Uncertainty evaluation of after-earthquake damage detection strategy

Davide Trapani, Andrea Maroni, Emiliano Debiasi, Daniele Zonta

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

3 Citations (Scopus)

Abstract

After-earthquake assessment of buildings in terms of safety and usability is nowadays performed by technicians who are called to give their judgement based on in-field surveys and visual inspections, often conducting the surveys in the absence of objective data. This implies additional inconvenience for residents and economic losses in the affected area. A near real-time assessment based on objective data related to the seismic response of the structures is possible through the use of monitoring systems that provide observations on the state of the monitored structure, obtaining information on its dynamic response. One of the most reliable parameters that can be correlated to the state of a structure after an earthquake is the ductility demand, expressed in terms of interstory drift. Using acceleration time-history records from the ITACA (Italian Accelerometric Archive) strong-motion database, we investigate the main sources of uncertainties in the estimation of displacement time-histories and interstory drift, using the method of double integration of the acceleration measurements alone. We have found that in general the instrumental uncertainties have less importance than the uncertainties of the model, in particular in the presence of residual displacements at the end of the seismic motion.

Original languageEnglish
Title of host publication2015 IEEE Workshop on Environmental, Energy, and Structural Monitoring Systems, EESMS 2015 - Proceedings
Pages125-130
Number of pages6
DOIs
Publication statusPublished - 3 Aug 2015
Event7th IEEE Workshop on Environmental, Energy, and Structural Monitoring Systems, EESMS 2015 - Trento, Italy
Duration: 9 Jul 201510 Jul 2015

Conference

Conference7th IEEE Workshop on Environmental, Energy, and Structural Monitoring Systems, EESMS 2015
CountryItaly
CityTrento
Period9/07/1510/07/15

Keywords

  • acceleration
  • accelerometers
  • computational modeling
  • cutoff frequency
  • monitoring
  • sensors
  • uncertainty

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  • Cite this

    Trapani, D., Maroni, A., Debiasi, E., & Zonta, D. (2015). Uncertainty evaluation of after-earthquake damage detection strategy. In 2015 IEEE Workshop on Environmental, Energy, and Structural Monitoring Systems, EESMS 2015 - Proceedings (pp. 125-130). [7175864] https://doi.org/10.1109/EESMS.2015.7175864