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Nonlinear Static Procedure for Seismic Vulnerability Assessment of Bridges
Author(s) -
Banerjee S.,
Shinozuka M.
Publication year - 2007
Publication title -
computer‐aided civil and infrastructure engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.773
H-Index - 82
eISSN - 1467-8667
pISSN - 1093-9687
DOI - 10.1111/j.1467-8667.2007.00486.x
Subject(s) - fragility , nonlinear system , structural engineering , context (archaeology) , bridge (graph theory) , incremental dynamic analysis , vulnerability assessment , vulnerability (computing) , reliability (semiconductor) , displacement (psychology) , engineering , computer science , seismic analysis , geology , physics , medicine , paleontology , psychology , power (physics) , computer security , quantum mechanics , psychological resilience , psychotherapist , thermodynamics
Abstract: The impact of an earthquake event on the performance of a highway transportation network depends on the extent of damage sustained by its individual components, particularly bridges. Seismic damageability of bridges expressed in the form of fragility curves can easily be incorporated into the scheme of risk analysis of a highway network under the seismic hazard. In this context, this article focuses on a nonlinear static method of developing fragility curves for a typical type of concrete bridge in California. The method makes use of the capacity spectrum method (CSM) for identification of spectral displacement, which is converted to rotations at bridge column ends. To check the reliability of this current analytical procedure, developed fragility curves are compared with those obtained by nonlinear time history analysis. Results indicate that analytically developed fragility curves obtained from nonlinear static and time history analyses are consistent.