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Combined shear connector for corrugated steel web and corrugated steel base plate and construction method

A corrugated steel web and combined technology, which is applied in the erection/assembly of bridges, bridges, buildings, etc., can solve the problems of uncompacted steel-concrete joints, affecting the durability of the structure, and difficult vibration, etc., to achieve the overall mechanical performance Good, simple processing and manufacturing, convenient construction

Active Publication Date: 2017-02-15
THE SECOND ENG CO LTD OF CHINA RAILWAY 14TH CONSTR BUREAU CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a large number of engineering practices have found that when this type of shear key is used in the construction of the bottom plate of the box girder, since the flange plate is located on the top of the shear key, after the bottom plate is molded, it is difficult to pour concrete and vibrate due to the obstruction of the lower flange steel plate. Due to the self-weight of the concrete, the steel-concrete connection is not dense, which seriously affects the durability of the structure

Method used

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  • Combined shear connector for corrugated steel web and corrugated steel base plate and construction method
  • Combined shear connector for corrugated steel web and corrugated steel base plate and construction method
  • Combined shear connector for corrugated steel web and corrugated steel base plate and construction method

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] combine figure 1 As shown, the traditional embedded shear connection key is mainly composed of corrugated steel web 101 , through steel bar 102 and connecting steel bar 103 . Since the corrugated steel web 101 is integrally embedded, and the bottom is connected to the concrete floor 104 through the through steel bars 102, the overall connection and force performance are poor.

[0040] combine figure 2 As shown, the traditional flange-type shear key is mainly composed of corrugated steel web 101 , lower flange steel plate 201 , strip steel plate 202 , and through steel bar 102 . During the base plate construction, the lower flange steel plate 201 is located on the top of the shear key. After the base plate is molded, it is difficult to pour concrete and vibrate due to the obstruction of the lower flange steel plate 201, and t...

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Abstract

The invention discloses a combined shear connector for a corrugated steel web and a corrugated steel base plate and a construction method. The shear connector comprises the corrugated steel web, a lower flange steel plate, a web perforated steel plate, a flange plate strip-shaped perforated steel plate and shear connector construction steel bars. The corrugated steel web, the lower flange steel plate, the web perforated steel plate and the flange plate strip-shaped perforated steel plate are integrally connected through welding, and the shear connector construction steel bars penetrate through holes of the web and the flange plate strip-shaped perforated steel plate and are welded to shear connector longitudinal construction steel bars to form a steel bar skeleton. By adopting the shear connector, the problems that a traditional embedded shear connector is insufficient in integrity, a traditional flange type shear connector is difficult in base plate concrete pouring construction, and the quality of the reinforced concrete joint part is hard to ensure can be solved. Compared with other combined shear connectors, the combined shear connector is simple in structure, reasonable in structure, free of influence on base plate concrete pouring construction and good in reinforced concrete joint part quality and overall working performance and has good technical and economic benefits, and the steel bars are convenient to machine.

Description

technical field [0001] The invention relates to the construction field of a corrugated steel web composite box girder bridge, in particular to a combined corrugated steel web bottom plate shear connection key used to connect the lower flange of the corrugated steel web and the concrete bottom plate of the box girder and construction methods. Background technique [0002] The corrugated steel web reinforced concrete composite box girder structure is a steel-concrete composite structure that is being vigorously promoted in my country. Its main feature is that the web of the traditional concrete box girder is replaced by a high-strength corrugated steel. It is connected with the top and bottom plates by shear keys. Because the corrugated steel web has the characteristics of light weight, high shear strength, and factory prefabrication, the self-weight of the structure is greatly reduced, the structural force is more reasonable, the span of the bridge is increased, and the crack...

Claims

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Application Information

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IPC IPC(8): E01D2/04E01D21/00
CPCE01D2/04E01D21/00
Inventor 谷守法刘明才胡仲春高士亮郭峰王双飞王玉杰尚孝振
Owner THE SECOND ENG CO LTD OF CHINA RAILWAY 14TH CONSTR BUREAU CO LTD
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