Earthquakes and Structures

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Modifier parameters and quantifications for seismic vulnerability assessment of reinforced concrete buildings

  • Oumedour, Amira (Laboratory of Solid Mechanics and Systems, University of M'Hamed Bougara) ;
  • Lazzali, Farah (Department of Civil Engineering, M'Hamed Bougara University of Boumerdes)
  • Received : 2021.06.30
  • Accepted : 2021.10.14
  • Published : 2022.01.25
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Abstract

In recent years, some studies have identified and quantified factors that can increase or decrease the seismic vulnerability of buildings. These modifier factors, related to the building characteristics and condition, are taken into account in the vulnerability assessment, by means of a numerical estimation resulting from the quantification of these modifiers through vulnerability indexes. However, views have differed on the definition and the quantification of modifiers. In this study, modifier parameters and scores of the Risk-UE Level 1 method are adjusted based on the Algerian seismic code recommendations and the reviews proposed in the literature. The adjusted modifiers and scores are applied to reinforced concrete (RC) buildings in Boumerdes city, in order to assess probable seismic damage. Comparison between estimated damage and observed damage caused by the 2003 Boumerdes earthquake is done, with the objective to (i) validate the model involving influence of the modifier parameters on the seismic vulnerability, and (ii) to define the relationship between modifiers and damage. This research may help planners in improving seismic regulations and reducing vulnerability of existing buildings.

Keywords

Acknowledgement

The authors would like to acknowledge the Construction Technology Control agency (CTC) and the Department of Housing (DLEP) of Boumerdes city, for consulting the post-earthquake database.

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