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New regulations on railroad bridge safety: opportunities and challenges for railroad bridge monitoring

机译：铁路桥梁安全新法规：铁路桥梁监控的机遇与挑战

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New federal regulations now mandate North American railroad bridge owners to closely assess the structural capacity oftheir bridges. Consequently, railroad companies are currently looking into developing and exploring monitoring systemsfor specific bridges, to help them improve and develop bridge safety in order to help comply with this new rule. The firstpart of this paper explains the significance of the new federal law. The new rule comes from the Federal RailroadAdministration (FRA), Department of Transportation (DOT), and it falls under the 49 Code of Federal Regulations(CFR), Parts 213 and 2371. It requires railroad track owners to know the safe capacity of their bridges and to additionallyconduct special inspections if either weather or other exceptional conditions make them necessary to ensure safe railroadbridge operations. The second part of this paper will cover past and current studies about the viability of bridge healthmonitoring, and actual structural monitoring experiences for railroad bridges. Finally, lessons learned from thesemonitoring examples, as well as recommendations for future applications, are suggested, including wireless monitoringstrategies for railroad bridges such as: campaign sensing inspections (periodic monitoring); bridge replacementobservations (short term monitoring); and permanent bridge instrumentation (long term monitoring).© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译：现在，新的联邦法规要求北美铁路桥梁所有者密切评估其桥梁的结构能力。因此，铁路公司目前正在研究开发和探索特定桥梁的监视系统，以帮助他们改善和发展桥梁安全性，以帮助遵守这一新规则。本文的第一部分解释了新联邦法律的重要性。新规则来自运输部（FOT）的联邦铁路管理局（FRA），它属于49联邦法规（CFR）第213和2371部分的规定。它要求铁轨所有者知道其安全容量。桥梁，并在天气或其他特殊情况下进行特殊检查，以确保铁路桥的安全运行。本文的第二部分将涵盖有关桥梁健康监测的可行性以及铁路桥梁实际结构监测经验的过去和当前的研究。最后，建议从这些监视示例中汲取的经验教训以及对未来应用的建议，包括铁路桥梁的无线监视策略，例如：战役感知检查（定期监视）;桥梁更换观测（短期监测）;以及永久性桥梁仪器（长期监控）。©（2012）COPYRIGHT光电仪器工程师协会（SPIE）。摘要的下载仅允许个人使用。

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