考虑车桥耦合效应的大跨悬索桥钢-混组合梁疲劳损伤评估

朱劲松1,2,香超1,祁海东3

振动与冲击 ›› 2021, Vol. 40 ›› Issue (5) : 218-229.

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (5) : 218-229.
论文

考虑车桥耦合效应的大跨悬索桥钢-混组合梁疲劳损伤评估

  • 朱劲松1,2,香超1,祁海东3
作者信息 +

Fatigue damage evaluation of steel-concrete composite beam of long-span suspension bridge considering vehicle-bridge coupled effect

  • ZHU Jinsong1,2, XIANG Chao1, QI Haidong3
Author information +
文章历史 +

摘要

为了研究不同疲劳车辆荷载作用下大跨度悬索桥钢-混组合梁的疲劳寿命,以及在考虑车桥耦合效应变化时运营期内钢-混组合梁疲劳损伤累积变化规律,以某主跨720米的悬索桥为例进行了分析。首先基于局部梁段有限元模型静力分析确定了疲劳细节关注点,得出相应的应力集中系数;然后利用P-M及CDM两种评估模型对疲劳荷载模型Ⅲ、AASHTO规范标准疲劳车及河北省疲劳荷载谱三类疲劳车辆荷载作用下的疲劳损伤度及疲劳寿命进行了评估;最后考虑车桥耦合动力效应分析了车辆载重量、行车速度、桥面铺装恶化及未来交通量增长对结构运营期内的疲劳损伤累积的影响。结果表明,该类钢-混组合梁悬索桥疲劳状态评估最不利梁段为1/8跨处,易发生疲劳破坏的节点为靠近吊点位置的主梁顶板与腹板连接处。疲劳荷载模型Ⅲ与当地疲劳荷载谱作用下的疲劳损伤量比较接近,AASHTO疲劳车作用下的损伤累积量明显低于另外两类。不同部位疲劳细节关注点的累积损伤量变化趋势与速度的关系不太明确,行车载重量、交通量增长以及桥面铺装恶化均加速疲劳损伤累积的增长。

Abstract

In order to study the fatigue life of steel-concrete composite beams of long-span suspension bridges under different fatigue vehicle loads and the cumulative variation of fatigue damage during operation period considering the change of vehicle-bridge coupling effect. Taking a suspension bridge with a main span of 720 meters as the engineering background, the fatigue details are determined based on the static analysis of the finite element model of the local beam section, and the corresponding stress concentration factor is obtained. Then the fatigue damage degree and fatigue life of fatigue load model III, AASHTO standard fatigue vehicle and Hebei Province fatigue load spectrum are evaluated by using P-M and CDM evaluation models. Finally, considering the vehicle-bridge coupling dynamic effect, the effects of vehicle load, vehicle speed, deck pavement deterioration and future traffic growth on fatigue damage accumulation during the operation period of the structure are analyzed. The results show that the most disadvantageous section for fatigue assessment of steel-concrete composite beams is 1/8 span, and the joints prone to fatigue damage are the joints of the main girder roof and web near the suspension point. Fatigue load model III is close to the fatigue damage under local fatigue load spectrum, and the damage accumulation under AASHTO fatigue vehicle is significantly lower than that under the other two categories. The relationship between cumulative damage change trend and speed of fatigue details in different parts is not clear. The cumulative increase of fatigue damage is accelerated by the increase of vehicle load, traffic volume and deterioration of bridge deck pavement.

关键词

悬索桥 / 钢-混组合梁 / 车桥耦合效应 / 疲劳损伤评估 / 影响因素

Key words

Suspension bridge / Steel-concrete composite beam / Vehicle-bridge coupling effect / Fatigue damage assessment / influence factor

引用本文

导出引用
朱劲松1,2,香超1,祁海东3. 考虑车桥耦合效应的大跨悬索桥钢-混组合梁疲劳损伤评估[J]. 振动与冲击, 2021, 40(5): 218-229
ZHU Jinsong1,2, XIANG Chao1, QI Haidong3. Fatigue damage evaluation of steel-concrete composite beam of long-span suspension bridge considering vehicle-bridge coupled effect[J]. Journal of Vibration and Shock, 2021, 40(5): 218-229

参考文献

[1] 滕小竹. 大跨度钢桁梁悬索桥关键问题研究[D]. 同济大学,2008.
Teng Xiaozhu. Study on Key Issues of Long-span Suspension Bridges with Steel Truss Girder[D]. Tongji university,2008(in Chinese).
[2] 聂建国,王宇航. 钢-混凝土组合梁疲劳性能研究综述[J]. 工程力学,2012,29(06):1-11.
NIE Jianguo,Wang Yuhang. Research Status on Fatigue Behavior of Steel-Concrete Composite Beams[J]. Engineering Mechanics,2012,29(06):1-11(in Chinese).
[3] 李小珍,谭清泉,肖林. 钢-混凝土组合梁疲劳性能试验研究[J]. 桥梁建设,2017,47(06):12-17.
Li Xiaozhen,Tan Qingquan,Xiao Lin. Experimental Study of Fatigue Behavior of Steel and Concrete Composite Beams[J]. Bridge Construction,2017,47(06):12-17(in Chinese).
[4] 刘诚,樊健生,聂建国,等. 钢-超高性能混凝土组合桥面系中栓钉连接件的疲劳性能研究[J] . 中国公路学报,2017,30(03):139-146.
Liu Cheng,Fan Jiansheng,Nie Jianguo,et al. Fatigue Performance Research of Headed Studs in Steel and Ultra-high Performance Concrete Composite Deck[J] . China Journal of Highway and Transport,2017,30(03):139-146(in Chinese).
[5] 李慧乐,夏禾,张楠,等. 基于车桥耦合动力分析的钢桥疲劳损伤与剩余寿命评估[J].  铁道学报,2017,39(1):104-110.
Li Huile,Xia He,Zhang Nan,et al. Assessment of Fatigue Damage and Remaining Life of Steel Bridges Based on Train-bridge Coupling Dynamic Analysis[J]. Journal of the China Railway Society,2017,39(1):104-110(in Chinese).
[6] 邓露,王维,何旭辉. 基于美国规范的桥梁疲劳设计优化及应用[J]. 中国公路学报,2017,30(3):40-48.
Deng Lu,Wang Wei,He Xuhui. Optimization and Application of Fatigue Design Based on AASHTO Code[J] . China Journal of Highway and Transport,2017,30(3):40-48(in Chinese).
[7] Wang W,Deng L,Shao X. Fatigue Design of Steel Bridges Considering the Effect of Dynamic Vehicle Loading and Overloaded Trucks[J]. Journal of Bridge Engineering,2016,21(9):04016048.
[8] Albuquerque C,António L.L. Silva,Abílio M.P. de Jesus,et al. An Efficient Methodology for Fatigue Damage Assessment of Bridge Details Using Modal Superposition of Stress Intensity Factors[J]. International Journal of Fatigue,2015,81(1):61-77.
[9] 周泳涛,鲍卫刚,翟辉,等. 公路钢桥疲劳设计荷载标准研究[J]. 土木工程学报,2010,43(11):79-85.
Zhou Yongtao,Bao Weigang,Zhai Hui,et al. Study of Standard Fatigue Design Load for Steel Highway Bridges[J]. China Civil Engineering Journal,2010,43(11):79-85(in Chinese).
[10] 叶星汉,曹一山,曹星儿,等. 正交异性钢桥面板U肋-盖板焊接节点的疲劳性能试验[J]. 公路交通科技,2017,34(9):68-75.
Ye Xinghan,Cao Yishan,Cao Xinger,et al. Fatigue Test on U-rib-to-deck Connections in Orthotropic Steel Bridge Decks[J]. Journal of Highway and Transportation Research and Development,2017,34(9):68-75(in Chinese).
[11] 卫星,吴琛泰,巨云华,等. 钢管混凝土桁架拱桥板—管焊接节点热点应力集中系数研究[J]. 中国铁道科学,2018,39(05):67-72.
Wei Xing,Wu Chentai,Ju Yunhua,et al. Study on Stress Concentration Coefficient of Steel Tubular Truss Arch Bridge Plate-pipe Welding Joint[J]. China Railway Science,2018,39(05):67-72(in Chinese).
[12] 赵博. 钢桥正交异性桥面系横隔板疲劳性能研究[D]. 天津大学,2017.
Zhao Bo. Research on Fatigue Behavior of Diaphragms for Orthotropic Decks of Steel Bridge Structures[D]. Tianjin University,2017(in Chinese).
[13] 赵建峰. 多地域公路桥梁常规车辆及特重车荷载研究[D]. 长安大学,2014.
Zhao Jianfeng. Research on Load of Conventional Vehicles and Extra-heavy Vehicles on Multi-Region Highway Bridges[D]. Changan University,2014(in Chinese).
[14] 张新天,罗晓辉. 灰色理论与模型在交通量预测中的应用[J]. 公路,2001(08):4-7.
Zhang Xintian,Luo Xiaohui. Application of Grey Theory and Model in Traffic Volume Prediction[J]. Highway,2001(08):4-7(in Chinese).
[15] 朱劲松,邑强. 中下承式拱桥吊杆应力冲击系数不均匀性研究[J]. 振动与冲击,2012,31(13):5-10.
Zhu Jinsong,Yi Qiang. Non-uniformity of Stress Impact Factor of Suspenders on Half-through or Through Arch Bridges[J]. Journal of Vibration and Shock,2012,31(13):5-10(in Chinese).
[16] 朱劲松,李俊驰. 基于DVV算法的车桥耦合振动响应非线性规律研究[J]. 合肥工业大学学报(自然科学版),2017,40(10):1376-1381+1415.
Zhu Jinsong,Li Junchi. Study of Nonlinear Regularity of Vehicle-bridge Coupled Vibration Based on DVV Algorithm[J]. Journal of Hefei University of Technology(Natural Science) ,2017,40(10):1376-1381+1415(in Chinese).
[17] 鲁乃唯,刘扬,邓扬. 随机车流作用下悬索桥钢桥面板疲劳损伤与寿命评估[J]. 中南大学学报(自然科学版),2015,46(11):4300-4306.
Lu Naiwei,Liu Yang,Deng Yang. Fatigue Damage and Life Assessment for Steel Decks of Suspension Bridge under Stochastic Traffic Flow[J]. Journal of Central South University(Science and Technology) ,2015,46(11):4300-4306(in Chinese).
[18] 邓晓光,刘沐宇,史晶,等. 大跨径双层悬索桥钢桁梁整体焊接节点疲劳分析与试验[J]. 中国公路学报,2017,30(03):96-103.
Deng Xiaoguang,Liu Muyu,Shi Jing,et al. Fatigue Analysis and Test on Integral Welded Joint at Steel Truss Girder of Long-span Double Deck Suspension Bridge[J]. China Journal of Highway and Transport,2017,30(03):96-103(in Chinese).
[19] Li Z X,Chan T H T,Ko J M. Fatigue Damage Model for Bridge under Traffic Loading: Application Made to Tsing Ma Bridge[J]. Theoretical & Applied Fracture Mechanics,2001,35(1):81-91.
[20] 吴志文. 随机车载下钢筋混凝土桥面板疲劳寿命分析方法研究[D]. 哈尔滨工业大学,2016.
Wu Zhiwen. Research on Fatigue Life Analysis Method of Reinforced Concrete Bridge Deck under Random Vehicle[D]. Harbin Institute of Technology,2016(in Chinese).
[21] 朱劲松,香超,祁海东. 大跨度悬索桥冲击系数影响因素研究[J]. 天津大学学报(自然科学与工程技术版),2019,52(04):413-422.
Zhu Jinsong,Xiang Chao,Qi Haidong. Study of Influencing Factors of Impact Coefficient of Long-Span Suspension Bridge[J]. Journal of Tianjin University(Science and Technology) ,2019,52(04):413-422.
[22] 祝志文,黄炎,向泽,等. 货运繁重公路正交异性板钢桥弧形切口的疲劳性能[J]. 中国公路学报,2017,30(03):104-112.
Zhu Zhiwen,Huang Yan,Xiang Ze,et al. Fatigue Performance of Floorbeam Cutout Detail of Orthotropic Steel Bridge on Heavy Freight Transportation Highway[J]. China Journal of Highway and Transport,2017,30(03):104-112(in Chinese).
[23] Zhang W,Yuan H. Corrosion Fatigue Effects on Life Estimation of Deteriorated Bridges under Vehicle Impacts [J]. Engineering Structures,2014,71(7):128-136.
[24] Zhang W,Cai C S. Fatigue Reliability Assessment for Existing Bridges Considering Vehicle Speed and Road Surface Conditions [J]. Journal of Bridge Engineering,2012,17(3):443-453.
[25] Alencar G,Jesus A M P D,Rui Calçada,et al. Fatigue Life Evaluation of a Composite Steel-concrete Roadway Bridge through the Hot-spot Stress Method Considering Progressive Pavement Deterioration [J]. Engineering Structures,2018,166(1 July):46-61.

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