel sleeve is fixed to a longitudinal rebar through a positioning stirrup, lower column concrete is poured to the positioning stirrup, then a U-shaped steel beam and the joint region steel sleeve are connected through the joint, and finally concrete is poured into a joint region and the U-shaped steel beam. The joint region steel sleeve replaces the stirrup and a steel tie bar, joint region concrete pouring is convenient, and a beam end connecting structure is easily mounted on site; and the U-shaped steel beam serves as a formwork, concrete pouring is convenient, the joint region and the U-shaped steel beam concrete are overall poured, and the rigidity of the joint region is improved. The whole joint on-site workload is small, mounting iseasy and convenient, and the joint performance is excellent.

Description

technical field [0001] The invention relates to a concrete column-beam node joint and a steel sleeve in the node area thereof and a construction method, which belong to the technical field of architecture and structural engineering. Background technique [0002] my country promotes the industrialization of new buildings. Prefabricated buildings stand out for their advantages such as convenient and mechanized construction, green and energy-saving environment, and standardized design management. They also combine the three technologies of "low energy consumption, integration, prefabrication and cast-in-place" to maximize their strengths and circumvent their weaknesses. This has opened up the construction industry new milestone. However, my country's prefabricated buildings started late, and due to limitations in architectural design and construction technology, my country's prefabricated buildings lag behind the United States, Japan and other countries. The node connection pro...

Claims

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Application Information

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IPC IPC(8): E04B1/58
CPCE04B1/185
Inventor 邹昀时建新康金鑫周杭飞王城泉李蜀豫
Owner JIANGNAN UNIV