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Cable Changing Device with Multiple Pivot Guide Cable Method

A multi-pivot and guide cable technology, applied in the erection/assembly of bridges, bridge parts, bridge maintenance, etc., can solve the problems of affecting road traffic, time-consuming, heavy workload, etc., to increase the safety factor, simple on-site implementation, Reduce the effect of gravity

Active Publication Date: 2016-08-10
CCCC ROAD & BRIDGE SPECIAL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the most commonly used replacement method is to replace the stay cables by installing a temporary hoisting device on the top of the tower. It has the characteristics of high-risk operation; during the hoisting process, the catenary force of the cable to be replaced is relatively large, which makes it difficult to press the anchor and tension it, takes a long time, and affects road traffic

Method used

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  • Cable Changing Device with Multiple Pivot Guide Cable Method
  • Cable Changing Device with Multiple Pivot Guide Cable Method
  • Cable Changing Device with Multiple Pivot Guide Cable Method

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] refer to figure 1 , a kind of multi-fulcrum guide cable method cable changing device of the present embodiment, it comprises the track cable 5 that is arranged between the top of the tower column 6 and the bridge deck 7 and is arranged in the same direction as the stay cable 4 to be changed, and the track cable 5 is laid On the side of the tower column 6, it also includes a rail wheel lifting point system 1, a main traction system 2 inside the tower, and a safety system 3 outside the tower, wherein the main traction system 2 inside the tower and the safety system 3 outside the tower are arranged in sequence from the inside to the outside. On the other side of the tower column 6, the main traction system 2 in the tower is connected to the top of the stay cable 4 to be replaced, and the safety system 3 outside the tower is connec...

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Abstract

The invention discloses a multi-support cable guide method cable replacement device. A stay cable above a stay cable to be replaced is used as a track cable and plays the diagonal bracing function in the hoisting process of the stay cable to be replaced, so that lifting force needed by hoisting is reduced. Multiple track wheels in a track wheel hoisting point system provide multiple hoisting points for the stay cable to be replaced, the stay cable to be replaced vertically and aslant moves along the track cable through a main traction system in a tower, replacement of the stay cable is achieved, and therefore the stay cable to be replaced will not directly and vertically hit the bridge surface from the high altitude, and road traffic is not affected. A safety system tower outside the tower is connected with the stay cable to be replaced again, a double-safety system is formed, and the safety factor is increased further; in addition, the multi-support cable guide method cable replacement device is small in scale, is easy to implement on site and has little influence on traffic.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a multi-support guide cable replacement device for cable-stayed bridges in service. Background technique [0002] The cable-stayed bridges built in my country in the late 1990s have entered a stage of high occurrence of cable-stayed diseases, and replacement of cable-stayed cables is the most effective solution. [0003] At present, the most commonly used replacement method is to replace the stay cables by installing a temporary hoisting device on the top of the tower. It has the characteristics of high-risk operation; during the hoisting process, the catenary force of the cable to be replaced is relatively large, which makes it difficult to press the anchor and tension it, takes a long time, and affects road traffic. Contents of the invention [0004] The purpose of the present invention is to solve the disadvantages of the above-mentioned background technology, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D11/04E01D19/16
CPCE01D19/16E01D22/00
Inventor 陈进盛海军吴俊明朱慈祥晏国泰吴威
Owner CCCC ROAD & BRIDGE SPECIAL ENG
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