A Fireproof Sheath for Bridge Cable Protection
A technology of fireproof sheath and bridge cables, applied in bridges, bridge parts, bridge construction, etc., can solve problems affecting the safety and durability of bridge structures, increase bridge maintenance costs, shorten bridge service life, etc., and achieve lower temperature , Improve stability and firmness, and reduce maintenance costs
Inactive Publication Date: 2016-08-24
HEFEI UNIV OF TECH
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Problems solved by technology
However, fires caused by traffic accidents in recent years pose a serious threat to the cables of the above-mentioned bridges.
The fire on the bridge causes the strength loss and modulus reduction of the stress components such as the cables, which seriously affects the safety and durability of the bridge structure, which not only increases the maintenance cost of the bridge, but also shortens the service life of the bridge
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[0019] The present invention will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.
[0020] Such as Figure 1-4 As shown, a fire protection sheath for bridge cable protection includes a high polyethylene sheath layer 2 sheathed on the outside of the cable 1, and the high polyethylene sheath layer 2 is provided with a protective mechanism on the outside. The protection mechanism includes four protection units 3, the four protection units 3 are evenly arranged along the circumferential direction of the axis of the cable 1, and the four protection units 3 are connected end to end. The protection unit 3 includes a limit portion 32, a main body 31, and a clamp The section 33 of the main body 31 along the direction perpendicular to the axis of the cable 1 is...
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The invention relates to a fireproof sheath for protecting a bridge stay rope. The fireproof sheath comprises a high polyethylene sheath layer sleeving the stay rope; a protection mechanism is arranged outside the high polyethylene sheath layer; the protection mechanism comprises four protection units; the four protective units are evenly arranged in the circumferential direction and connected end to end; each protection unit comprises a limiting part, a main body and an engagement part; a cavity of which the section is triangular is arranged inside the engagement part; a clamping groove matched with the engagement part is formed in the tail of the main body. The sheath for protecting the bridge stay rope is designed into the engagement structure, and therefore, the stability and the firmness of the structure are improved, and the protection strength of the stay rope against fire is also improved; besides, the temperature of the fire center part is reduced, the damage to the stay rope due to the fire is reduced, the repair cost is decreased, and the service life of the bridge is prolonged.
Description
Technical field [0001] The invention relates to a fire protection sheath for bridge cable protection. Background technique [0002] With the development of transportation and the advancement of technology, structural forms such as cable-stayed bridges and suspension bridges have become effective ways to cross rivers and valleys. However, fires caused by traffic accidents in recent years have posed a serious threat to the cables of the above-mentioned bridges. The fire on the bridge causes the strength loss and modulus of the stressed members such as the cables, which seriously affects the safety and durability of the bridge structure, not only increasing the maintenance cost of the bridge, but also shortening the service life of the bridge. [0003] In view of this, the main purpose of the present invention is to design a fire protection sheath for bridge cable protection, to protect the bridge cable from fire, and to reduce the damage caused by sudden fire to the bridge cable. S...
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IPC IPC(8): E01D19/16
CPCE01D19/16
Inventor 侯超群张长亮吴志刚谢舒雷王志辉
Owner HEFEI UNIV OF TECH