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Method for quickly setting up main ropes of suspension bridge

A technology for suspension bridges and main cables, applied in suspension bridges, bridge construction, erection/assembly of bridges, etc., can solve the problem of low cost, achieve the effects of convenient equipment transportation, conducive to selection and cost control, and improve work efficiency

Active Publication Date: 2015-12-02
NO 7 ENG CO OF CHINA RAILWAY NO 8 ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a fast erection method for the main cable of a suspension bridge to solve the above three problems in the existing construction technology, with faster construction efficiency and lower cost, and is suitable for Main cable traction of cableway bridges in various steep areas and various spans, widths and main cable tensions

Method used

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  • Method for quickly setting up main ropes of suspension bridge
  • Method for quickly setting up main ropes of suspension bridge
  • Method for quickly setting up main ropes of suspension bridge

Examples

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Effect test

Embodiment

[0035] A method for quickly erecting main cables of a suspension bridge, comprising the following steps:

[0036] In the first step, before pouring the anchorage concrete on the opposite bank, a plurality of ground anchor wire ropes and a plurality of alloy tie rods 13 are pre-embedded in the anchorage rear wall 1, and the No. 2 diverting pulley 9 and the fixed pulley block 10 are fixed by the ground anchor wire ropes.

[0037] In the second step, on the construction bank, the wire rope of the No. 1 winch 4 is connected to the fixed end of the coiled main rope 2 after passing through the No. 1 diverting pulley 7, and the No. 1 winch 4 is started to straighten the main rope 2 on the construction bank. And paste the reflective film at the mid-span position of the main cable 2.

[0038] In the third step, on the construction bank, the wire rope of the No. 2 hoist 5 is pulled to the opposite bank by the working cable, and returns to the construction bank after passing through the ...

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Abstract

The invention discloses a method for quickly setting up main ropes of a suspension bridge. The method comprises the steps that one main rope is straightened and looped; a traction system is arranged; the movable end of the main rope is pulled to the opposite bank, and temporary connection is carried out; the traction system is transformed, a fixed pulley block and a movable pulley block are used for continuing to pull the movable end of the main rope to the design position; a fork lug type adjusting lock is manually adjusted, and the vector of the main rope is adjusted to the design requirement; and the rest of main ropes continue to be set up according to the above steps. According to the method, the traction cost of the main ropes of the cableway bridge is greatly reduced, work efficiency is improved, and the method is particularly suitable for traction of main ropes of cableway bridges of various spans, widths and main rope tensions in various precipitous-terrain places with traffic inconvenience.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a method for quickly erecting main cables of a suspension bridge. Background technique [0002] At present, the main cable traction method of domestic cableway bridges is mainly as follows: using a supporting road or a catwalk, and laying steel pipes at even intervals on the supporting road or catwalk, so that the main cable is supported by the supporting road or catwalk, and the working cable The small sports car is pulled along the pallet or catwalk and slides above it. [0003] Disadvantages of this method: [0004] 1. Unnecessary supporting roads or catwalks were set up, which greatly increased the project cost, and the main cable traction efficiency was too low, which slowed down the construction progress; [0005] 2. When the main cable is twisted, it is easy to leave the range of the catwalk or the supporting road; [0006] 3. When encountering a cableway ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D11/02E01D19/16
Inventor 杨希斌彭劲松杨先凤卓顺发张家均高智杨文杰赵青山雷春梅
Owner NO 7 ENG CO OF CHINA RAILWAY NO 8 ENG GRP CO LTD
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