Cable anchoring anti-corrosion structure of stayed-cable bridge and anti-corrosion technology

Abstract

The invention provides a cable anchoring anti-corrosion structure of a stayed-cable bridge. The cable anchoring anti-corrosion structure comprises cables and embedded pipes, wherein one end of each cable is anchored in concrete; one end of each embedded pipe is embedded in the concrete; the embedded pipes are arranged on the cables in a sleeving manner; and waterproof cases are arranged at the other ends of the embedded pipes and are connected to protective pipes arranged on the cables in a sleeving manner. The waterproof cases of the cable anchoring anti-corrosion structure are of flexible structures, adapt to the force movement and vibration of the stayed cables, and can ensure that the connection is effective for a long time.

Description

technical field [0001] The invention relates to the technical field of health detection and protection of civil engineering bridges, in particular to an anti-corrosion structure and anti-corrosion process for cable-stayed cable anchorage of cable-stayed bridges. Background technique [0002] Cable-stayed bridge is one of the most widely used bridge types in China. It has the advantage of being more economical than other structural forms, so it has been greatly developed. As an important component of a cable-stayed bridge, cable-stayed cables play an important role in the safety and durability of the bridge. The stay cables are generally arranged outside the beam body and are directly in contact with the atmosphere, so they are prone to corrosion. The corrosion protection of the stay cables is very important and necessary. According to the cable-making process of stay cables and the working state of stay cables in bridge use, it is considered that the anti-corrosion protecti...

AI Technical Summary

Problems solved by technology

During the normal service period of the cable-stayed bridge, the vibration of the cable-stayed cables, the aging of the rubber sealing ring or other reasons such as construction will cause the seal to be not tight, and the accumulated water will easily seep into the connecting tube, resulting in the accumulation of water in the lower casing, and the connection between the steel wire and the anchor cup. If the connecting cylinder and rubber sealing ring are immersed in water, the high-strength steel wire in this part will be corroded, which will reduce the service life of the cable-stayed bridge and pose a safety hazard

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