Method and structure for protecting primary cable system of suspension bridge

A technology for protective structures and suspension bridges, used in bridges, bridge parts, bridge construction, etc., can solve the problems of loss of metal adhesion, reduced corrosion resistance, cracks, etc., and achieve excellent resistance to ultraviolet aging, reduced maintenance costs, and good water resistance. Effect

Inactive Publication Date: 2003-06-04
AVIC BIAM NEW MATERIALS TECH ENG
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Since the main components of dry oil are glycerides of unsaturated fatty acids such as linolenic acid and linoleic acid, they will harden after oxidation and lose their adhesion to metals. Affected by temperature changes and alternating loads, cracks may appear, resulting in corrosion performance degradation

Method used

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  • Method and structure for protecting primary cable system of suspension bridge
  • Method and structure for protecting primary cable system of suspension bridge
  • Method and structure for protecting primary cable system of suspension bridge

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Embodiment Construction

[0017] figure 1 A preferred embodiment of the main cable protective coating structure of the suspension bridge of the present invention is schematically shown. Wherein the main cable 1 is composed of multiple strands of high-strength galvanized steel wires, through a plurality of clamps (not shown in the figure) fixed on the main cable to form a steel wire bundle with a generally circular cross-section. According to the method for protecting the main cable system of the present invention, the surface of the main cable 1 is routinely cleaned to remove rust and other dirt, and then a layer of phosphating primer 2 is firstly applied. The phosphating primer 2 can adopt the XF06-2 type phosphating primer developed by the applicant, which is composed of polyvinyl butyral resin, zinc chromate antirust pigment, solvent and phosphating solution. The phosphating primer has excellent antirust ability, has phosphating and repairing functions on the mechanical damage of the galvanized ste...

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Abstract

A protecting structure for the main cable of suspension bridge is composed of main cable made up of multistrand high-strength zinc-plated steel wire bundles, multiple cable clampers fixed to the main cable and multiple suspension cables fixed to the cable clampers. After the external surface of main cable is anticorrosively treated, a layer of steel wire or strip steel is wound arount it and the external surface of wound layer is treated for protection. Said anticorrosion treatment of main cable is to coat unsulfurized non-drying sealing rubber paste on it. Said protective layer of main cable has same service life as the primary cable.

Description

technical field [0001] The invention relates to a protection method for the main cable system of a suspension bridge and a main cable protection structure obtained by the method. The main cable system includes a main cable composed of multiple strands of high-strength steel wire bundles and a plurality of cable clips fixed on the main cable and a sling secured to each clip. Background technique [0002] The main cable supported on the tower saddle and loose cable saddle on the modern suspension bridge is connected with the bridge deck box girder through the suspension cable fixed on the cable clamp, which is the load-bearing structure of the whole bridge. The main cable is usually composed of more than 10,000 thin steel wires, which are squeezed into steel wire bundles with a generally circular cross-section by cable clamps. It is very important to take effective anti-corrosion protection for the main cable system. [0003] Japanese Patent Publication No. JP 10-77604 discl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C28/00E01D19/16
Inventor 周军辉丁鹤雁严煜焕黄哲龙卢敬贵王景鹤祝泱泱杨海山谭华青黄玖梅廖峰胡洪陈德明谢永勤王宝兰殷秀梅丁明兰
Owner AVIC BIAM NEW MATERIALS TECH ENG
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