RESEARCH ARTICLE


Probabilistic Seismic Damage Assessment of RC Buildings Based on Nonlinear Dynamic Analysis



Yeudy F. Vargas*, 1, Lluis G. Pujades1, Alex H. Barbat1, Jorge E. Hurtado2
1 Universidad Politécnica de Cataluña Department of Geotechnical Engineering and Geosciences, Jordi Girona 1-3, Building D2, Campus Norte UPC, 08034 Barcelona, Spain
2 Universidad Nacional de Colombia Universidad Nacional de Colombia, Apartado 127, Manizales, Colombia


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Creative Commons License
© 2015 Vargas et al ;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Universidad Politécnica de Cataluña, Department of Geotechnical Engineering and Geosciences, Jordi Girona 1-3, Building D2, Campus Norte UPC, 08034 Barcelona, Spain; Tel: +34934016496; E-mail: yeudy.felipe.vargas@upc.edu


Abstract

The incremental dynamic analysis is a powerful tool for evaluating the seismic vulnerability and risk of buildings. It allows calculating the global damage of structures for different PGAs and representing this result by means of damage curves. Such curves are used by many methods to obtain seismic risk scenarios at urban level. Even if the use of this method in a probabilistic environment requires a relevant computational effort, it should be the reference method for seismic risk evaluation. In this article we propose to assess the seismic expected damage by using nonlinear dynamic analysis. We will obtain damage curves by means of the incremental dynamic analysis combined with the damage index of Park * Ang. The uncertainties related to the mechanical properties of the materials and the seismic action will be considered. The probabilistic damage curves obtained can be used to calculate not only seismic risk scenarios at urban level, but also to estimate economic losses.

Keywords: Damage curves , incremental dynamic analysis, uncertainties.