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A Simplified Probabilistic Method for Reliability Evaluation of Design Codes: Applied for Railway Bridges Designed by Eourocode

A Simplified Probabilistic Method for Reliability Evaluation of Design Codes: Applied for Railway... Reliability methods are known as strong tools for safety evaluation of structures. Since mean value and standard deviation are two of the main inputs in these methods and depend on structural design, so for reliability evaluation of a design limit state, lots of structures should be designed. In this article a methodology is applied for reliability evaluation of design codes which in a mathematical procedure replaces mean value and standard deviation with bias and coefficient of variation. Since these two parameters do not vary with changes in structural design, this replacement results in a great reduction in structural calculations. This methodology can also evaluate reliability of a specific design limit state for different modes of failure. Using this methodology, reliability of fatigue and strength limit states in Eurocode have been evaluated for Railway truss bridges. The results show that fatigue design provides more safety than strength design. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advances in Structural Engineering SAGE

A Simplified Probabilistic Method for Reliability Evaluation of Design Codes: Applied for Railway Bridges Designed by Eourocode

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References (15)

Publisher
SAGE
Copyright
© 2014 SAGE Publications
ISSN
1369-4332
eISSN
2048-4011
DOI
10.1260/1369-4332.17.1.97
Publisher site
See Article on Publisher Site

Abstract

Reliability methods are known as strong tools for safety evaluation of structures. Since mean value and standard deviation are two of the main inputs in these methods and depend on structural design, so for reliability evaluation of a design limit state, lots of structures should be designed. In this article a methodology is applied for reliability evaluation of design codes which in a mathematical procedure replaces mean value and standard deviation with bias and coefficient of variation. Since these two parameters do not vary with changes in structural design, this replacement results in a great reduction in structural calculations. This methodology can also evaluate reliability of a specific design limit state for different modes of failure. Using this methodology, reliability of fatigue and strength limit states in Eurocode have been evaluated for Railway truss bridges. The results show that fatigue design provides more safety than strength design.

Journal

Advances in Structural EngineeringSAGE

Published: Jan 1, 2014

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