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Beam end installation method of stay cable

An installation method and technology of stay cables, which are used in bridges, bridge construction, bridge parts, etc., can solve problems such as difficulty in adapting to stay cables, low traction and anchoring force, etc., and achieve high construction efficiency, uniform traction, and avoidance of The effect of uneven traction

Active Publication Date: 2020-06-09
ROAD & BRIDGE SOUTH CHINA EINGINEERING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small traction and anchoring force that this method can adapt to, it is difficult to adapt to the construction environment where the stay cable needs to be transported for a long distance and the stay cable is heavy.

Method used

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  • Beam end installation method of stay cable
  • Beam end installation method of stay cable
  • Beam end installation method of stay cable

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Embodiment Construction

[0055] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0056]The stay cable is composed of three parts: anchors at both ends, force transmission parts of the middle stay cable and protective materials, and become a stay cable assembly. The stay cables currently used generally include parallel steel wire stay cables and parallel steel strand stay cables. The same specific feature is that the anti-corrosion protection methods include steel wire galvanization and PE protective sleeves. In this embodiment, the end of the stay cable 3 installed on the beam end is called the lower anchor head 31 ....

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Abstract

The invention provides a beam end mounting method of a stay cable. The method comprises the steps of arranging a soft traction device consisting of a power mechanism and a first force transmission mechanism and hoisting the soft traction device to the lower end of a beam end steel anchor box for mounting; conveying the stay cable to make a lower anchor head of the stay cable close to the steel anchor box; adopting a second force transmission mechanism for connecting the soft traction device and the lower anchor head of the stay cable; starting the soft traction device, and conducting tractionon the second force transmission mechanism to lead out the lower anchor head of the stay cable through the steel anchor box; anchoring the lower anchor head of the stay cable, and disassembling the second force transmission mechanism and the power mechanism to complete the beam end mounting process of the single stay cable. By means of the scheme, the stability of force transmission in the beam end mounting process of the stay cable is ensured, and meanwhile the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a method for installing beam ends of stay cables. Background technique [0002] A cable-stayed bridge is a bridge in which the main girder is directly pulled on the tower cables by cable-stayed cables. The main girder can be regarded as a multi-span elastically supported continuous girder with stay cables instead of buttresses. The stay cables can reduce the bending moment in the beam body, reduce the height of the building, reduce the weight of the structure, and save materials. Cable-stayed bridges are mainly composed of cable towers, girders, and stay cables. With the continuous development of bridge technology, cable-stayed bridges are widely used as one of the main types of long-span bridges, and their construction spans are increasing day by day. With the increase, the difficulty of on-site construction and the investment in equipment continue to increase. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/16E01D19/14E01D21/00
CPCE01D19/14E01D19/16E01D21/00
Inventor 刘怀刚张敬弦高世强肖向荣杨卫平李华彬杨杰赵升辉
Owner ROAD & BRIDGE SOUTH CHINA EINGINEERING CO LTD
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