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Direct cable weaving and hanging method for cable strand of suspension bridge

A suspension bridge and cable technology, applied in the field of suspension cables of bridges, can solve the problems of only a few tens of wires to more than one hundred wires, the bulk of the anchorage, and the increase of material consumption, saving manpower and reducing the size of the anchorage. The effect of reducing the number of anchors and reducing the workload

Active Publication Date: 2015-05-06
SHANGHAI PUJIANG CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the PPWS method needs to consider the transportation of cable strands, and requires the production of a large number of logistics and transportation equipment; because the tonnage of cable strands is relatively large, considering the transportation problem, the specification of cable strands can only be reduced to tens of wires to more than one hundred wires; Due to the reduction of strand specifications, anchors had to be added at both ends of the bridge during bridge construction, resulting in bulky anchorage seats and increased material consumption; due to the harsh environment of most bridge construction sites, especially mountainous road transportation, hundreds of tons of cables stock shipping is very difficult

Method used

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  • Direct cable weaving and hanging method for cable strand of suspension bridge
  • Direct cable weaving and hanging method for cable strand of suspension bridge
  • Direct cable weaving and hanging method for cable strand of suspension bridge

Examples

Experimental program
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Embodiment 1

[0017] A method for directly weaving and hanging cables on site for main cable strands of a suspension bridge, comprising sequentially setting weaving equipment, weaving unit strands, pulling unit strands, hot-casting anchors, cooling anchors, installing strand anchors and linear adjustment. 7 steps, the specific steps are as follows:

[0018] When setting up the compilation device, such as figure 1 As shown, the weaving area is set at one end of the suspension bridge tower at the main cable hanging cable construction site, and the weaving equipment 1 is set in the weaving area. Closing device 14, shaping wheel 15, traction unit machine 16, wrapping machine 17 and transition device 18 are formed, and transition device 18 is as figure 2 As shown, it consists of 3 fixed pulleys 181, 2 movable pulleys 182 and 5 pillars 183, the fixed pulley 181 is fixed on the pillars 183, the movable pulley 182 is set on the pillars 183 and slides up and down along the pillars 183, the fixed p...

Embodiment 2

[0026] A method for directly weaving and hanging cables on site for main cable strands of a suspension bridge, comprising sequentially setting weaving equipment, weaving unit strands, traction unit strands, hot-casting anchors, cooling anchors, installing strand anchors, tensioning and Linearly adjust these 8 steps. After setting up the braiding equipment, the braiding unit strands and the traction unit strands are carried out at the same time, that is, the front end of the steel wire starts to pull the unit strands after the braiding of the unit strands is completed, and the rear end of the steel wire continues to weave the unit strands. Strands, and the speed of the traction unit of the steel wire when compiling the unit strands is consistent with the speed of the traction unit of the unit strands when pulling the unit strands. Other steps are all the same with embodiment 1.

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Abstract

The invention relates to the field of cable suspension of bridges, in particular to a direct cable weaving and hanging method for a cable strand of a suspension bridge. A field direct cable weaving and hanging method for the cable strand of the suspension bridge comprises the following steps of: weaving a unit strand; arranging weaving equipment; drawing the unit strand; thermally casting an anchor; cooling an anchor device; arranging a strand anchor device; and linearly adjusting. The method is characterized in that the unit strand is directly drawn after being woven to erect the suspension bridge. The unit strand is woven after the weaving equipment is arranged and before drawing. The method has high working efficiency, and a large quantity of costs is saved.

Description

technical field [0001] The invention relates to the field of bridge suspension cables, in particular to a method for directly weaving and hanging cables for main cable strands of a suspension bridge. Background technique [0002] At present, there are mainly two methods for erecting the main cable of suspension bridges: aerial cable method (AS) and prefabricated cable strand method (PPWS). When using the AS method, a single steel wire is hung on the bridge by using a turntable and traction system, and the turntable shuttles back and forth at both ends of the bridge to erect the steel wires. Since the number of steel wires contained in the strands of the main cable unit is very large, it can reach hundreds of wires. In this way, the turntable needs to run back and forth hundreds of times to satisfy the weaving of a main cable unit strand, and the erection of a main cable requires dozens or hundreds of main cable unit strands, that is to say, a suspension bridge is prepared by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D19/16
Inventor 张海良朱金林顾庆华俞建群谢飞张德刚
Owner SHANGHAI PUJIANG CABLE
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