| 基于可靠度的桥梁使用寿命分析 |
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| 引用本文： | 刘军,邬晓光,张彦飞. 基于可靠度的桥梁使用寿命分析[J]. 长安大学学报(自然科学版), 2010, 0(1) |
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| 作者姓名： | 刘军 邬晓光 张彦飞 |
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| 作者单位： | 山西省公路局;长安大学公路学院; |
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| 基金项目： | 山西省科技攻关项目(07-14) |
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| 摘 要： | 为了对桥梁结构进行寿命分析,基于蒙特卡罗计算方法,运用了ANSYS有限元程序,以时间为基本变量的材料性能参数和荷载变化特征为变量,建立了桥梁结构的抗力与荷载模型,计算出桥梁结构的应力、变形值,再由2条桥梁可靠性判定准则推算出桥梁在不同运营时期的可靠概率,由此可以得出桥梁的时间-可靠概率关系曲线,从而可以从曲线图中读取不同使用期的可靠概率,推算出桥梁的使用寿命和剩余使用寿命。
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| 关 键 词： | 桥梁工程 可靠度 抗力 荷载 寿命 |
Bridge structure's service life based on reliability |
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| LIU Jun,WU Xiao-guang,ZHANG Yan-fei. Bridge structure's service life based on reliability[J]. JOurnal of Chang’an University:Natural Science Edition, 2010, 0(1) |
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| Authors: | LIU Jun WU Xiao-guang ZHANG Yan-fei |
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| Affiliation: | LIU Jun1,WU Xiao-guang2,ZHANG Yan-fei1(1.Shanxi Province Bureau of Highway,Taiyuan 030006,Shanxi,China,2.School of Highway,Chang'an University,Xi'an 710064,Shaanxi,China) |
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| Abstract: | In order to analyze the life of the bridge structure,based on Monte Carlo reliability calculation method,using the ANSYS program to establish material properties change in variables and load characteristic variables,which based on time as the basic variables,the obeyed distribution patterns,the structure of the bridge resistance and load model are presented to obtain the bridge structure stress and deformation by calculation,then through the criteria for judging the reliability of two bridges to calculate t... |
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| Keywords: | bridge engineering reliability resistance load life |
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