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高铁站台钢结构雨棚具有跨度大、强度高、重量轻等特点，在服役过程中由于受到自然因素和人为因素的影响，尤其是在寒冷地区异常恶劣的气候条件下容易产生严重的安全问题。通过对寒区某站台钢结构雨棚建立三维模型，利用有限元仿真对钢结构雨棚在符合实际工况的组合荷载条件下的雨棚结构稳定性变化规律进行了分析。由此设计了在寒区高铁站台实际工作条件下的健康监测方案，并通过现场监测数据验证了健康监测系统的可靠性。结果表明：雨棚结构较大应力主要集中在系杆之中，雨棚两端立柱向中间倾斜，棚顶则产生了较大位移；由此钢结构雨棚健康监测可分为3个单元，应力应变单元监测系杆结构的内力变化，立柱倾斜单元监测雨棚端部立柱的倾斜状况，位移沉降单元则监测雨棚梁结构整体位移变化及雨棚沉降情况；通过健康监测系统获得的数据证明了系统运行的稳定性和数据的可信性。实现了对钢结构雨棚健康状态的实时监测，为寒区环境下高铁站雨棚的安全运维提供了设计理论和应用经验。
Abstract：The steel structure canopy of high-speed railway platform has the characteristics of large span, high strength and light weight. Due to the influence of natural and human factors in the service process, it is easy to cause serious safety problems, especially in the unusually harsh climate conditions in cold areas. By establishing a three-dimensional model of a steel-structure platform canopy in a cold region, finite element simulation was used to analyze the variation patterns of the canopy′s structural stability under combined load conditions consistent with actual working conditions.Therefore, the health monitoring scheme under the actual working conditions of the high-speed railway platform in the cold region is further studied, and the reliability of the health monitoring system is verified by the on-site monitoring data. The results show that the larger stresses in the canopy structure are mainly concentrated in the rods, the columns at the two ends of the canopy are tilted to the center, and the roof has a large displacement; thus the health monitoring of the steel canopy can be divided into three units, the stress-strain unit monitors the changes in the internal forces in the rod structure, the column tilt unit monitors the tilting condition of the columns at the end of the canopy, and the displacement and settlement unit monitors the changes in the overall displacement of the canopy beam structure and the settlement of the canopy. The data obtained from the health monitoring system proved the stability of the system operation and the credibility of the data. The real-time monitoring of the health status of steel structure canopies is realized, which provides design theory and application experience for the safe operation and maintenance of canopies in high-speed railway stations under the environment of cold regions.
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基本信息:
DOI：10.13291/j.cnki.djdxac.2026.03.010
中图分类号:TU317;TU391;U291.65
引用信息:
[1]王紫光,孙宜鹏,赵士勇,等.寒区高铁站台钢结构雨棚健康监测仿真与应用[J].大连交通大学学报,2026,47(03):84-91.DOI:10.13291/j.cnki.djdxac.2026.03.010.
基金信息:
中国铁路总公司科技研究开发计划课题(齐房20210260)
2024-08-11
2024
2024-09-18
2024-09-24
2024
1
2026-06-09
2026-06-09
2026-06-09