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

A technology for cable-stayed bridges and cable anchors, applied in bridges, bridge parts, bridge materials, etc., can solve the problems of reducing the service life of cable-stayed bridges, easily seeping water into the connecting tube, and not tight sealing, etc., and achieves convenient construction Fast, remarkable waterproof effect, long-term effective effect of connection

Pending Publication Date: 2019-04-09
SOUTHEAST UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0025] The present invention will be further described below in combination with specific embodiments.

[0026] like Figure 1-3 As shown, a cable-stayed cable anchorage anti-corrosion structure of the present invention includes a cable 1, and one end of the cable 1 is anchored in the concrete through the lower anchor head 2; it also includes a pre-embedded pipe 5 embedded in the concrete at one end , the embedded tube 5 is set on the cable 1; the other end of the embedded tube 5 is provided with a waterproof cover 3, and the waterproof cover 3 is connected to the protective tube 10 set on the cable 1; the waterproof cover 3 is set on the outside of the cable 1, waterproof The inside of the cover 3 is filled with foam material 9; rubber rings 7 are set on the inside of both ends of the waterproof cover 3, and filled with silica gel 8. The gap, the protective tube 10 is filled with sealing materials, the sealing materials are polysulfide anti-corrosion sealant 11 and non-sulfu...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/14E01D101/40E01D101/30
CPCE01D19/14E01D2101/40E01D2101/30
Inventor 吴刚王仕青龙跃杨美群
Owner SOUTHEAST UNIV
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