| 程江洲,谢卓然,李欣,张志强,邓海峰,郑皓文.海洋大气环境下输电塔线体系强风响应模拟分析[J].装备环境工程,2025,22(2):52-61. CHENG Jiangzhou,XIE Zhuoran,LI Xin,ZHANG Zhiqiang,DENG Haifeng,ZHENG Haowen.Simulation and Analysis of Strong Wind Response of Transmission Tower Line System under Marine Atmospheric Environment[J].Equipment Environmental Engineering,2025,22(2):52-61. |
| 海洋大气环境下输电塔线体系强风响应模拟分析 |
| Simulation and Analysis of Strong Wind Response of Transmission Tower Line System under Marine Atmospheric Environment |
| 投稿时间：2024-12-13 修订日期：2025-01-06 |
| DOI：10.7643/issn.1672-9242.2025.02.007 |
| 中文关键词: 输电塔线体系 莫兰蒂台风 Cl‒腐蚀 海洋大气 有限元分析 风致倒塌中图分类号:TM754 文献标志码:A 文章编号:1672-9242(2025)02-0052-10 |
| 英文关键词:transmission tower line system typhoon Meranti Cl‒ corrosion marine atmosphere finite element analysis wind-induced collapse |
| 基金项目:国家自然科学基金(52107107) |
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| Author | Institution |
| CHENG Jiangzhou | College of Electrical Engineering & New Energy, China Three Gorges University, Hubei Yichang 443002, China;Hubei Transmission Line Engineering Technology Research Center, Hubei Yichang 443002, China |
| XIE Zhuoran | College of Electrical Engineering & New Energy, China Three Gorges University, Hubei Yichang 443002, China |
| LI Xin | College of Electrical Engineering & New Energy, China Three Gorges University, Hubei Yichang 443002, China;Hubei Transmission Line Engineering Technology Research Center, Hubei Yichang 443002, China |
| ZHANG Zhiqiang | College of Electrical Engineering & New Energy, China Three Gorges University, Hubei Yichang 443002, China |
| DENG Haifeng | State Grid Hubei Electric Power Company Yichang Power Supply Company Operation and Maintenance Department, Hubei Yichang 443002, China |
| ZHENG Haowen | College of Electrical Engineering & New Energy, China Three Gorges University, Hubei Yichang 443002, China |
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| 中文摘要: |
| 目的 以实际现场数据为基础，研究沿海地区输电塔线体系风灾薄弱点。方法 结合实际受灾情况，研究易受台风侵袭的输电线路所处地理气候特性，研究海洋大气腐蚀环境下输电塔钢构件腐蚀机理，并建立腐蚀深度以及力学性能退化时变模型。通过建立塔线体系有限元模型，对其施加风荷载，重现其风致响应过程，并对风致倒塌结果进行分析。结果 塔脚与地基交接处的角钢全部压弯，塔身主材应力比超载6%~23%，造成整体失稳。塔头受扭严重，塔头曲臂实际承受荷载超过设计所能承受荷载20%~38%。结论 所提钢结构腐蚀时变模型能更好地拟合实际塔线体系抗风能力，且在台风背景下，塔体下部以及塔腿下部杆件的抗风能力对输电塔倒塌具有决定性作用，研究结果可为沿海输电线路设计提供参考。 |
| 英文摘要: |
| The work aims to study the vulnerability of the transmission tower line system in the coastal area based on the actual field data.First of all, combined with the actual disaster situation, the geographical and climatic characteristics of the transmission lines that were vulnerable to typhoons were studied, and the corrosion mechanism of steel members of the transmission tower under the marine and atmospheric corrosion environment was studied, and a time-varying model of corrosion depth and mechanical properties degradation was established. Then, a finite element model of the tower line system was established, the wind load was applied to it to reproduce the wind-induced response process and analyze the wind-induced collapse results. The result showed that the angle steel at the junction of the tower foot and the foundation was all bent, and the stress ratio of the main material of the tower body was overloaded by 6%-23%, resulting in overall instability. The tower head was twisted seriously, and the actual load borne by the tower head bend arm exceeded the designed load by 20%-38%. In conclusion, the proposed time-varying steel structure corrosion model can better fit the wind resistance of the actual tower line system, and the wind resistance of the lower part of the tower body and the lower member of the tower leg in the background of the typhoon plays a decisive role in the collapse of the tower, and the results of the study can provide a reference for the design of coastal transmission lines |
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