Anticorrosion structure for main cable of suspension bridge
A suspension bridge and main cable technology, which is applied in bridges, bridge parts, bridge construction, etc., can solve the problems of difficult main cable inspection, cracking of the outer coating, and high maintenance costs, so as to reduce inspection and maintenance costs, improve service life, and save The effect of construction time
Active Publication Date: 2014-02-26
JIANGSU FASTEN STEEL CABLE CO LTD +1
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Problems solved by technology
[0003] 1) There are cracks and aging phenomena in the outer coating, which requires regular coating and maintenance, and the maintenance cost is relatively high;
[0004] 2) The anti-corrosion system requires on-site winding and painting, which is difficult, time-consuming and expensive to construct;
[0005] 3) It is not easy to inspect the main cable in the future, and the coating and wire wrapping need to be removed. After the inspection, the wire winding and coating still need to be re-wound, and the cost is high
Method used
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Embodiment 1
[0023] see Figure 1~2 , figure 1 It is a structural schematic diagram of the main cable anti-corrosion structure of the suspension bridge of the present invention. figure 2 for figure 1 The A-A cutaway diagram. Depend on figure 1 and figure 2 It can be seen that the anti-corrosion structure of the main cable of the suspension bridge of the present invention is composed of the cable sleeve 3, the expansion joint 4 and the corresponding sealing structure covered on the surface of the main cable 1 between two adjacent cable clamps 2. Wherein cable sheath 3 is Hough type structure, see figure 2 , are connected or welded by bolts 8, or connected by bonding or welding, and the surface of the cable sleeve 3 is painted with an aging-resistant paint coating to enhance the aging resistance of the cable sleeve and meet the requirements of the bridge landscape. The expansion joint 4 is also Huff type, and is connected by bolting, bonding or welding. The cable clamp 2, the cable...
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The invention relates to an anticorrosion structure for a main cable of a suspension bridge, which is used for protecting the main cable of the suspension bridge and comprises a cable sheath (3) and an expansion joint (4), wherein the cable sheath (3) and the expansion joint (4) are coated on the surface of a main cable (1) and between two adjacent cable clamps (2). Both the cable sheath (3) and the expansion joint (4) are in half structures, a corrosion-resistant coating is coated on the surface of the cable sheath (3), a ventilation layer (9) is reserved in the cable sleeve (3), and the cable sleeve (3) is provided with an air inlet (5), an air outlet (6) and a connector for a humiture sensor (7). Main components of the anticorrosion structure are finished in factories and can be assembled on the site, so that field construction time is reduced, and cost is reduced. In addition, the anticorrosion structure is convenient in disassembly, and accordingly main cable wires can be inspected at any time, and inspection and maintenance cost is reduced for the main cable.
Description
technical field [0001] The invention relates to an anti-corrosion structure of a main cable of a suspension bridge. It is used for the protection of the main cable of the suspension bridge. It belongs to the technical field of bridge construction engineering. Background technique [0002] At present, the design and construction level of long-span bridges are constantly improving. How to improve the durability of bridge structures has become a major technical problem in bridge design and construction. The main cable is one of the most important stress-bearing components of a suspension bridge, known as the "lifeline". It has been exposed to the atmospheric environment for a long time and is subject to erosion by various adverse environmental factors. And the main cable is a non-replaceable component, so the life of the main cable directly affects the service life of the suspension bridge. The traditional anti-corrosion system scheme for the main cable of most suspension br...
Claims
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IPC IPC(8): E01D19/16
Inventor 赵军宁世伟薛花娟徐文雷
Owner JIANGSU FASTEN STEEL CABLE CO LTD