Economical assessment of the SHM system of the Rio Papaloapan bridge
Abstract »The Rio Papaloapan Bridge is the first fully instrumented and continuously monitored bridge by the Transport Secretary of Mexico. The SHM system is based on fiber Bragg grating (FBG) sensors and started operations in 2013 to monitor structural behavior and guarantee bridge integrity and safety. Since then, the monitoring data has been used to set alarm levels for normal and abnormal operational conditions, operational and condition limits for structural elements, improvement of mathematical models for a more precise simulation of extreme conditions, failures or extraordinary events, and to evaluate the impact of past and future maintenance activities. From this two year experience and to stablish a good practice for instrumentation and monitoring of the most important bridges in Mexico, considering the cost effectiveness of the SHM investment, an initial evaluation of the costs and benefits has been done to evaluate, on one hand, the value of the real time information for decision making and to assure the bridge safety and integrity, versus the initial cost investment for the SHM system and the costs for its maintenance, or the limitations of the SHM system to predict all possible damage conditions. As an initial conclusion, SHM are cost effective when structures are under many external or structural uncertainties affecting structural reliability.
Biography: Juan Quintana has a Degree in Mechanical Engineering from the Technological Institute of Celaya Mexico, a Master of Science in Engineering from Purdue University and a Ph.D. in Mechanical Engineering from National Polytechnic Institute Mexico. Mexican Researcher in the ministry of transportation in the structural integrity area. Juan Quintana has worked on Structural evaluation systems through real-time remote monitoring, evaluation of damage in structures using wave propagation methods, prognosis of structures and structural components using Monte-Carlo simulation techniques.