Square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint

A technology of concrete columns and connecting nodes, which is applied in the direction of construction and building construction, can solve the problems of small contact area between the ring plate and the column wall, and the difficulty of setting the inner ring plate, so as to increase the direct contact area, increase the thickness of the column wall, The effect of good seismic performance

Inactive Publication Date: 2020-07-28
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned technical problems, the present invention proposes a beam-column joint that is conducive to the industrialization of construction. The applicable conditions are not limited by the size of the square steel pipe column section, and it can effectively solve the difficulty of setting the inner ring plate, and the contact area between the ring plate and the column wall is small. The problem

Method used

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  • Square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint
  • Square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint
  • Square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] According to the size of the square steel pipe 1 and the size of the steel beam 2, the outer diameter side length and the inner diameter side length and the ring plate length of the upper short sleeve pipe 31 and the lower short sleeve pipe 41 are determined.

[0045] According to the size of the square steel pipe 1 and the size of the steel beam 2, the upper short casing 31, and the lower short casing 41, the inner diameters of the upper outer ring plate 32 and the lower outer ring plate 42, the minimum width of the ring plate, and the thickness of the ring plate are determined. The section flexural strength of beam 2 determines the number of bolt holes in the beam flange, the spacing and arrangement of bolt holes, and then determines the length of the ring plate.

[0046] The upper short casing 31 and the upper outer ring plate 32 are connected by surrounding welding on all sides to form the upper outer ring casing plate 3 .

[0047] The lower short casing 41 and the ...

Embodiment 2

[0054] The node shear bearing capacity of the present invention will be described below. (The following component dimensions are in mm)

[0055] In order to separately evaluate the effect of short casings on the shear capacity of joints, the square concrete-filled steel tube column-steel beam full-bolt outer ring plate joint without short casings is used as a comparison model to illustrate the mechanical properties of the new type of joints with short casings. Performance, using the finite element analysis software ABAQUS to conduct finite element analysis on the nodes.

[0056] The size of the joint without short casing is as follows: the joint column is a square section of 250×250 square section, the wall thickness is 10, and the height is 3000 square steel tube concrete column; Sectional steel; the length of the outer ring plate is 870, the width of the outer ring plate is 250, the thickness of the outer ring plate is the same as that of the beam flange, the size of the op...

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PUM

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Abstract

The invention discloses a square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint. The square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint comprises a square steel tube, the square steel tube is sleeved with an upper outer ring sleeve plate and a lower outer ring sleeve plate, the upper outer ring sleeve plate comprises an upper short sleeve, an inner surface of the upper short sleeve is connected with the square steel tube, an outer surface of the upper short sleeve is connected with an upper outer ring plate, the lowerouter ring sleeve plate and the upper outer ring sleeve plate are of the same structure, the lower outer ring sleeve plate comprises a lower short sleeve and a lower outer ring plate, and a steel beam is connected between the upper outer ring sleeve plate and the lower outer ring sleeve plate. The distribution of a column wall yield line is expanded, the column wall rigidity of a joint domain isimproved, and the contribution of an outer ring plate to the joint bearing capacity under the action of external load is increased; the defect that the rigidity at the joint is insufficient due to thefact that an inner ring plate is not arranged is overcome; by adopting the method, the field operation amount is small, the steel structure construction efficiency is improved, the material utilization rate is increased, and good economic benefits and social benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of multi-storey and high-rise buildings, in particular to a square steel pipe concrete column-steel girder outer ring casing plate bolt connection node. Background technique [0002] With the continuous development of my country's construction industry, high-rise and super high-rise buildings have gradually become the mainstream development trend in the current construction field. As a traditional composite structure, the steel tube concrete structure is widely used in super high-rise buildings due to its high bearing capacity and convenient construction. being widely used. As a key part of the structure, nodes not only involve the connection mode between components, but also directly affect the overall stiffness and bearing capacity of the structure under external loads. [0003] Diaphragm joints are common connection joints between square concrete-filled steel tube columns and steel beams, and their main f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/24E04B1/58
CPCE04B1/2403E04B2001/2415E04B2001/2418E04B2001/2421E04B2001/2454
Inventor 李帼昌刘旭
Owner SHENYANG JIANZHU UNIVERSITY
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