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Structural Monitoring and Maintenance
  Volume 5, Number 1, March 2018 , pages 79-92

RAMS evaluation for a steel-truss arch high-speed railway bridge based on SHM system
Han-Wei Zhao, You-Liang Ding, Fang-Fang Geng and Ai-Qun Li

    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.
Key Words
    high-speed railway; steel-truss arch bridge; SHM; RAMS; state evaluation
Han-Wei Zhao and You-Liang Ding: Key Laboratory of C&PC Structures of the Ministry of Education, School of Civil Engineering, Southeast University, Nanjing 210096, China
Fang-Fang Geng: School of Architecture Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Ai-Qun Li: Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China

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