Structural Monitoring and Maintenance

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RAMS evaluation for a steel-truss arch high-speed railway bridge based on SHM system

  • Zhao, Han-Wei (Key Laboratory of C&PC Structures of the Ministry of Education, School of Civil Engineering, Southeast University) ;
  • Ding, You-Liang (Key Laboratory of C&PC Structures of the Ministry of Education, School of Civil Engineering, Southeast University) ;
  • Geng, Fang-Fang (School of Architecture Engineering, Nanjing Institute of Technology) ;
  • Li, Ai-Qun (Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture)
  • Received : 2017.11.05
  • Accepted : 2018.02.19
  • Published : 2018.03.25
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Abstract

The evaluation theory of reliability, availability, maintainability and safety (RAMS) as a mature theory of state evaluation in the railway engineering, can be well used to the evaluation, management, and maintenance of complicated structure like the long-span bridge structures on the high-speed railway. Taking a typical steel-truss arch bridge on the Beijing-Shanghai high-speed railway, the Nanjing Dashengguan Yangtze River Bridge, this paper developed a new method of state evaluation for the existing steel-truss arch high-speed railway bridge. The evaluation framework of serving state for the bridge structure is presented based on the RAMS theory. According to the failure-risk, safety/availability, maintenance of bridge members, the state evaluation method of each monitoring item is presented. The weights of the performance items and the monitoring items in all evaluation levels are obtained using the analytic hierarchy process. Finally, the comprehensive serving state of bridge structure is hierarchical evaluated.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, Scientific Research Foundation of Graduate School of Southeast University, Central Universities

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