Bridge steel cable protection system with fireproof, moisture-proof and anti-theft functions

Abstract

The invention discloses a bridge steel cable protection system with fireproof, damp-proof and anti-theft functions. The bridge steel cable protection system comprises an inhaul cable and a protection fireproof layer on the outer side of the inhaul cable. Multiple hoops are evenly fastened to the outer side of the protection fireproof layer at intervals in the length direction of the inhaul cable. The hoops are provided with a plurality of axially through blow-by holes; clamping grooves are formed in the two outer side walls of the hoops in the radial direction and communicate with the blow-by holes; an outer protective sleeve comprises two semi-cylindrical pipes; the butt joint faces of the two semi-cylindrical pipes are axially provided with inserting grooves, and the two semi-cylindrical pipes are fixed in a butt joint mode through the corresponding inserting grooves through connecting clamping plates. The side walls of the semi-cylindrical pipes are provided with axially-through air inlet channels. An insertion opening is formed in the bottom end of each air inlet channel, and an insertion head which protrudes out of the top edge of each semi-cylindrical pipe and can be matched with the insertion opening is arranged at the top end of the air inlet channel; clamping pipes clamped with the clamping grooves are arranged on the inner side walls of the semi-cylindrical pipes, and the clamping pipes are communicated with the air inlet channels and the blow-by holes; and the top edges and the bottom edges of the semi-cylindrical pipes are provided with buckle structures which can be correspondingly clamped and fixed.

Description

technical field [0001] The invention relates to the technical fields of fireproofing, moistureproofing and theftproofing of cables of cable-stayed bridges, and more specifically relates to a bridge steel cable protection system with functions of fireproofing, moistureproofing and theftproofing. Background technique [0002] In order to improve the fireproof performance of cable-stayed bridge steel cables, in the prior art, the surface of the steel cables is first wrapped with a fireproof layer, and basalt fiber strips with a thickness of 3-5 mm are used to spirally wind the surface of the steel cables, and then the winding The outer layer of the formed fireproof layer is bonded to the sealing layer, and the sealing layer is directly wrapped on site by the basalt mesh cloth through the processing technology of four glues and three cloths. [0003] The above structural system can realize the sealing and fire prevention treatment of steel cables, but there are still the followi...

AI Technical Summary

Problems solved by technology

[0006]3. The humidity inside the system due to cloudy and humid weather will cause corrosion to the sealing layer and fireproof layer, which will affect the fireproof effect in the long run

[0007] 4. Since the external protective structure generally adopts an exposed connection method, there is a risk of being stolen, and other connection methods will reduce the stability of the structure

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