Seismic vulnerability and risk assessment: case study of the historic city centre of Coimbra, Portugal |
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Authors: | Romeu Vicente Sonia Parodi Sergio Lagomarsino Humberto Varum and J A R Mendes Silva |
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Institution: | (1) Department of Geotechnical Engineering and Geosciences, Technical University of Catalonia, Jordi Girona 1–3, Building D2, Campus Norte UPC, 08034 Barcelona, Spain;(2) Department of Structural Mechanics, Technical University of Catalonia, Jordi Girona 1–3, Building C1, Campus Norte UPC, 08034 Barcelona, Spain |
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Abstract: | Seismic risk evaluation of built-up areas involves analysis of the level of earthquake hazard of the region, building vulnerability
and exposure. Within this approach that defines seismic risk, building vulnerability assessment assumes great importance,
not only because of the obvious physical consequences in the eventual occurrence of a seismic event, but also because it is
the one of the few potential aspects in which engineering research can intervene. In fact, rigorous vulnerability assessment
of existing buildings and the implementation of appropriate retrofitting solutions can help to reduce the levels of physical
damage, loss of life and the economic impact of future seismic events. Vulnerability studies of urban centres should be developed
with the aim of identifying building fragilities and reducing seismic risk. As part of the rehabilitation of the historic
city centre of Coimbra, a complete identification and inspection survey of old masonry buildings has been carried out. The
main purpose of this research is to discuss vulnerability assessment methodologies, particularly those of the first level,
through the proposal and development of a method previously used to determine the level of vulnerability, in the assessment
of physical damage and its relationship with seismic intensity. Also presented and discussed are the strategy and proposed
methodology adopted for the vulnerability assessment, damage and loss scenarios for the city centre of Coimbra, Portugal,
using a GIS mapping application. |
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