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Anti-sliding device for large-dip-angle space oblique main-cable cable clamp and mounting method of anti-sliding device

A technology with large inclination and anti-slip, applied in the direction of suspension bridges, bridge parts, bridge forms, etc., can solve problems such as large angles and slippage of cable clamps, and achieve the effects of easy installation, reliable positioning, and strong versatility

Pending Publication Date: 2019-11-19
中铁大桥局第七工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the space main cable angle of the large-inclination self-anchored suspension bridge is relatively large, and the suspension cables are also arranged obliquely. Under the influence of the bridge deck load and vibration, the phenomenon of cable clamp slippage is very likely to occur.

Method used

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  • Anti-sliding device for large-dip-angle space oblique main-cable cable clamp and mounting method of anti-sliding device
  • Anti-sliding device for large-dip-angle space oblique main-cable cable clamp and mounting method of anti-sliding device
  • Anti-sliding device for large-dip-angle space oblique main-cable cable clamp and mounting method of anti-sliding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see figure 1 , Figure 6 and Figure 7 As shown, the embodiment of the present invention provides an anti-slip device for a large inclination space oblique main cable clamp, including:

[0038] There are multiple cable clamps 5. The specific number of cable clamps 5 is determined according to the actual design of the suspension bridge. Multiple cable clamps 5 are arranged at intervals along the length direction of the main cable 4. The connecting piece 1 is fixedly connected to both ends of the cable clamp 5 , and the connecting piece 1 is fixedly connected to the side wall of the cable clamp 5 . The pull rod assembly 2 is located between two adjacent cable clips 5 , and the end of the pull rod assembly 2 is connected to the connecting piece 1 . One end of the cable clamp 5 at the top of the main cable 4 is connected to the steel tower 6 through the tie rod assembly 2 , and the steel tower 6 is provided with a connecting piece 1 connected with the tie rod assembly 2 ...

Embodiment 2

[0042] Such as Figure 2 to Figure 5 As shown, the embodiment of the present invention provides an anti-slip device for a large inclination space inclined main cable clamp. The difference between this embodiment and Embodiment 1 is that the connecting piece 1 includes a base plate 11, and the base plate 11 is stamped and formed by a mold. , the base plate 11 is attached to the outer wall of the cable clamp 5 . An installation hole fixedly connected with the cable clamp 5 is provided on the base plate 11 , and a high-strength bolt 8 is inserted into the installation hole to be fixedly connected with the cable clamp 5 . An ear plate 12 is arranged on the top of the base plate 11 , and the ear plate 12 is vertically welded to the base plate 11 , and a through hole is opened on the ear plate 12 , and the through hole is used for penetrating the shaft pin 3 and rotatingly connecting with the tie rod assembly 2 .

[0043]A stiffening plate 13 is connected between the ear plate 12 a...

Embodiment 3

[0048] Such as Figure 1 to Figure 5 As shown, the embodiment of the present invention provides an anti-slip device for the main cable clamp with a large inclination angle space. The difference between this embodiment and Embodiment 1 is that the high-strength bolts 8 include M27-10.9s grade high-strength bolts made of 42CrMo , M27-10H high-strength nut made of 42CrMo and d27 high-strength washer made of 40Cr. The high-strength bolt 8 is used to install the cable clamp 5 and the connecting piece 1 on the main cable 4 , and the high-strength bolt 8 fastens the cable clamp 5 and the connecting piece 1 on the main cable 4 . When installing the high-strength bolts 8, first pre-tighten the high-strength bolts 8 manually with a wrench, and then use a professional through-hole jack to tension them. The fastening force of a single high-strength bolt 8 is 30t. The locking part of the clamp 5 ensures that the cable clamp 5 and the connecting piece 1 are fastened on the main cable 4, so...

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Abstract

The invention discloses an anti-sliding device for a large-dip-angle space oblique main-cable cable clamp and a mounting method of the anti-sliding device, and belongs to the technical field of bridgestructures. The anti-sliding device comprises a plurality of cable clamp bodies, connecting pieces and pull rod assemblies; and the multiple cable clamp bodies are arrayed in the length direction ofa main cable at intervals, the connecting pieces are fixedly connected to the two ends of the cable clamp bodies, each pull rod assembly is located between the every two corresponding adjacent cable clamp bodies, and the ends of the pull rod assemblies are connected with the connecting pieces; and one ends of the cable clamp bodies at the top of the main cable are connected with a steel tower through the pull rod assemblies, the steel tower is provided with the connecting pieces connected with the pull rod assemblies, and the connecting pieces are in welded connection with the steel tower. Theanti-sliding device is provided with the connecting pieces connected to the top end of the steel tower and the two ends of the cable clamp bodies, each pull rod assembly is located between the everytwo corresponding adjacent cable clamp bodies, the pull rod assemblies are rotatably connected with the connecting pieces through shaft pins, the every two adjacent cable clamp bodies are mutually connected together through the corresponding pull rod assembly, the multiple cable clamp bodies are connected into a whole on the main cable in the length direction of the main cable, thus the cable clamp bodies are prevented from sliding on the main cable, and reliable positioning of the cable clamp bodies on the main cable is kept.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to an anti-slip device and an installation method of a large inclined space oblique main cable clamp. Background technique [0002] The cable system is the main force transmission component of the suspension bridge. The bridge deck load is transmitted to the main cable through the suspension cable, and the anti-slip friction between the cable clamp and the main cable can ensure this transmission. If the anti-slip friction of the cable clamp is insufficient, it will cause the cable clamp to slip on the main cable. One will change the angle of the sling to change the stress state of the cable system structure, and the other will damage the anti-rust layer of the main cable and damage the main cable. In order to ensure the structural safety of the whole bridge, relative displacement between the main cable and the cable clamp is not allowed, which requires sufficient anti-slip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/16E01D11/02
CPCE01D19/16E01D11/02
Inventor 樊志飞章德春蒋本俊张友光李勇波聂井华钱照国
Owner 中铁大桥局第七工程有限公司