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Wavy-edge flange plate combined-structure connecting key

A combined structure and flange plate technology, applied in building construction, construction, etc., can solve problems such as reducing shrinkage stress redistribution, achieve the effects of reducing shrinkage stress redistribution, increasing contact surface, and improving shear performance

Active Publication Date: 2013-12-11
ZHEJIANG CTB WAVEFORM STEEL WEB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the disadvantages in the prior art that when the temperature is constant, the concrete in the composite structure has shrinkage and creep, but the straight steel plate does not expand and contract, which leads to the stress redistribution of the composite structure, resulting in bad phenomena such as cracking of the concrete, etc. , provides a method of connecting the concrete with the corrugated flange plate, the stretching force changes from the traditional tension and compression state to the curved state, forming a bending shrinkage effect, and the corrugated flange plate can change synergistically with the concrete, reducing the shrinkage Stress redistribution effectively reduces concrete cracking; at the same time, the contact surface between the corrugated flange plate and concrete increases, which improves the shear resistance of the composite structure.

Method used

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  • Wavy-edge flange plate combined-structure connecting key
  • Wavy-edge flange plate combined-structure connecting key
  • Wavy-edge flange plate combined-structure connecting key

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The connection key of the combined structure of the wave edge flange plate, such as figure 1 , 2 , 3, and 4, including corrugated steel web 1, corrugated flange plate 2, concrete 3, one side of corrugated flange plate 2 is welded with corrugated steel web 1, and the other side is connected with concrete 3, corrugated The side edges of the side flange plate 2 along the length direction are wave-shaped 21 .

[0026] The wave height of the two side edges of the wave-side flange plate 2 along the length direction is 2 mm. The wave height of the outermost ends of both sides of the wave edge flange plate along the length direction is within 25 mm. In this embodiment, the wave height of both sides of the wave edge flange plate 2 along the length direction is 2.51 mm.

[0027] The corrugated flange plate 2 is welded with connecting accessories, and the connecting accessories are connected with the concrete 3 . The connecting accessories are pegs 4 or perforated steel plates...

Embodiment 2

[0030] The wave height of the outermost ends of both sides of the wave edge flange plate along the length direction is within 25 mm. In this embodiment, the wave height of both sides of the wave edge flange plate 2 along the length direction is 5.5 mm.

[0031] The root of the stud 4 welded to the corrugated flange plate 2 is wrapped with an elastic rubber ring 41, and the thickness of the elastic rubber ring 41 is 0.6 mm. The function of the elastic rubber ring at the root of the stud is to reduce the root of the stud when the shrinkage of the concrete is greater than the cooperative shrinkage of the corrugated flange plate, or the shrinkage of the concrete lags behind the cooperative shrinkage of the corrugated flange plate. The shear force increases the space for the studs to bend, and at the same time ensures the connection between the studs and the concrete. The elastic rubber ring 41 is vinyl, polyurethane or silicone compound.

[0032] The perforated steel plate 5 is a...

Embodiment 3

[0035] The wave heights of the two side edges of the wavy flange plate 2 along the length direction are greater than 2 millimeters and less than 25 millimeters. The wave height of the outermost ends of both sides of the wave edge flange plate along the length direction is within 25mm. In this embodiment, the wave height of both sides of the wave edge flange plate 2 along the length direction is 15mm.

[0036] The corrugated flange plate 2 is welded with connecting accessories, and the connecting accessories are connected with the concrete 3 . The connecting accessories are pegs 4, and the roots welded between the pegs 4 and the corrugated flange plate 2 are wrapped with elastic rubber rings 41, and the thickness of the elastic rubber rings 41 is 0.8 mm. The elastic rubber ring 41 is tapered and is socketed at the root of the stud. , reduce the root shear force of the stud, increase the activity space of the stud when it is bent, and at the same time ensure the connection perf...

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Abstract

The invention relates to a combined-structure connecting key, and discloses to a wavy-edge flange plate combined-structure connecting key, which comprises a corrugated steel web (1), a wavy-edge flange plate (2) and concrete (3), wherein one side of the wavy-edge flange plate (2) is welded together with the corrugated steel web (1), and the other side is connected with the concrete (3); the edges of both sides of the wavy-edge flange plate (2) along a length direction are in wavy forms (21). According to the wavy-edge flange plate combined-structure connecting key, the wavy-edge flange plate is connected with the concrete, extension and retraction force is switched from a traditional tension and compression state to an anti-bending state to form bending and shrinking effects, and the wavy-edge flange plate can change along with concrete, so that redistribution of shrinkage stress is reduced, and cracking of the concrete is reduced effectively; meanwhile, the contact area between the wavy-edge flange plate and the concrete is increased, so that anti-shearing performance of the combined structure is improved.

Description

technical field [0001] The invention relates to a combined structure connecting key, in particular to a corrugated flange plate combined structure connecting key. Background technique [0002] At present, under the condition of constant temperature, the concrete in the composite structure has shrinkage and creep, but the straight steel plate will not expand and contract, causing the stress redistribution of the composite structure, resulting in cracking and other undesirable phenomena in the concrete, affecting the structure of the composite structure Strength and service life. Contents of the invention [0003] The present invention aims at the disadvantages in the prior art that when the temperature is constant, the concrete in the composite structure has shrinkage and creep, but the straight steel plate does not expand and contract, which leads to the stress redistribution of the composite structure, resulting in bad phenomena such as cracking of the concrete, etc. , p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/41
Inventor 孙天明周君威
Owner ZHEJIANG CTB WAVEFORM STEEL WEB