大纵肋钢桥抗疲劳设计方法研究
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摘要
针对目前大纵肋正交异性钢桥面板疲劳影响因素及抗疲劳性能研究较少的情况,本文基于有限元软件ANSYS,分别建立普通和大纵肋两个正交异性钢桥面板有限元模型,以3个典型疲劳细节为研究对象,基于最大主应力为评价指标,研究不同横肋板、U肋和顶板厚度的工况下两个正交异形钢桥面板的疲劳敏感性,详细对比了普通和大纵肋两个正交异性钢桥面板的疲劳特征。
In view of the fact that the fatigue influencing factors and fatigue resistance of large longitudinal rib orthotropic steel bridge decks are few,the finite element model of two orthogonal steel bridges of ordinary and large longitudinal ribs is established based on finite element software ANSYS. Taking three typical fatigue details as the research object,based on the maximum principal stress as the evaluation index, the fatigue sensitivities of two orthogonal shaped steel bridge decks under different working conditions of transverse ribs, U ribs and roof thickness were studied. Fatigue characteristics of two orthogonal steel bridge decks with large longitudinal ribs.
In view of the fact that the fatigue influencing factors and fatigue resistance of large longitudinal rib orthotropic steel bridge decks are few,the finite element model of two orthogonal steel bridges of ordinary and large longitudinal ribs is established based on finite element software ANSYS. Taking three typical fatigue details as the research object,based on the maximum principal stress as the evaluation index, the fatigue sensitivities of two orthogonal shaped steel bridge decks under different working conditions of transverse ribs, U ribs and roof thickness were studied. Fatigue characteristics of two orthogonal steel bridge decks with large longitudinal ribs.
引文
[1]唐亮,黄李骥,刘高.正交异性钢桥面板足尺模型疲劳试验[J].土木工程学报,2014(3):112-122.
[2]王春生,翟慕赛,HOUANKPO,.正交异性钢桥面板冷维护技术及评价方法[J].中国公路学报,2016,29(8):50-58.
[3]崔闯,卜一之,张清华.基于热点应力法的正交异性钢桥面板疲劳寿命评估[J].桥梁建设,2014,44(4):62-67.
[4]Xing W,Zou X X,Su J,et al.Numerical Simulation of Residual Stress in Rib-to-Top Plate Welding of Orthotropic Steel Bridge Deck[J].Bridge Construction,2014,44(4):27-33.
[5]王辉,李文华,李国帅.轮载横向分布对正交异性钢桥面板疲劳行为的影响研究[J].公路工程,2015,40(2):113-116.
[6]王甜,祝志文,向建军.随机车流下正交异性钢桥面板弧形切口应力响应特征研究[J].公路工程,2016,41(2):66-71.
[7]Zhang Q H,Peng Z,Liu Y M,et al.Study of Mechanical Behavior of New Type of Orthotropic Composite Bridge Deck with Large Longitudinal U Ribs[J].Bridge Construction,2017,47(3):30-35.
[8]王辉,霍智宇,刘峰作.超载对正交异性钢桥面板疲劳寿命影响研究[J].公路工程,2017,42(4):59-62.
[9]陆林娟,王辉.正交异性钢桥面板关键构造细节应变测试及有限元分析[J].公路工程,2015(5):220-224.
[10]曾勇,渠昱,顾安邦.钢箱梁悬索桥大节段正交异性钢桥面板疲劳性能试验[J].哈尔滨工业大学学报,2016,48(9):95-100.
[11]Wang W,Deng L,Shao X.Number of stress cycles for fatigue design of simply-supported steel I-girder bridges considering the dynamic effect of vehicle loading[J].Engineering Structures,2016,110:70-78.
[12]韩冰,蒲黔辉,施洲,等.桥梁正交异性板焊接构造热点应力计算方法研究[J].桥梁建设,2015(1):56-61.
[13]Zhang Q H,Gang S,Yi-Zhi B U.Study of Interface Slip Effect of Orthotropic Composite Bridge Deck[J].Bridge Construction,2017,47(1):47-52.
[14]吴美艳,周尚猛.超高性能混凝土组合钢桥面承载性能试验研究[J].桥梁建设,2017,47(3):25-29.
[15]韩冰,蒲黔辉,施洲.正交异性钢桥面板足尺模型疲劳试验研究[J].桥梁建设,2016,46(4):61-66.
[2]王春生,翟慕赛,HOUANKPO,.正交异性钢桥面板冷维护技术及评价方法[J].中国公路学报,2016,29(8):50-58.
[3]崔闯,卜一之,张清华.基于热点应力法的正交异性钢桥面板疲劳寿命评估[J].桥梁建设,2014,44(4):62-67.
[4]Xing W,Zou X X,Su J,et al.Numerical Simulation of Residual Stress in Rib-to-Top Plate Welding of Orthotropic Steel Bridge Deck[J].Bridge Construction,2014,44(4):27-33.
[5]王辉,李文华,李国帅.轮载横向分布对正交异性钢桥面板疲劳行为的影响研究[J].公路工程,2015,40(2):113-116.
[6]王甜,祝志文,向建军.随机车流下正交异性钢桥面板弧形切口应力响应特征研究[J].公路工程,2016,41(2):66-71.
[7]Zhang Q H,Peng Z,Liu Y M,et al.Study of Mechanical Behavior of New Type of Orthotropic Composite Bridge Deck with Large Longitudinal U Ribs[J].Bridge Construction,2017,47(3):30-35.
[8]王辉,霍智宇,刘峰作.超载对正交异性钢桥面板疲劳寿命影响研究[J].公路工程,2017,42(4):59-62.
[9]陆林娟,王辉.正交异性钢桥面板关键构造细节应变测试及有限元分析[J].公路工程,2015(5):220-224.
[10]曾勇,渠昱,顾安邦.钢箱梁悬索桥大节段正交异性钢桥面板疲劳性能试验[J].哈尔滨工业大学学报,2016,48(9):95-100.
[11]Wang W,Deng L,Shao X.Number of stress cycles for fatigue design of simply-supported steel I-girder bridges considering the dynamic effect of vehicle loading[J].Engineering Structures,2016,110:70-78.
[12]韩冰,蒲黔辉,施洲,等.桥梁正交异性板焊接构造热点应力计算方法研究[J].桥梁建设,2015(1):56-61.
[13]Zhang Q H,Gang S,Yi-Zhi B U.Study of Interface Slip Effect of Orthotropic Composite Bridge Deck[J].Bridge Construction,2017,47(1):47-52.
[14]吴美艳,周尚猛.超高性能混凝土组合钢桥面承载性能试验研究[J].桥梁建设,2017,47(3):25-29.
[15]韩冰,蒲黔辉,施洲.正交异性钢桥面板足尺模型疲劳试验研究[J].桥梁建设,2016,46(4):61-66.