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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.

Keywords

reliability eurocode fatigue strength limit states railway truss bridges

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

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