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Creating Fragility Functions for Performance-Based Earthquake Engineering

Porter, Keith and Kennedy, Robert and Bachman, Robert (2007) Creating Fragility Functions for Performance-Based Earthquake Engineering. Earthquake Spectra, 23 (2). pp. 471-489. ISSN 8755-2930. doi:10.1193/1.2720892.

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The Applied Technology Council is adapting PEER's performance-based earthquake engineering methodology to professional practice. The methodology's damage-analysis stage uses fragility functions to calculate the probability of damage to facility components given the force, deformation, or other engineering demand parameter (EDP) to which each is subjected. This paper introduces a set of procedures for creating fragility functions from various kinds of data: (A) actual EDP at which each specimen failed; (B) bounding EDP, in which some specimens failed and one knows the EDP to which each specimen was subjected; (C) capable EDP, where specimen EDPs are known but no specimens failed; (D) derived, where fragility functions are produced analytically; (E) expert opinion; and (U) updating, in which one improves an existing fragility function using new observations. Methods C, E, and U are all introduced here for the first time. A companion document offers additional procedures and more examples.

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Additional Information:©2007 Earthquake Engineering Research Institute (Received 2 May 2006; accepted 29 September 2006) The Applied Technology Council funded this work under a grant from the Department of Homeland Security to support ATC-58, Guidelines for Seismic Performance Assessment of Buildings. We thank ATC-58 colleagues Allin Cornell, Andre Filiatrault, Ron Hamburger, Robert Hansen, Michael Mahoney, Eduardo Miranda, Christopher Rojahn, and Andrew Whittaker for their support.
Subject Keywords:earthquake engineering; bridges (structures); building; deformation; force
Issue or Number:2
Record Number:CaltechAUTHORS:PORes07a
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8507
Deposited By: Archive Administrator
Deposited On:16 Aug 2007
Last Modified:08 Nov 2021 20:50

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