Hazard Disaggregation and Record Selection for Fragility Analysis and Earthquake Loss Estimation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017-05

Autores

Luis Sousa (Autor) Outra; Mário Marques (Autor) FEUP; Vitor Silva (Autor) Outra; Humberto Varum (Autor) FEUP

Revista

Título: Earthquake Spectra

Vol. 33 Nº 2

Páginas: 529-549

ISSN: 8755-2930

Editora: Earthquake Engineering Research Institute

Indexação

ISI Web of Knowledge - 7 Citações

Scopus - 8 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil

FOS: Ciências da engenharia e tecnologias > Engenharia civil

Outras Informações

ID Authenticus: P-00R-AZ1

DOI: 10.1193/062016eqs101m

Abstract (EN): Economic losses and collapse probability are critical measures for evaluating the earthquake risk of existing buildings. In this context, this study sheds light on several problems and limitations in current practice of hazard-consistent ground motion selection and fragility analysis, focusing on the impact that (commonly assumed) approximations in disaggregation outputs have on the aforementioned risk metrics, as opposed to an exact solution. These issues are investigated for several building classes, seismicity models and ground motion prediction equations (GMPE), for a site in the city of Lisbon (Portugal). It is observed that only an exact (i.e., rupture-by-rupture) disaggregation can lead to satisfactory results in terms of accuracy, when limit state criteria are not structure-specific. On the other hand, an approximate method is proposed, which still leads to statistically valid results regardless of the chosen structural class, seismicity model or GMPE.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 21