Design and Dehumidification Effect of Dry Air Dehumidification System Inside the Main Cable
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Bibliographic Details
| Author(s): |
Chen Wei
(Southwest Jiaotong University, Chengdu, China)
Shen Ruili (Southwest Jiaotong University, Chengdu, China) Cheng Xiang (Southwest Jiaotong University, Chengdu, China) Wan Tianbao (China Railway Major Bridge Reconnaissance & Design Institute Co., Ltd., Wuhan, China) Zhao Jun (Jiangsu Fasten Steel Cable Co., Ltd., Jiangyin, China) Zhou Zhubing (Jiangsu Fasten Steel Cable Co., Ltd., Jiangyin, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 1677-1684 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/nanjing.2022.1677 | ||||
| Abstract: |
To improve the durability of the main cable of the suspension bridge, a new dehumidification system for delivering dry air from the interior of the main cable is proposed. The dehumidification system delivers dry air through the dry air supply conduct embedded inside the main cable, which can improve the dry air delivery efficiency. Based on the 1560m long-span suspension bridge of Longtan Yangtze River Bridge, the overall design of the new dehumidification system of the main cable is carried out. The components of the new dehumidification system are designed, the key technologies for the design of the new dehumidification system are clarified, and the corresponding solutions are proposed. To verify the dehumidification effect of the new dehumidification system, the main cable dehumidification test was carried out to test the relative humidity change pattern inside the main cable during the dry air delivering process. The test results show that the new dehumidification system has a good dehumidification effect and can be used to protect the main cable of the long-span suspension bridge against corrosion. |
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| Keywords: |
main cable of suspension bridge high-strength steel wire corrosion dehumidification system design dehumidification effect
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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