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既有混凝土桥梁疲劳寿命与使用安全评估

, PP. 101-107

Keywords: 桥梁工程,混凝土桥梁,安全评估,疲劳损伤,断裂力学,疲劳寿命

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Abstract:

?基于混凝土桥梁疲劳失效机理,提出了基于S-N曲线和断裂力学的混凝土桥梁疲劳寿命与使用安全评估方法。采用现场监测数据,对七狼窝黄河大桥T型梁受拉主筋的疲劳寿命进行了估算。结果表明:采用Miner疲劳损伤线性累积准则能够较好预测混凝土梁的疲劳使用寿命,考虑腐蚀影响时钢筋腐蚀疲劳寿命降低显著,仅为93年;按断裂力学模型估算的七狼窝黄河大桥T型梁受拉主筋的疲劳寿命约为280年,但计算结果未考虑腐蚀对疲劳寿命的影响,在进一步研究中应计入腐蚀对钢筋断裂力学参数的影响;混凝土桥梁疲劳寿命评估结果为既有桥梁科学维护决策提供了技术支撑。

References

[1]  王春生.铆接钢桥剩余寿命与使用安全评估[M].上海:同济大学出版社,2007.
[2]  ECCS.Recommendations for the Fatigue Design of Steel Structures[R].Brussels:ECCS,1985.
[3]  郑修麟.材料的力学性能[M].2版.西安:西北工业大学出版社,2007.
[4]  赵国藩.高等钢筋混凝土结构学[M].北京:中国电力出版社,1999.
[5]  李 干.既有公路混凝土桥梁疲劳寿命与使用安全评估研究[D].西安:长安大学,2011.
[6]  WANG Chun-sheng,CHENG Feng.Out-of-plane Distortional Fatigue Stress Analysis at Web Gaps of Steel Bridge[J].Journal of Architecture and Civil Engineering,2010,27(1):65-72.
[7]  肖建庄,陈德银,查全璠.高性能混凝土简支梁正截面的抗弯疲劳性能[J].建筑科学与工程学报,2008,25(1):96-101.
[8]  XIAO Jian-zhuang,CHEN De-yin,ZHA Quan-fan.Bending Fatigue Behavior of High-performance Concrete Simply-supported Beam[J].Journal of Architecture and Civil Engineering,2008,25(1):96-101.
[9]  崔 冰,吴 冲,丁文俊,等.车辆轮迹线位置对钢桥面板疲劳应力幅的影响[J].建筑科学与工程学报,2010,27(3):19-23.
[10]  CUI Bing,WU Chong,DING Wen-jun,et al.Influence of Acting Position of Vehicle Wheels on Fatigue Stress Range of Steel Deck[J].Journal of Architecture and Civil Engineering,2010,27(3):19-23.
[11]  查全璠,肖建庄.钢筋混凝土梁疲劳性能国内外研究综述[J].世界桥梁,2004 (3):30-34.
[12]  ZHAO Guo-fan.Advanced Reinforced Concrete Structures[M].Beijing:China Electric Power Press,1999.
[13]  宋玉普.混凝土结构的疲劳性能及设计原理[M].北京:机械工业出版社,2006.
[14]  SONG Yu-pu.Fatigue Behavior and Design Principle of Concrete Structures[M].Beijing:Machinery Industry Press,2006.
[15]  LENSCHOW R.Long Term Random Dynamic Loading of Concrete Structures[J].Materials and Structures,1980,13(3):274-278.
[16]  ACI Committee 215.Consideration for Design of Concrete Structure Subjected to Fatigue Loading[J].ACI Journal,1974,71(3):97-121.
[17]  WANG C,LI G,DONG X,et al.Fatigue Life Evaluation of Existing Highway Reinforced Concrete Bridges[C]//FRANGOPOL D M,SAUSE R,KUSKO C S.The 5th International Conference on Bridge Maintenance,Safety and Management.Boca Raton:The Chemical Rubber Company Press,2010:685.
[18]  LI Gan.Assessment of Fatigue Life and Service Safety for Existing Concrete Bridges[D].Xi'an:Chang'an University,2011.
[19]  王春生,成 锋.钢桥腹板间隙面外变形疲劳应力分析[J].建筑科学与工程学报,2010,27(1):65-72.
[20]  王春生,高 珊,任腾先,等.钢板-混凝土组合加固带损伤钢筋混凝土T梁的抗弯性能试验[J].建筑科学与工程学报,2010,27(3):94-101.
[21]  WANG Chun-sheng,GAO Shan,REN Teng-xian,et al.Bending Behavior Experiment of Damage RC T-beams with Steel Plate and Concrete Composite Strengthening[J].Journal of Architecture and Civil Engineering,2010,27(3):94-101.
[22]  ZHA Quan-fan,XIAO Jian-zhuang.An Overview of Domestic and Foreign Researches of Fatigue Behavior of Reinforced Concrete Beams[J].World Bridge,2004(3):30-34.
[23]  WANG Chun-sheng.Assessment of Remaining Fatigue Life and Service Safety for Riveted Steel Bridges[M].Shanghai:Tongji University Press,2007.
[24]  HERWIG A.Reinforced Concrete Bridges Under Increased Railway Traffic Loads:Fatigue Behavior and Safety Measures[D].Lausanne:Swiss Federal Institute of Technology Lausanne,2008.
[25]  TILLY G P.Durability of Concrete Bridges[J].Highways and Transportation,1988,35(2):10-19.
[26]  ZHENG Xiu-lin.Mechanical Behavior of Materials[M].2nd ed.Xi'an:Northwestern Polytechnical University Press,2007.

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