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Title: Are seismic fragility curves fragile?
A hypothetical seismic site is constructed for which the probability law of the seismic ground acceleration process 𝑋(𝑑) is specified. Since the seismic hazard is known, the performance of the incremental dynamic analysis- (IDA) and multiple stripe analysis- (MSA) based fragilities, which are used extensively in Earthquake Engineering, can be assessed without ambiguity. It is shown that the IDA- and MSA-based fragilities are unsatisfactory for moderate and large seismic events, are sensitive to the particular parameters used for their construction, and may or may not improve with the sample size. Also, the usefulness of the optimization algorithms for selecting ground motions records is questionable.  more » « less
Award ID(s):
1639669
PAR ID:
10205934
Author(s) / Creator(s):
Date Published:
Journal Name:
Probabilistic engineering mechanics
ISSN:
1878-4275
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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