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空间刚架桥剪力销结构基于S-N曲线的疲劳寿命可靠性评估

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桥梁结构的疲劳过程是一个受大量因素影响的极其复杂的现象,大多数影响因素从本质上说是随机的。本文在建立极限状态方程的基础上,分析了随机变量的数字特征。引入一阶二次矩的方法,应用基于S N-曲线和 Miner 线性损伤累积法则来对高速铁路空间刚架桥剪力销结构的疲劳寿命进行可靠性评估。
A high speed railway spatial rigid frame shear pin structure based on S-N curve of fatigue life reliability assessment
Bridge structure fatigue process is a large number of factors that influence the extremely complex phenomenon, most influence factor is essentially random. In this paper the limit state equation on the basis of analysis, numerical characteristics of random variable. Introduction of the first order two moment method, based on the curve and the Miner linear cumulative damage rule of high speed railway spatial rigid frame shear pin structure fatigue life reliability assessment.

high speed railwayshear pinfatigueS-N curvefatigue reliability

施永恒

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佛山市南海区铁路投资有限公司,广东,佛山,528000

高速铁路 剪力销 疲劳 S-N 曲线 疲劳可靠性

2013

建筑与文化(学术版)
世纪图书出版公司

建筑与文化(学术版)

ISSN:1672-4909
年,卷(期):2013.(1)
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