Research and Application of Automatic Dehumidification Device in Anchorage Zone of Cable-stayed Bridge

DOI

10.2991/978-94-6239-758-3_11How to use a DOI?

Keywords

Stay-cable anchorage zone; Automatic drainage dehumidification; Compact dehumidifier

Abstract

To address the issue of high humidity environments caused by seal failure in the anchorage zone beneath suspension cables, traditional dehumidification techniques rely on adding ventilation ducts within the cable body or modifying anchorage designs—approaches that cannot be directly applied to bridge suspension cables. This paper proposes and implements a compact, removable automatic dehumidification device based on semiconductor condensation principles, enabling rapid installation and removal compatible with protective covers. The device integrates a thermoelectric cooling module, wind-driven mechanism, water pump, and multiple sensors for temperature, humidity, and liquid level. It employs a coordinated drainage-dehumidification control strategy: entering standby low-power mode when humidity falls below threshold with no water accumulation; prioritizing drainage upon detecting water accumulation; and activating condensation dehumidification when humidity exceeds threshold. Vertical model gradient humidity dehumidification experiments demonstrate that under simulated water accumulation conditions, relative humidity can be reduced below 60% within 74 hours. High humidity levels of 93% can be lowered below 60% within 10 hours, maintaining stable operation over extended periods. Field bridge validation confirms humidity reduction below 60%. This device enables drainage and dehumidification of cable anchorage zones across diverse bridge types and service conditions, significantly extending cable lifespan with broad engineering application prospects.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Xinhan Yu
AU  - Yiqing Zou
AU  - Lijun Jiang
AU  - Junlin Chen
AU  - Wei Shi
AU  - Xinge Li
PY  - 2026
DA  - 2026/09/08
TI  - Research and Application of Automatic Dehumidification Device in Anchorage Zone of Cable-stayed Bridge
BT  - Proceedings of the 2026 7th International Conference on Management Science and Engineering Management (ICMSEM 2026)
PB  - Atlantis Press
SP  - 102
EP  - 111
SN  - 2352-5428
UR  - https://doi.org/10.2991/978-94-6239-758-3_11
DO  - 10.2991/978-94-6239-758-3_11
ID  - Yu2026
ER  -