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首页> 外文期刊>International Journal of Fatigue >Fatigue damage analysis of a riveted steel overhead crane support truss
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Fatigue damage analysis of a riveted steel overhead crane support truss

机译:铆接式高架起重机支撑桁架的疲劳损伤分析

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摘要

A method is proposed to evaluate the residual life of existing steel structures in terms of fatigue damage. The proposed method is demonstrated on the assessment of selected elements in a nearly 100-year old exterior riveted crane support truss. The Monte Carlo method is used to generate a time-dependent load based on the operation of the overhead crane, and detailed numerical modelling based on rainflow counting and the Palmgren-Miner rule to assess their fatigue resistance and estimate their residual life is evaluated and discussed. This study provides a novel approach to the reliability assessment of riveted joints stressed by cyclic loading and stochastic modelling of the load history of existing structures.
机译:提出了一种根据疲劳损伤评估现有钢结构剩余寿命的方法。在评估已使用了近100年的外部铆接起重机支撑桁架中的选定元素时,证明了所建议的方法。蒙特卡罗方法用于根据桥式起重机的运行产生时间相关的载荷,并基于雨流计数和Palmgren-Miner规则评估其疲劳强度并估计其剩余寿命的详细数值模型得到评估和讨论。这项研究提供了一种新颖的方法,可以对铆钉接头的可靠性进行评估,该方法是通过循环荷载和现有结构荷载历史的随机模型进行的。

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