Efficient Analytical Fragility Function Fitting Using Dynamic Structural Analysis
Top Cited Papers
- 1 February 2015
- journal article
- Published by SAGE Publications in Earthquake Spectra
- Vol. 31 (1), 579-599
- https://doi.org/10.1193/021113eqs025m
Abstract
Estimation of fragility functions using dynamic structural analysis is an important step in a number of seismic assessment procedures. This paper discusses the applicability of statistical inference concepts for fragility function estimation, describes appropriate fitting approaches for use with various structural analysis strategies, and studies how to fit fragility functions while minimizing the required number of structural analyses. Illustrative results show that multiple stripe analysis produces more efficient fragility estimates than incremental dynamic analysis for a given number of structural analyses, provided that some knowledge of the building's capacity is available prior to analysis so that relevant portions of the fragility curve can be approximately identified. This finding has other benefits, given that the multiple stripe analysis approach allows for different ground motions to be used for analyses at varying intensity levels, to represent the differing characteristics of low-intensity and high-intensity shaking. The proposed assessment approach also provides a framework for evaluating alternate analysis procedures that may arise in the future.Keywords
This publication has 19 references indexed in Scilit:
- Influence of the Number of Dynamic Analyses on the Accuracy of Structural Response EstimatesEarthquake Spectra, 2015
- Conditional spectrum‐based ground motion selection. Part I: Hazard consistency for risk‐based assessmentsEarthquake Engineering & Structural Dynamics, 2013
- An efficient method for estimating the collapse risk of structures in seismic regionsEarthquake Engineering & Structural Dynamics, 2012
- Conditional Hazard Maps for Secondary Intensity MeasuresBulletin of the Seismological Society of America, 2010
- Strong ground motion record selection for the reliable prediction of the mean seismic collapse capacity of a structure groupEarthquake Engineering & Structural Dynamics, 2010
- Error estimation of closed‐form solution for annual rate of structural collapseEarthquake Engineering & Structural Dynamics, 2008
- FRAGILITY ASSESSMENT OF SLAB-COLUMN CONNECTIONS IN EXISTING NON-DUCTILE REINFORCED CONCRETE BUILDINGSJournal of Earthquake Engineering, 2005
- A vector-valued ground motion intensity measure consisting of spectral acceleration and epsilonEarthquake Engineering & Structural Dynamics, 2005
- Development of fragility curves of bridges retrofitted by column jacketingProbabilistic Engineering Mechanics, 2004
- Seismic fragilities for nuclear power plant risk studiesNuclear Engineering and Design, 1984