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Skew-inhaul-cable deviation-rectifying device

A technology for cable-stayed cable rectification and outer steel tube, applied in the cable-stayed bridge cable field, can solve the problems of increased workload, weakened strength of embedded pipes, inability to accurately design the eccentricity of shock absorbers, etc. The effect of cable deflection

Inactive Publication Date: 2008-12-31
FAERSHENG ZHUDIAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the former, since the degree of deviation between the embedded pipe and the cable during bridge construction cannot be known exactly, the degree of eccentricity of the shock absorber cannot be precisely designed, and the effect of deviation correction is not ideal
The latter will cause increased workload, weakened embedded pipe strength, poor surface appearance and other defects

Method used

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  • Skew-inhaul-cable deviation-rectifying device
  • Skew-inhaul-cable deviation-rectifying device
  • Skew-inhaul-cable deviation-rectifying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as Figure 6 As shown, the deviation correcting device of the present invention is located inside the embedded pipe 8 . The outer steel pipe 2 of the deviation correction device is welded into one with the embedded pipe 8 . In the case that the axes of the embedded pipe 8 and the stay cable 7 do not coincide, first apply an external force on the stay cable 7 to make it move in the opposite direction of the offset, and install the shock absorber 6 into the steel pipe 5 in the deviation correction device Between stay cable 7. Then adjust the position of the stay cable 7, the shock absorber 6 drives the inner steel pipe 5 to move radially along the stay cable 7, so that the filling material 3 flows and fills between the outer steel pipe 2 and the inner steel pipe 5, so that the inner steel pipe 5 and the shock absorber The axis of the device 7 coincides with the axis of the stay cable 7. When the external force on the stay cable 7 is removed, the inner steel pipe 5...

Embodiment 2

[0026] Such as Figure 7 As shown, the deviation correcting device of the present invention is located outside the embedded pipe 8 . The outer steel pipe of the deviation correction device is connected with the embedded pipe 8 by bolts.

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Abstract

The invention relates to a canting-pull dragline error correcting device that includes external steel pipe, inner steel pipe, end seal board, sealing component, and filling material. The external steel pipe is outside the inner steel pipe, two ends of external steel pipe extending out of inner steel pipe a certain distance. The end seal board has two components, as well as the sealing component. The end seal board seals inner and external steel pipe with sealing component to form sealing cavity, the filling material is filled in it. The filling material could flow between the external steel pipe and the inner steel pipe. Adjusting the location of inner steel pipe, the axis of canting-pull dragline could be superposition with that of pre-buried pipe. It could be widely used in canting-pull bridge structure and arch bridge structure.

Description

technical field [0001] The invention relates to a stay cable of a cable-stayed bridge, in particular to a deviation correcting device for a stay cable of a cable-stayed bridge. It belongs to the field of road and bridge technology. Background technique [0002] At present, in the construction process of cable-stayed bridges, there is always a certain deviation in the installation and positioning of the embedded pipes, so after the cables are installed and stretched, the axes of the cables do not coincide with the axes of the embedded pipes (Figure 1) . Sometimes the deviation between the two is very large, and in severe cases, the cable will contact the inner wall of the embedded pipe, resulting in the failure of the shock absorber to be installed. At present, the general method to solve this problem is: when the cable is not in contact with the embedded pipe, the shock absorber is set to be eccentric; when the cable is in contact with the embedded pipe, the cut embedded p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/00E01D11/04
Inventor 赵军金平费汉兵
Owner FAERSHENG ZHUDIAN NEW MATERIAL
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