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Abstract
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Article Information:
Practical Approach to Fragility Analysis of Bridges
Yasamin Rafie Nazari and Khosrow Bargi
Corresponding Author: Yasamin Rafie Nazari
Submitted: April 10, 2012
Accepted: May 14, 2012
Published: December 01, 2012 |
Abstract:
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Damages during past earthquakes reveal seismic vulnerability of bridge structures and the necessity
of probabilistic approach toward seismic performance evaluation of bridges and its interpretation in terms of
decision variables such as repair cost, downtime and life loss. This Procedure involves hazard analysis,
structural analysis, damage analysis and loss analysis. The purpose of present study is reviewing different
methods developed to derive fragility curves for damage analysis of bridges and demonstrating a simple
procedure for fragility analysis using Microsoft Office Excel worksheet to reach probability of occurring
predefined level of damage due to different levels of seismic demand parameters. The input of this procedure
is the intensity of ground motion and the output is an appropriate estimate of the expected damage. Different
observed damages of the bridges are discussed and compared the practical definition of damage states. Different
methods of fragility analyses are discussed and a practical step by step example is illustrated.
Key words: Bridge vulnerability, fragility curves, seismic assessment, , , ,
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Cite this Reference:
Yasamin Rafie Nazari and Khosrow Bargi, . Practical Approach to Fragility Analysis of Bridges. Research Journal of Applied Sciences, Engineering and Technology, (23): 5177-5182.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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