Seismic Vulnerability Assessment of the Old City Centre of Horta, Portugal: Calibration and Application of a Scoring Method

Abstract eng:
Due to the scale and number of buildings involved, the methodologies currently available to assess the seismic vulnerability of urban areas usually require the treatment of a massive volume of data associated with the inspection and survey work, and for this reason the use of more simplified approaches is becoming more popular in the detriment of the later, particularly in this regard. Bearing in mind the high seismic vulnerability usually associated to the built environment within historical centres, this paper is focused on the calibration of a seismic vulnerability assessment method for old masonry buildings by treating a set of post-earthquake damage data collected just after the earthquake that struck the Azorean island of Faial on the 9th of July 1998. Based on this data, the weights associated to each of the parameters that compose the original formulation of the method were calibrated and the subsequent results discussed. Finally, the calibrated version of the seismic vulnerability assessment method was applied to the historical centre of Horta, and damage and loss scenarios were derived using a Geographical Information System (GIS) tool.

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