Pavement Rutting Analysis Based on Vehicle-Road Interaction Under Thermal Effects
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摘要: 研究沥青路面结构的车辙问题,首先基于车辆与路面的相互耦合作用,建立路面不平整度引起的车辆荷载简化模型;然后根据沥青混合料蠕变试验数据,拟合出基于修正Burgers模型的沥青路面车辙的计算参数;最后结合气温观测数据,借助ABAQUS有限元软件,引入路面温度场,建立了考虑连续变温的日车辙预估计算模型.模拟了考虑车辆路面相互作用的沥青路面在连续变温条件下的车辙变化规律,并分析研究了温度、车辆荷载以及车速对车辙的影响.结果表明,考虑车辆路面相互作用得到的日累积车辙深度增大了6.5%,说明这一因素对沥青路面车辙的预测是不可忽略的;轴载及路面不平整度均与车辙量线性相关;而相同轴载作用下,温度越高,车辙增长越快,得到的车辙量越大;随着车速增大,车辙深度呈减小趋势,并且在车辆与路面发生共振的车速下,该文模型得到的结果增大了32%.
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关键词:
- 车-路相互作用 /
- 车辙 /
- 变温 /
- 修正Burgers模型
Abstract: To study the rutting of asphalt pavement, first, based on the vehicle-road interaction, a simplified model for the dynamic vehicle load caused by road roughness was established; then according to the data from creep tests of asphalt mixture, the parameters for the calculation of asphalt pavement rutting with the modified Burgers’ model, were obtained through fitting; finally, in combination with the observed temperature data and with the ABAQUS finite element software, the pavement temperature field was introduced and the calculation model was established for the daily rutting prediction in view of consecutive temperature variation. The rutting growth of asphalt pavement based on vehicle-road interaction under thermal effects was simulated, and the effects of the pavement temperature, the vehicle load and the vehicle speed on the rutting were parametrically analyzed. The results show that, the rutting depth increases by 6.5% when the vehicle-road interaction is considered, indicating this factor can’t be ignored in the asphalt pavement rutting prediction. Both the axle load and the pavement roughness are related to the rutting linearly. Under the same axle load, the higher the temperature is, the faster the rutting grows and the bigger the final rutting depth gets, and the rutting decreases with the vehicle speed. Moreover, at a vehicle speed where the resonant vehicle-road interaction occurs, the resulting rutting depth is 32% bigger than that in the case without this interaction.-
Key words:
- vehicle-road interaction /
- rutting /
- temperature change /
- modified Burgers’ model
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[1] 罗红, 梁波, 吴志华, 等. 半车车辆-道路耦合动力分析模型的研究与应用[J]. 应用数学和力学, 2014,35(7): 737-749.(LUO Hong, LIANG Bo, WU Zhi-hua, et al. Study and application of 4-DOF 1/2 vehicle-road coupling dynamic model[J]. Applied Mathematics and Mechanics,2014,35(7): 737-749.(in Chinese)) [2] 梁波, 罗红, 马学宁. 二系悬挂条件下的车-路垂向耦合系统的动力模型[J]. 应用数学和力学, 2007,28(6): 684-692.(LIANG Bo, LUO Hong, MA Xue-ning. Dynamic model of the vertical vehicle-subgrade coupled system under secondary suspension[J]. Applied Mathematics and Mechanics,2007,28(6): 684-692.(in Chinese)) [3] 张丙强, 李亮. 车辆-路面耦合振动系统模型与仿真分析[J]. 振动与冲击, 2010,29(2): 35-38.(ZHANG Bing-qiang, LI Liang. Dynamic model and simulation of a vehicle-road coupled system[J]. Journal of Vibration and Shock,2010,29(2): 35-38.(in Chinese)) [4] 李倩, 刘俊卿, 陈诚诚. 随机激励下四自由度车辆-道路耦合系统动力分析[J]. 应用数学和力学, 2015,36(5): 460-473.(LI Qian, LIU Jun-qing, CHEN Cheng-cheng. Dynamic analysis of the 4-DOF vehicle-road coupling system under random excitation[J]. Applied Mathematics and Mechanics,2015,36(5): 460-473.(in Chinese)) [5] LU Yong-jie, YANG Shao-pu, LI Shao-hua, et al. Numerical and experimental investigation on stochastic dynamic load of a heavy duty vehicle[J]. Applied Mathematical Modelling,2010,34(10): 2698-2710. [6] 封基良, 许爱华, 席晓波. 沥青路面车辙预测的粘弹性分析方法[J]. 公路交通科技, 2004,21(5): 12-14.(FENG Ji-liang, XU Ai-hua, XI Xiao-bo. Visco-elastic method for prediction of asphalt pavement rutting[J]. Journal of Highway and Transportation Research and Development,2004,21(5): 12-14.(in Chinese)) [7] HUA Jian-feng. Finite element modeling and analysis of accelerated pavement testing devices and rutting phenomenon[D]. PhD Thesis. Indiana: Purdue University, 2000. [8] 付宏渊, 郭芳, 邵腊庚. 基于温度场的混合式基层沥青路面结构车辙数值模拟分析[J]. 公路交通科技, 2015,32(12): 46-52.(FU Hong-yuan, GUO Fang, SHAO La-geng. Numerical analysis of rutting in composite base asphalt pavement structure based on temperature field[J]. Journal of Highway and Transportation Research and Development,2015,32(12): 46-52.(in Chinese)) [9] 张久鹏, 裴建中, 王秉纲. 连续变温下沥青路面车辙分析与高温预警[J]. 同济大学学报(自然科学版), 2011,39(2): 242-246.(ZHANG Jiu-peng, PEI Jian-zhong, WANG Bing-gang. Analysis of asphalt pavement rutting in continuously changing temperature field and early warning for high temperature[J]. Journal of Tongji University (Natural Science),2011,39(2): 242-246.(in Chinese)) [10] 何兆益, 雷婷, 陈洪兴, 等. 沥青路面车辙变形的三维粘弹性动力有限元分析[J]. 重庆建筑大学学报, 2008,30(6): 32-36.(HE Zhao-yi, LEI Ting, CHEN Hong-xing, et al. A 3D visco-elasto-plastic finite element analysis of the asphalt pavement rutting deformation[J]. Journal of Chongqing Jianzhu University,2008,30(6): 32-36.(in Chinese)) [11] 李丽民, 何兆益, 张国祥, 等. 基于动力有限元法的车辙预估计算方法及应用[J]. 振动与冲击, 2010,29(11): 143-146.(LI Li-min, HE Zhao-yi, ZHANG Guo-xiang, et al. Calculation method for rutting prediction based on dynamic FEM[J]. Journal of Vibration and Shock,2010,29(11): 143-146.(in Chinese)) [12] 梁波, 苏世毅, 罗红. 不平整条件下车-路耦合作用动力分析[J]. 工程力学, 2009,26(3): 189-194.(LIANG Bo, SU Shi-yi, LUO Hong. Coupled dynamic analysis of vehicle-road system under roughness conditions[J]. Engineering Mechanics,2009,26(3): 189-194.(in Chinese)) [13] 付凯敏, 黄晓明. 基于ABAQUS的修正Burgers蠕变模型二次开发[J]. 公路工程, 2008,33(3): 132-137.(FU Kai-min, HUANG Xiao-ming. The secondary development of modified Burgers creep model based on ABAQUS general software[J]. Highway Engineering,2008,33(3): 132-137.(in Chinese)) [14] 付凯敏. 沥青路面结构车辙模拟及抗车辙性能研究[D]. 硕士学位论文. 南京: 东南大学, 2008.(FU Kai-min. Research on the rutting simulatin and resistance characters of asphalt pavement structures[D]. Master Thesis. Nanjing: Southeast University, 2008.(in Chinese)) [15] 张泽文, 张晓华, 刘松. 汉宜高速公路交通量调查与分析[J]. 交通科技, 2004(3): 91-93.(ZHANG Ze-wen, ZHANG Xiao-hua, LIU Song. Traffic volume survey and analysis in Han-Yi expressway[J]. Transportation Science & Technology,2004(3): 91-93.(in Chinese)) [16] 王孙富. 沥青路面结构温度场与温度应力的数值模拟分析[D]. 哈尔滨: 哈尔滨工业大学, 2010.(WANG Sun-fu. Study on simulation analysis of temperature field and thermal stress for bituminous pavement structure[D]. Master Thesis. Harbin: Harbin Institute of Technology, 2010.(in Chinese)) [17] 黄晓明, 汪双杰. 现代沥青路面结构分析理论与实践[M]. 北京: 科学出版社, 2013.(HUANG Xiao-ming, WANG Shuang-jie. Analysis Theory and Practice of Modern Asphalt Pavement Structure [M]. Beijing: Science Press, 2013.(in Chinese))
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