This paper presents the results of long-term monitoring of the track–bridge interaction on a 100-m-long net-arch bridge with the MW steering bar system. Monitoring track–bridge interaction phenomena is a specific type of structural health monitoring (SHM). The paper begins with a thorough description of the configuration of the track and the bridge, and of the monitoring methods that were used. The real behaviour of the track and the bridge during the daily temperature cycles and during train crossings was investigated and the results are presented, together with an evaluation of the plastic shear resistance of the track. In addition, a summary of the measured extreme values and other interesting findings from an evaluation of the long-term monitoring campaign are presented. Recommendations are given on sensor application and on data evaluation. The results are discussed with reference to the requirements of transport management for safe track behaviour, to prevent buckling or cracking of the rail.

中文翻译：

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长期监测极偏斜钢拱桥上的轨桥相互作用

本文介绍了使用MW转向杆系统对100米长的网拱桥上的轨桥相互作用进行长期监测的结果。监视轨道桥梁相互作用现象是结构健康监视（SHM）的一种特殊类型。本文从对轨道和桥梁的配置以及所使用的监视方法的全面描述开始。研究了轨道和桥梁在日常温度周期和火车穿越期间的真实行为，并给出了结果以及对轨道塑性抗剪强度的评估。此外，还提供了对测得的极值的总结以及对长期监测活动进行评估得出的其他有趣发现。给出了有关传感器应用和数据评估的建议。