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Device for replacing stay cable of cable-stayed bridge

A technology for cable-stayed cables and cable-stayed bridges, which is applied in the field of cable-stayed cable replacement equipment for cable-stayed bridges, and achieves a strong universal effect

Inactive Publication Date: 2013-03-06
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to design a quick replacement device for the cable-stayed cables of cable-stayed bridges to solve the problem that the cable-stayed cables need to be replaced when they are damaged

Method used

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  • Device for replacing stay cable of cable-stayed bridge

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Embodiment Construction

[0014] Such as figure 1 As shown, the stay cable replacement device consists of a second anchorage 6, a lifting lug 7, an underpinning bucket 8, a connector 9, a through-type hydraulic jack 10, a through-type load sensor 11, a computer data acquisition system 12, a It is composed of a stretching rod 13, a chain block 14 and a first anchor 15.

[0015] Specific layout form: the tensioning extension rod 13 is fixed on the cable-stayed cable 1 to be replaced by the connector 9, so that the cable-stayed cable 1 to be replaced and the tensioning extension rod 13 are on the same straight line, and the lifting lug 7 is fixed on the main cable-stayed bridge. On the beam 4, the length of the distance from the root of the stay cable is moderate. The underpinning bucket 8 is connected to the lifting lug 7 by a chain hoist 14. On the outside of the underpinning bucket 8, there are respectively installed through-type The hydraulic jack 10 , the through-type load sensor 11 and the tension ...

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Abstract

The invention discloses a device for replacing a stay cable of a cable-stayed bridge. The device is used for replacing a stay cable which is to be replaced and is connected to the girder of the cable-stayed bridge, and comprises a tensioning device and a computer data acquisition system which are mounted on the stay cable to be replaced. The device disclosed by the invention has the advantages that (I) the device can control the cable force replacing process in real time through the computer data acquisition system so as to know the cable force at any moment; (II) the device can replace jacksof different tonnages so as to replace the stay cables of different cable forces; and (III) the stay cable replacing device can adapt to the replacement of stay cables of different angles and lengths, and has stronger universality.

Description

technical field [0001] The invention relates to a replacement device for cable-stayed cables of a cable-stayed bridge, which belongs to the field of civil engineering maintenance. Background technique [0002] Cable-stayed bridge, also known as cable-stayed bridge, is a bridge in which the main girder is directly pulled on the bridge tower by many cables. structural system. It can be regarded as a multi-span elastically supported continuous beam with cables instead of piers. It can reduce the bending moment in the beam body, reduce the height of the building, reduce the weight of the structure, and save materials. A cable-stayed bridge consists of a cable tower, a main girder, and a cable-stayed bridge. [0003] During long-term use, the cable-stayed cables of cable-stayed bridges will suffer from various diseases, mainly including: first: the upper and lower anchor heads are rusted; second: the PE sheath is aging, cracked, and damaged; Three: Water accumulation in the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00
Inventor 袁爱民周元华吉伯海程磊科徐敏
Owner HOHAI UNIV