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A node connection device for reinforced concrete columns and steel beams

A reinforced concrete column and node connection technology, which is applied in the direction of architecture and building construction, can solve the problems of poor energy consumption of connection nodes, failure to achieve rapid recovery, and overall damage of beams and columns, and achieve strong energy consumption and construction efficiency. Height, the effect of restoring the function of beams and columns

Active Publication Date: 2021-06-11
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the node connection between the reinforced concrete column and the steel beam is mainly realized by embedding the steel beam into the reinforced concrete column that has just been poured. Due to the need for on-site wet work, this connection node has the defect of low construction efficiency, and because the steel The beam needs to be embedded in the column as a whole, and the energy dissipation capacity of this connection node is poor. In addition, once an earthquake occurs, the beam-column connected by this node connection method is very prone to overall damage, and cannot achieve rapid recovery after the earthquake

Method used

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  • A node connection device for reinforced concrete columns and steel beams
  • A node connection device for reinforced concrete columns and steel beams
  • A node connection device for reinforced concrete columns and steel beams

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: A node connection device between a reinforced concrete column and a steel beam

[0042] Such as Figure 1-5 A node connecting device 1 between a reinforced concrete column and a steel beam includes a square steel pipe 2, a first connector 3, a second connector 4, and a third connector 5; the upper end and / or lower end of the square steel pipe 2 are correspondingly welded There is a first upper end plate 6 and / or a first lower end plate 7, and several H-shaped steels 8 are welded on the pipe wall of the square steel pipe 2; the first connecting piece 3 is composed of the first channel steel 9 and the first The H-shaped cross-section connector composed of two channel steels 10, its upper flange plate is spliced ​​by the upper flange plate of the first channel steel 9 and the upper flange plate of the second channel steel 10, and its lower flange plate is formed by the second channel steel 10. The lower flange plate of a channel steel 9 and the lower flange ...

Embodiment 2

[0054] Embodiment 2: A method of using a node connection device between a reinforced concrete column and a steel beam

[0055] Specific steps are as follows:

[0056]Use the node connecting device 1 in Embodiment 1; after the H-shaped steel 8 is connected with the first connecting piece 3, connect the H-shaped steel 8 and the first connecting piece through the fastener 19, the reserved hole 13 and the second connecting piece 4 3 are fixed together; after connecting the first connecting piece 3 with the steel beam 17, the first connecting piece 3 and the steel beam 17 are fixed together through the fastener 19, the reserved hole 13 and the third connecting piece 5; according to Specifications of the reinforced concrete column 14 After the concrete pouring mold is placed, concrete is poured into the reinforced concrete column 14 and the inside of the square steel pipe 2 through the pouring hole 19 .

[0057] As a further preference, the fastener 18 is a bolt.

Embodiment 3

[0058] Embodiment 3: a kind of beam column

[0059] The construction method of beam and column sees embodiment 2, wherein:

[0060] Reinforced concrete column: the cross-sectional size of the reinforced concrete column 14 is 400mm×400mm; four steel bars with a diameter of 16mm are selected for the longitudinal reinforcement in the column, and they are arranged symmetrically; The spacing is 200mm; the thickness of the second upper end plate 15 and the second lower end plate 16 is 30mm;

[0061] Node connection device: The square steel pipe 2 of the node connection device 1 has a section size of 400mm×400mm and a thickness of 8mm; the web thickness of the first channel steel 9 and the second channel steel 10 is 5mm, the web height is 260mm, and the flange The width is 60mm, the thickness of the flange is 10mm, and the length of the flange is 200mm; the cross-sectional size of the H-shaped steel 8 is 250mm×300mm×10mm×10mm, and the length of the H-shaped steel 8 is 100mm; the fou...

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Abstract

The invention discloses a node connecting device between a reinforced concrete column and a steel beam, and belongs to the technical field of architecture and structural engineering. This node connection device can be prefabricated in the factory first, and then transported to the construction site for construction. It belongs to a prefabricated structure and has the advantages of high construction efficiency, environmental protection, and energy saving. In seismic design, energy dissipation capacity is also a focus of attention. Among many energy dissipation methods, bolts are an ideal energy dissipation method. The energy dissipation capacity can be increased by sliding between bolts, and this node connects The device just uses bolts to realize the node connection between the reinforced concrete column and the steel beam, and has a strong energy dissipation capacity. The first connecting part of this node connection device is composed of the first channel steel and the second channel steel. The double channel steel can improve the force transmission of the node connection. Once an earthquake occurs, the double channel steel will be destroyed first, so that the columns and beams are damaged. The maximum degree of preservation, so that the beam-column structure can be quickly restored after the earthquake.

Description

technical field [0001] The invention relates to a node connection device for a reinforced concrete column and a steel beam, and belongs to the technical field of architecture and structural engineering. Background technique [0002] Reinforced concrete columns refer to members formed by filling concrete in steel pipes. According to the reinforcement method, reinforced concrete columns can be divided into three types: ordinary steel hoop columns, spiral steel hoop columns and rigid steel column. Among them, ordinary steel hoop columns use ordinary steel hoops to constrain the lateral displacement of longitudinal reinforcement, which is suitable for columns with various cross-sectional shapes; spiral steel hoop columns use spiral steel hoops to restrain the lateral displacement of longitudinal reinforcement and the lateral displacement of core concrete. Deformation, the column loading surface is generally circular or polygonal; the rigid steel column is equipped with section ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/58
CPCE04B1/185
Inventor 邹昀缪嘉炜郑申鸽李蜀豫封剑森
Owner JIANGNAN UNIV