Impact of spatial correlation of ground motions on seismic damage for residential buildings in Bucharest, Romania

Florin Pavel (), Radu Vacareanu, Ileana Calotescu, Ana-Maria Sandulescu, Cristian Arion and Cristian Neagu
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Florin Pavel: Technical University of Civil Engineering Bucharest
Radu Vacareanu: Technical University of Civil Engineering Bucharest
Ileana Calotescu: Technical University of Civil Engineering Bucharest
Ana-Maria Sandulescu: Technical University of Civil Engineering Bucharest
Cristian Arion: Technical University of Civil Engineering Bucharest
Cristian Neagu: Technical University of Civil Engineering Bucharest

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2017, vol. 87, issue 2, No 30, 1167-1187

Abstract: Abstract This paper focuses on the investigation of seismic risk for residential buildings situated in Bucharest, the capital city of Romania. With a population of nearly 2 million inhabitants and a residential building stock of more than 130,000 units, Bucharest represents a city with one of the highest seismic risks in Europe. The seismic risk is evaluated taking into consideration only the Vrancea intermediate-depth seismic source which exhibits a dominant influence on the seismic hazard in southern and eastern Romania (including Bucharest, as well). The analyses are conducted based on a Monte Carlo earthquake catalogue which covers a time span of 50,000 years and includes more than 13,000 seismic events with magnitudes M W ≥ 6.0. In addition, in order to account for the ground-motion variability throughout Bucharest, a recently developed spatial correlation model is applied. Thus, the influence of the ground-motion correlation on the damage estimates for Bucharest is evaluated, as well. The seismic risk estimates obtained for various earthquake scenarios show a significant variability of the results obtained and offer valuable information for the decision-makers from public institutions dealing with the risk management.

Keywords: Fragility functions; Capacity curves; Damage; Vulnerability; Seismic hazard; Earthquake catalogue (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1007/s11069-017-2814-6

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