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Corrugated Steel Web Composite Beam Cable Tower Beam Connection System and Construction Method

A corrugated steel web and connection system technology, applied in bridge forms, bridges, bridge construction, etc., can solve problems such as many influencing factors, concrete freeze-thaw damage, and cable tower beam cracking.

Active Publication Date: 2020-07-24
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Excessive tensile stress will lead to cracking of the tower beam
Although the code allows cracks in reinforced concrete members, considering that the external conditions of the cable tower beam in the actual bridge construction and operation state are relatively complex, and there are many influencing factors, there will be steel corrosion and concrete freeze-thaw damage after long-term operation.

Method used

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  • Corrugated Steel Web Composite Beam Cable Tower Beam Connection System and Construction Method
  • Corrugated Steel Web Composite Beam Cable Tower Beam Connection System and Construction Method
  • Corrugated Steel Web Composite Beam Cable Tower Beam Connection System and Construction Method

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[0026] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0027] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof;

[0028] The "horizontal longitudinal bridge arrangement" mentioned in the present invention refers to the horizon...

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Abstract

The invention provides a corrugated-steel-web-composite-beam-form-cable-tower-beam connecting system and a construction method. A corrugated-steel-web beam serves as a cable tower beam, and replaces an original reinforced-concrete-form beam, the bending tensile resistance of the cable tower bam is improved, transverse connection between cable towers is enhanced, and the material performance of steel is fully developed; the dosage of longitudinal bending-resistant reinforcing steel bars and the dosage of concrete in the original reinforced concrete beam can also be decreased, and the structuraldead weight is reduced; prestress is applied with the external prestress technology, the utilization rate of materials is increased, the structural wholeness is enhanced, and concrete cracking is effectively avoided; a web, a top-face steel plate and a bottom-face steel plate are integrally connected through local welding, the engineering quantity of welding is decreased, construction is convenient, and economies are high.

Description

technical field [0001] The invention relates to the field of structural design of corrugated steel web composite girders, and in particular designs a cable tower beam in the form of corrugated steel web composite beams applied to the connection structure of cable towers of cable-stayed bridges and a specific construction method. Background technique [0002] During the construction of a cable-stayed bridge with a small radius of curvature, the main girder is on a flat curve with a radius of 800m. When the cable-stayed cables are stretched, the cable tower will be displaced to the inside of the curve. The lateral displacement of the two tower columns will cause the deformation of the beam of the cable tower, which will further cause a large tensile stress at the position of the top and bottom plates at the end of the beam. Excessive tensile stress will lead to cracking of the tower beam. Although the code allows cracks in reinforced concrete members, considering that the ext...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D2/00E01D2/02E01D11/04E01D101/32
CPCE01D2/00E01D2/02E01D11/04E01D2101/32
Inventor 张峰高华睿陆小蕊高磊刘佳琪
Owner SHANDONG UNIV
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