Multi-layer composite main cable protection tedlar tape

A multi-layer composite and wrapping tape technology, which is applied to bridge parts, bridges, buildings, etc., can solve the problems of increasingly high airtightness of the main cable, and achieve the effects of high elasticity, isolation and erosion, and effective main cable protection

Pending Publication Date: 2020-07-21
BEIJING RES & DESIGN INST OF RUBBER IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional main cable protection method of suspension bridge is mainly the surface coating method of the main cable. The main cable is protected by painting paint, resin, liquid rubber and other materials on the surface of the main cable for physical isolation. The advantage of this method is that The construction and repair are simple and fast, but in the long-term use process, with the aging, cracking and falling off of the surface coating of the main cable, this method has gradually become unsuitable for the construction requirements of today's bridges, especially as the main cable The application of the internal dry air dehumidification method has higher and higher requirements for the sealing of the main cable

Method used

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  • Multi-layer composite main cable protection tedlar tape
  • Multi-layer composite main cable protection tedlar tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: The main material of the protective layer (1) and isolation layer (5) of the multi-layer composite main cable wrapping tape is saturated polyolefin thermoplastic elastomer, colorless and transparent, and the thickness of the film is 0.6 mm. The main material of the upper functional layer (2) and the lower functional layer (4) of the multi-layer composite main cable wrapping tape is chlorosulfonated polyethylene material, which has excellent weather resistance and heat air aging resistance, and has a good sealing effect. Design requirements The design is red, and the film thickness is 1.2mm. The wrapping tape can be vulcanized and cross-linked at 110°C.

Embodiment 2

[0019] Example 2: The main material of the multi-layer composite main cable wrapping tape protective layer (1) and isolation layer (5) is polyolefin ethylene propylene rubber, and the thickness of the film is 1mm. The main material of the upper functional layer (2) and the lower functional layer (4) of the multi-layer composite main cable wrapping tape is modified binary ethylene propylene rubber, which has good elasticity, sealing and weather resistance, and the thickness of the film is 1.4mm. The wrapping tape is designed in orange according to the design requirements. The wrapping tape can be vulcanized and cross-linked at 130°C.

[0020] After testing, the multi-layer composite main cable wrapping tape is tightly lapped and bonded without gaps, which can effectively prevent internal gas leakage and realize the sealing, isolation and protection of the main cable. The construction is simple and meets the expected design requirements. Implementability and marketing value.

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Abstract

The invention discloses a multi-layer composite main cable protection tedlar tape. The multi-layer composite main cable protection tedlar tape mainly consists of a surface protection layer (1), an upper functional layer (2), a skeleton layer (3), a lower functional layer (4) and an isolating layer (5). According to the multi-layer composite main cable protection tedlar tape disclosed by the invention, in a spiral twining manner, the multi-layer composite main cable protection tedlar tape is twined onto the surface of a bridge main cable; and the tedlar tape can be cured onto the surface of themain cable in the manners of overlapping and hot pressing to protect the main cable steel rope;. The multi-layer composite main cable protection tedlar tape disclosed by the invention has excellent isolation protection effect, and can effectively isolate invasion of natural environments including wind, frost, rain, snow, salt fog, acidic atmosphere and the like to the bridge main cable; and the overlapping intensity and the adhering intensity are high, and long-term service life of the products is guaranteed.

Description

technical field [0001] The invention relates to the field of polymer materials, and relates to the anticorrosion protection of the main cable of a user suspension bridge. [0002] technical background [0003] Suspension bridge, also known as suspension bridge, mainly bears the weight of the bridge road surface through steel cables suspended on the cable tower. Among them, the service life of the steel cable main cable is particularly critical, which is directly related to the service life of the suspension bridge. [0004] The traditional main cable protection method of suspension bridge is mainly the surface coating method of the main cable. The main cable is protected by painting paint, resin, liquid rubber and other materials on the surface of the main cable for physical isolation. The advantage of this method is that The construction and repair are simple and fast, but in the long-term use process, with the aging, cracking and falling off of the surface coating of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H81/06E01D19/16
CPCB65H81/06E01D19/16
Inventor 伍江涛于俊高瑞雪
Owner BEIJING RES & DESIGN INST OF RUBBER IND
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