Inhaul cable with sealing structure rain covers and manufacturing method thereof

Abstract

The invention relates to the field of suspension cables of bridge parts, in particular to an inhaul cable with sealing structure rain covers and a manufacturing method thereof. The inhaul cable with the sealing structure rain covers comprises a cable strand body (1). The inhaul cable with the sealing structure rain covers is characterized by further comprising a cable duct (2), shock absorbers (3), a sealant (4 ), the rain covers (5), a sealing ring (6), an end cover (7) and air bags (8), wherein the cable strand body (1) is sleeved with the cable duct (2), and the two shock absorbers (3) arearranged on the cable strand body (1) in a hooped mode; the two ends of the cable duct (2) are correspondingly sleeved with the rain covers (5); the air bags (8) are arranged on the inner side of theend cover (7) and between the outer side of the cable strand body (1) and the inner sides of the rain cover (5). The manufacturing method of the inhaul cable with sealing structure rain covers is characterized by comprising the following steps of in sequence (1) installing the shock absorbers; (2) arranging the rain covers; (3) arranging the air bags and (4) closing. The inhaul cable with sealingstructure rain covers is simple in structure, convenient to install, good in sealing performance and long in durability.

Description

technical field [0001] The invention relates to the field of suspension cables for bridge parts, in particular to a cable with a rainproof cover of a sealed structure and a manufacturing method thereof. Background technique [0002] Stay cables are the main load-bearing components of cable-stayed bridges, once they fail, the bridge cannot be used. At present, the main defect of stay cables is the corrosion of anchorage parts, which will cause failure of stay cables and endanger the safe use of bridges. [0003] Traditionally, a rainproof cover and a rubber ring are provided on the upper opening of the cable guide to prevent rainwater from entering the cable guide and corroding the anchor. In actual use, it was found that due to the unavoidable eccentricity of the cable during installation, the rubber ring in the waterproof cover could not fit tightly and failed, and rainwater entered the cable guide along the gap at the eccentricity. In addition, after the rubber ring has ...

AI Technical Summary

Problems solved by technology

And cause the anchorage of the cable to be corroded

[0004] At present, some new methods are used on some cable-stayed bridges. One is to weld the PE water-stop cap between the upper opening of the rain cover and the PE sheath of the cable. Although this method has a certain waterproof effect, it is harmful to PE. The reheating of hot melt accelerates the aging of PE, and eventually causes the sheath to fail, which will cause more serious consequences such as steel wire corrosion

The second is to install a stainless steel cylinder and an air bag on the top of the rain cover to stop the water. This method has been proven to be very effective, but the structure is more complicated, the installation steps are more, and the construction period is longer.

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