Second European Conference on Earthquake Engineering and Sesimology
Abstract
Fragility curves represent a major component of seismic risk and vulnerability assessment of buildings
and infrastructure facilities. A recently conducted extensive literature review under the framework of
developing the “GEM Guide for Selecting of Existing Analytical Fragility Curves and Compilation of
the Database”, shows that there is a wealth of existing analytically derived fragility curves that can be
used for future applications. However, the main challenge in using these curves is how to identify and,
if necessary, combine suitable fragility curves from a pool of curves with different characteristics and,
often unknown, reliability. The present article introduces a rating system that has been developed
following detail review and critique of the various methodologies on the derivation of analytical
fragility curves that have been generated in the past two decades. The main scope is to provide
guidance, either in choosing suitable and robust existing fragility curves or in generating new fragility
curves. The quality rating system rates the quality of a curve according to the effect that various
parameters, simulation procedures and assumptions on the reliability of fragility curve. It also assists
and steers potential analysts towards a better identification and quantification of expected uncertainties
throughout the process
