Abstract
A new Metro line was opened in 2012 in Mexico City. The elevated portion of this line is located in an area of high seismic risk with compressible soft soil. The monitoring and analysis of the structural response has been done for both transitory events and long-term conditions using two interdependent systems and two sets of sensors. Structural health is estimated using a set of key parameters calculated from sensors installed on a curved portion of the elevated railway.
The structural health has been assessed by defining four damage levels that are delimited by two load states: service and design. Since the installation of the monitoring system, 14 seismic events, more than 50,000 train passes and four years of long-term effects have been recorded.
This paper presents the damage level observed and criteria used for its assessment. Also, the main observations derived from the analysis of data recorded by the monitoring systems over a four-year period are described. Structural properties and their change in time have been analyzed through a set of health indicators defined from the available sensors. Changes to these structural performance indicators have been also correlated to ambient temperature. Finally, the overall condition of the structure is assessed in light of the data recorded by the structural health monitoring systems.
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References
Murià-Vila, D., Sánchez-Ramírez, A.R., Huerta-Carpizo, C.H., Aguilar, G., Camargo, J., López, Y.: Field tests of a curve in an elevated urban railroad. In: Proceedings of the 9th International Conference on Structural Dynamics, EURODYN 2014, Porto, Portugal (2014)
NTCDF: Normas Técnicas Complementarias para Diseño por Sismo. of the Reglamento de Construcciones para el Distrito Federal, Gaceta Oficial del Gobierno del Distrito Federal, 103-BIS, October 6 (2004)
Murià-Vila, D., Huerta-Carpizo, C., Sánchez-Ramírez, A., Pérez, J., Cruz, C.: Seismic monitoring on the curved portion of an elevated railway. In: Proceedings of the 10th NCEE, Anchorage, Alaska (2014)
Aktan, E., Chase, D., Inman, D., Pines, D.: Monitoring and managing the health of infrastructure systems. In: Proceedings of the 2001 SPIE CHMHTI-2001 (2001)
Bradford, S., Heaton, T., Beck, J.: Structural monitoring and evaluation tools at caltech: instrumentation and real-time data analysis. In: Proceedings of the 2004 ANCER AMNYEERP-2004, Honolulu, Hawaii (2004)
Xiang, Y.Q., Weng, S.L.: Health monitoring and assessment management system of Wenhui Bridge. In: Proceedings of the 1st ICSHMII, Tokio, Japan, pp. 913–920 (2003)
Arias, A.: A measure of earthquake intensity. In: Hansen, R.J. (ed.) Seismic Design for Nuclear Power Plants. MIT Press, Cambridge (1970)
Clinton, J., Bradford, S., Heaton, T., Favel, J.: The observed wander of the natural frequencies in a structure. Bull. Seismol. Soc. Am. 96(1), 237–257 (2006)
Boroschek, R., Tamayo, F., Aguilar, R.: Evaluación de los efectos ambientales en un edificio de media altura. Memorias del Congreso Chileno de Sismología e ingeniería Sísmica Achisina 2015, Santiago, Chile, Paper 63 (2015)
Peters, B., De Roeck, G.: One-year monitoring of the Z24-Bridge: environmental effects versus damage events. Earthquake Eng. Struct. Dynam. 30(2), 149–171 (2001)
Vázquez, A.: Representación de la respuesta de una vía elevada en la ciudad de México. Masters Dissertation, Posgrado de Ingeniería, UNAM, México (2013)
Murià-Vila, D., Sánchez-Ramírez, A., Huerta-Carpizo, C., Aguilar, G., Pérez, J., Carrillo, R.: Field tests of elevated viaducts in Mexico city. J. Struct. Eng. 141 (2015). SPECIAL ISSUE: Field Testing of Bridges and Buildings
Acknowledgments
The support of Mexico City’s government and the active involvement of the Institute of Engineering of the National Autonomous University of Mexico (IIUNAM) to design, deploy and maintain the monitoring system of the railway for more than four years is recognized. The collaboration of José M. Riobóo, Juan C. Arce, Luis Cabrera and Arturo Padilla in providing information on the design of the project and for their valuable comments is appreciated. The participation of the following IIUNAM researchers, technicians and students is gratefully appreciated: Alberto Vásquez, José Camargo, Luis A. Aguilar, Daniel Aldama, Miguel A. Mendoza, Yoatzin López, Mauricio Ayala, Alejandro Mora, and José M. Velasco.
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Huerta-Carpizo, C.H., Murià-Vila, D., Aguilar, G., Sánchez, A.R. (2018). Structural Health Monitoring of a Curved Segment of an Elevated Railroad. In: Conte, J., Astroza, R., Benzoni, G., Feltrin, G., Loh, K., Moaveni, B. (eds) Experimental Vibration Analysis for Civil Structures. EVACES 2017. Lecture Notes in Civil Engineering , vol 5. Springer, Cham. https://doi.org/10.1007/978-3-319-67443-8_15
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DOI: https://doi.org/10.1007/978-3-319-67443-8_15
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