Method for reinforcing and strengthening main cable of suspension bridge

A technology for suspension bridges and cables, which is applied in the maintenance field of suspension bridges, and can solve problems that affect the driving safety of bridges, main cables are damaged, and main cables cannot be replaced by suspension bridges, etc.

Inactive Publication Date: 2014-12-24
王双其
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  • Claims
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Problems solved by technology

The main cable bears the huge load of the entire bridge deck system and cannot be replaced. If the main cable is damaged to a certain extent, it will directly affect the driving safety of the bridge and ser

Method used

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  • Method for reinforcing and strengthening main cable of suspension bridge
  • Method for reinforcing and strengthening main cable of suspension bridge
  • Method for reinforcing and strengthening main cable of suspension bridge

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Embodiment Construction

[0012] see Figure 1~3 , the reinforcement method of the main cable of the suspension bridge is: a new main cable 1 is erected in parallel along the original main cable just above the original main cable 2. Cable saddle 5 installs new main cable 1, adds prestressed expansion head anti-slip anchor pile 8 at the back of former anchorage 7, and combines with former anchorage and becomes integral body as the anchoring installation of newly adding main cable 1. Cable clips 9 are arranged on both sides of the position corresponding to the cable clip 12 on the original main cable on the new main cable 1, and a mounting groove 11 is opened in the middle of the upper end of the cable clip 9, and a U is articulated in the mounting groove 11. Type suspension rod 10, U-type suspension rod 10 is connected with the lower bottom surface of former suspension rod anchor head 15 with a connecting plate 13, and evenly regulates the internal force of each U-type suspension rod by the nut 14 of U-...

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Abstract

The invention discloses a method for reinforcing and strengthening a main cable of a suspension bridge, and belongs to the technical field of suspension bridge maintenance. The method comprises the steps of erecting a new main cable right above an original main cable along the original main cable in parallel, enabling cable saddles and anchorages of an original bridge to be used as installation fixing points of the new main cable, arranging cable clamps at two sides of a position, which corresponds to a cable clamp on the original main cable, on the mew main cable, respectively forming an installing groove in the middle part of the upper end of each cable clamp, respectively arranging a U-shaped suspension rod in the corresponding installing groove in a hanging way, enabling the U-shaped suspension rods to be in contact with and connected with the lower bottom surface of an original suspension rod anchor head by a connecting plate, and uniformly regulating the internal force of each U-shaped suspension rod. The method for reinforcing and strengthening the main cable of the suspension bridge, disclosed by the invention, has the advantages that the original main cable is uniformly reinforced, and an internal force balance state of an original bridge floor system is maintained; common load bearing of the new main cable and an old main cable is realized, and the problem that original rated load is difficultly borne due to the damage of the main cable of the original bridge is solved.

Description

technical field [0001] The invention relates to a method for reinforcing the main cables of a suspension bridge. The utility model belongs to the technical field of maintenance of suspension bridges. Background technique [0002] The main cable is the main load-bearing structure of the suspension bridge. The main cable bears the huge load of the entire bridge deck system and cannot be replaced. If the main cable is damaged to a certain extent, it will directly affect the driving safety of the bridge and seriously render the bridge scrapped. The inability to replace the main cable due to the structural characteristics of the force is the Achilles heel of the suspension bridge, which has been difficult to solve so far. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide a method for reinforcing the main cables of a suspension bridge. [0004] The reinforcement method of th...

Claims

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Application Information

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IPC IPC(8): E01D22/00E01D19/16E01D11/02
Inventor 王双其吴清明杨博张宇峰
Owner 王双其
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