考虑钢桥面板铺装层黏弹性特性的车辙计算
|
摘要
黏弹性是沥青混合料的重要特性之一,也是影响沥青路面车辙的重要因素。为了对南京四桥钢桥面铺装的车辙进行正确预测,利用贯入试验获得了沥青混合料的实际黏弹性参数,通过静力等效方法预测桥面铺装车辙量并与实测值进行对比。首先通过沥青混合料贯入试验获得沥青铺装层基于修正Burgers模型的黏弹性Prony参数;其次,建立了包含正交异性钢桥面板及桥面铺装层的结构局部节段的ANSYS有限元模型,利用桥梁监测系统实测的铺装层温度历程,将其转化为等效温度作用,并将桥梁设计车辆荷载转化为规定的双轮恒定静荷载,通过计算确定了车辆横向最不利加载位置;然后利用获得的沥青路面结构层的黏弹性参数和建立的有限元模型分别计算不同车道位置处的沥青路面车辙量;最后将计算车辙与南京四桥实测车辙量进行了对比。计算和实测结果的对比表明,利用Prony级数模型参数和静载等效方法得到的计算结果与桥梁铺装层的实测结果变化趋势一致,吻合度较好,证明笔者提出的沥青路面黏弹性参数获得方法以及路面车辙模拟方法是可靠的,可用于实际车辙的分析和预估。
Viscoelasticity is one of the important characteristics of asphalt mixture and the main factor that causes the rutting on the pavement. To predict the rutting on asphalt pavement of the 4 th Nanjing Yangtze River Bridge,a novel method is proposed,which involves obtaining the accurate viscoelastic parameters of deck pavement and transforming the vehicle loads to static pressure on the pavement. First the viscoelastic material parameters are obtained from penetration experiments via the Prony series form of the shear relaxation modulus which can be conveniently utilized by ANSYS software. Then the material parameters could be calculated from the experiments using an iterative procedure and considering the stress characteristics of asphalt mixture specimens. The local FEM model of orthotropic steel bridge deck including the pavement is established to simulate the load effect of living vehicles. The representative temperatures of deck pavement in different months are calculated by the code recommendations using actual temperatures in recent two years,which are obtained from structural health monitoring sensors imbedded in the middle layers of deck pavement structure of the 4 th Nanjing Yangtze River Bridge. The standard local vehicle loading that is defined by the Chinese bridge design codes as well as the standard pressure on the deck pavement are presented at the same time.The critical transversal loading positions are determined by the FEM simulation from three possible vehicle lanes. Finally,the rutting of deck pavement is addressed by FEM software with the transformed temperature and vehicle loading data. The calculated results suggest that the heavy traffic lane has more effect on loading time than the regular traffic lane due to heavier loading and more traffic cycles. At the same time,the simulated rutting is larger in summer time for the high environmental temperature. The simulation results and measured rutting are compared with each other,which shares the same inclination and agrees favorably. To summarize,in order to have a favorable estimation of deck pavement rutting,the factors including the material viscoelastic properties,the environmental temperature as well as the living loading conditions should be considered simultaneously. The results indicate that the proposed method and procedures in this paper are reliable in predicting the rutting of deck pavement on steel box girder,which could be applied for predicting the rutting of deck pavement in relating comparable engineering projects.
Viscoelasticity is one of the important characteristics of asphalt mixture and the main factor that causes the rutting on the pavement. To predict the rutting on asphalt pavement of the 4 th Nanjing Yangtze River Bridge,a novel method is proposed,which involves obtaining the accurate viscoelastic parameters of deck pavement and transforming the vehicle loads to static pressure on the pavement. First the viscoelastic material parameters are obtained from penetration experiments via the Prony series form of the shear relaxation modulus which can be conveniently utilized by ANSYS software. Then the material parameters could be calculated from the experiments using an iterative procedure and considering the stress characteristics of asphalt mixture specimens. The local FEM model of orthotropic steel bridge deck including the pavement is established to simulate the load effect of living vehicles. The representative temperatures of deck pavement in different months are calculated by the code recommendations using actual temperatures in recent two years,which are obtained from structural health monitoring sensors imbedded in the middle layers of deck pavement structure of the 4 th Nanjing Yangtze River Bridge. The standard local vehicle loading that is defined by the Chinese bridge design codes as well as the standard pressure on the deck pavement are presented at the same time.The critical transversal loading positions are determined by the FEM simulation from three possible vehicle lanes. Finally,the rutting of deck pavement is addressed by FEM software with the transformed temperature and vehicle loading data. The calculated results suggest that the heavy traffic lane has more effect on loading time than the regular traffic lane due to heavier loading and more traffic cycles. At the same time,the simulated rutting is larger in summer time for the high environmental temperature. The simulation results and measured rutting are compared with each other,which shares the same inclination and agrees favorably. To summarize,in order to have a favorable estimation of deck pavement rutting,the factors including the material viscoelastic properties,the environmental temperature as well as the living loading conditions should be considered simultaneously. The results indicate that the proposed method and procedures in this paper are reliable in predicting the rutting of deck pavement on steel box girder,which could be applied for predicting the rutting of deck pavement in relating comparable engineering projects.
引文
[1]刘云,于新,戴忧华,等.混凝土箱梁桥铺装防水粘结层力学性能[J].同济大学学报(自然科学版),2012,40(1):57-61.DOI:10.3969/j.issn.0253-374x.2012.01.010.LIU Y,YU X,DAI Y H,et al.Mechanical properties of waterproof adhesive layer on concrete box girder bridge[J].Journal of Tongji University(Nature Science),2012,40(1):57-61.
[2]孙立军.沥青路面结构行为学[M].上海:同济大学出版社,2013:928.SUN L J.Structural behavior of asphalt pavements[M].Shanghai:Tongji University Press,2013:928.
[3]申爱琴,王娜,李明国,等.高速公路SMA混合料高温稳定性及影响因素[J].长安大学学报(自然科学版),2006,26(1):1-7.DOI:10.3321/j.issn:1671-8879.2006.01.001.SHEN A Q,WANG N,LI M G,et al.High temperature stability and its influencing factors of SMA mixture[J].Journal of Chang'an University(Nature Science Edition),2006,26(1):1-7.
[4]郜玉兰,赵队家,韩萍,等.重载交通下山区高速公路车辙病害原因分析及对策[J].公路,2011(1):114-118.GAO Y L,ZHAO D J,HAN P,et al.The causes and countermeasures of the rutting damage of the expressway in the mountain area under heavy load traffic[J].Highway,2011(1),114-118.
[5]章登精.复合浇筑式钢桥面铺装车辙评估模型研究[J].中国工程科学,2013(8):63-69.DOI:10.3969/j.issn.1009-1742.2013.08.011.ZHANG D J.Study of steel deck pavement rutting model of composite gussasphalt concrete[J].Chinese Engineering Science,2013(8):63-69.
[6]徐世法,朱照宏.按黏弹性理论预估沥青路面车辙[J].同济大学学报,1990,18(3):299-305.XU S F,ZHU Z H.Prediction of rutting of asphalt pavement by viscoelastic theory[J].Journal of Tongji University(Natural Science),1990,18(3):299-305.
[7]彭妙娟,许志鸿.沥青路面车辙预估方法[J].同济大学学报(自然科学版),2004,32(11):50-53.DOI:10.3321/j.issn:0253-374X.2004.11.010.PENG M J,XU Z H.Methods of rutting prediction in asphalt pavements[J].Journal of Tongji University(Natural Science),2004,32(11):50-53.
[8]陈静云,丁银萍,周长红.基于料堆试验的沥青混合料离析影响因素分析[J].东南大学学报(自然科学版),2009(1):117-120.CHEN J Y,DING Y P,ZHOU C H.Analysis on influence factors forhotmix asphalt segregation using heap test[J].Journal of Southeast University(Nature Science),2009(1):117-120.
[9]蒙上阳,唐国金,雷勇军,等.Burgers模型的参数获取方法[J].固体火箭技术,2003,26(2):27-29.DOI:10.3969/j.issn.1006-2793.2003.02.008.MENG S Y,TANG G J,LEI Y J,et al.Method of obtaining the burgers model parameters[J].Journal of Solid Rocket Technology,2003,26(2):27-29.
[10]罗桑,钟科,钱振东.钢桥面复合铺装结构永久变形预估[J].同济大学学报(自然科学版),2013(3):397-401.DOI:10.3969/j.issn.0253-374x.2013.03.014.LUO S,ZHONG K,QIAN Z D.Permanent deformation prediction of steel deck pavement with different combinations[J].Journal of Tongji University(Natural Science),2013(3):397-401.
[11]胡靖,钱振东,杨宇明.GA+EA钢桥面铺装复合结构的高温性能与力学特性[J].中南大学学报(自然科学版),2015,46(5):1946-1952.DOI:10.11817/j.issn.1672-7207.2015.05.050.HU J,QIAN Z D,YANG Y M.High temperature properties of composite structure ofgussasphalt+epoxy asphalt at bridge deck pavement[J].Journal of Central South University(Science and Technoloy),2015,46(5):1946-1952.
[12]李国芬,王宏畅,王勇,等.基于修正Burgers模型的钢桥面铺装车辙有限元分析[J].林业工程学报,2016,1(5):120-125.DOI:10.13360/j.issn.2096-1359.2016.05.021.LI G F,WANG H C,WANG Y,et al.Finite element analysis of steel bridge deck pavement rut based on modified burgers model[J].Journal of Forestry Engineering,2016,1(5):120-125.
[13]吴礼贤,彭小芹.修正的Burgers模型及其对于硬化混凝土的应用[J].重庆建筑工程学院学报,1990,12(1):38-43.WU L X,PENG X Q.Modified burgers model and its application to hardened concrete[J].Journal of Chongqing Institute of Architecture and Engineering,1990,12(1):38-43.
[14]潘晓明,余俊,杨钊,等.一种将线性粘弹微分型本构方程应用到ABAQUS的方法[J].华侨大学学报(自然科学版),2010,31(5):570-575.DOI:10.11830/issn.1000-5013.2010.05.0570.PEN X M,YU J,YANG Z,et al.A method using linearviscoelastic differential constitutive equation into Abaqus[J].Journal of Huaqiao University(Natural Science),2010,31(5):570-575.
[15]黄文柯,张丽娟,张肖宁,等.沥青混合料蠕变柔量转换为松弛模量的研究[J].交通科学与工程,2015,31(3):7-12.HUANG W K,ZHANG L J,ZHANG X N,et al.Research on therelaxion modulus converted to creep compliance of asphalt mixture[J].Journal of Transport Science and Engineering,2015,31(3):7-12.
[16]吕慧杰,刘涵奇,罗蓉.基于单轴压缩蠕变试验求解沥青混合料松弛模量[J].武汉理工大学学报(交通科学与工程版),2016,40(6):1067-1072.DOI:10.3963/j.issn.2095-3844.2016.06.025.LU H J,LIU H Q,LUO R.Determination of relaxation modulus of asphalt mixtures usinguniaxial compressive creep test[J].Journal of Wuhan University of Technology(Transportation Science&Engineering),2016,40(6):1067-1072.
[17]杨挺青,罗文波,徐平.黏弹性理论与运用[M].北京:科学出版社,2004.
[18]XIE F,ZHANG D,ZHOU A,et al.On theviscoelastic parameters of gussasphalt mixture based on modified burgers model:deviation and experimental verification[J].Advances in Materials Science and Engineering,2017:1-11.DOI:10.1155/2017/4324765.
[19]周骜,谢发祥,章登精,等.基于修正Burgers模型的浇筑式沥青混合料黏弹性参数确定方法[J].林业工程学报,2017,2(3):143-149.DOI:10.13360/j.issn.2096-1359.2017.03.023.ZHOU A,XIE F X,ZHANG D J,et al.Viscoelastic parameters determination method of pouring type asphalt mixture based on modified Burgers model[J].Journal of Forestry Engineering,2017,2(3):143-149.
[20]廖公云,黄晓明.Abaqus有限元软件在道路工程中的应用[M].2版.南京:东南大学出版社,2014.LIAO G Y,HUANG X M,Application of finite element software Abaqus in road engineering[M].2nd ed.Nanjing:Southeast University Press,2014.
[2]孙立军.沥青路面结构行为学[M].上海:同济大学出版社,2013:928.SUN L J.Structural behavior of asphalt pavements[M].Shanghai:Tongji University Press,2013:928.
[3]申爱琴,王娜,李明国,等.高速公路SMA混合料高温稳定性及影响因素[J].长安大学学报(自然科学版),2006,26(1):1-7.DOI:10.3321/j.issn:1671-8879.2006.01.001.SHEN A Q,WANG N,LI M G,et al.High temperature stability and its influencing factors of SMA mixture[J].Journal of Chang'an University(Nature Science Edition),2006,26(1):1-7.
[4]郜玉兰,赵队家,韩萍,等.重载交通下山区高速公路车辙病害原因分析及对策[J].公路,2011(1):114-118.GAO Y L,ZHAO D J,HAN P,et al.The causes and countermeasures of the rutting damage of the expressway in the mountain area under heavy load traffic[J].Highway,2011(1),114-118.
[5]章登精.复合浇筑式钢桥面铺装车辙评估模型研究[J].中国工程科学,2013(8):63-69.DOI:10.3969/j.issn.1009-1742.2013.08.011.ZHANG D J.Study of steel deck pavement rutting model of composite gussasphalt concrete[J].Chinese Engineering Science,2013(8):63-69.
[6]徐世法,朱照宏.按黏弹性理论预估沥青路面车辙[J].同济大学学报,1990,18(3):299-305.XU S F,ZHU Z H.Prediction of rutting of asphalt pavement by viscoelastic theory[J].Journal of Tongji University(Natural Science),1990,18(3):299-305.
[7]彭妙娟,许志鸿.沥青路面车辙预估方法[J].同济大学学报(自然科学版),2004,32(11):50-53.DOI:10.3321/j.issn:0253-374X.2004.11.010.PENG M J,XU Z H.Methods of rutting prediction in asphalt pavements[J].Journal of Tongji University(Natural Science),2004,32(11):50-53.
[8]陈静云,丁银萍,周长红.基于料堆试验的沥青混合料离析影响因素分析[J].东南大学学报(自然科学版),2009(1):117-120.CHEN J Y,DING Y P,ZHOU C H.Analysis on influence factors forhotmix asphalt segregation using heap test[J].Journal of Southeast University(Nature Science),2009(1):117-120.
[9]蒙上阳,唐国金,雷勇军,等.Burgers模型的参数获取方法[J].固体火箭技术,2003,26(2):27-29.DOI:10.3969/j.issn.1006-2793.2003.02.008.MENG S Y,TANG G J,LEI Y J,et al.Method of obtaining the burgers model parameters[J].Journal of Solid Rocket Technology,2003,26(2):27-29.
[10]罗桑,钟科,钱振东.钢桥面复合铺装结构永久变形预估[J].同济大学学报(自然科学版),2013(3):397-401.DOI:10.3969/j.issn.0253-374x.2013.03.014.LUO S,ZHONG K,QIAN Z D.Permanent deformation prediction of steel deck pavement with different combinations[J].Journal of Tongji University(Natural Science),2013(3):397-401.
[11]胡靖,钱振东,杨宇明.GA+EA钢桥面铺装复合结构的高温性能与力学特性[J].中南大学学报(自然科学版),2015,46(5):1946-1952.DOI:10.11817/j.issn.1672-7207.2015.05.050.HU J,QIAN Z D,YANG Y M.High temperature properties of composite structure ofgussasphalt+epoxy asphalt at bridge deck pavement[J].Journal of Central South University(Science and Technoloy),2015,46(5):1946-1952.
[12]李国芬,王宏畅,王勇,等.基于修正Burgers模型的钢桥面铺装车辙有限元分析[J].林业工程学报,2016,1(5):120-125.DOI:10.13360/j.issn.2096-1359.2016.05.021.LI G F,WANG H C,WANG Y,et al.Finite element analysis of steel bridge deck pavement rut based on modified burgers model[J].Journal of Forestry Engineering,2016,1(5):120-125.
[13]吴礼贤,彭小芹.修正的Burgers模型及其对于硬化混凝土的应用[J].重庆建筑工程学院学报,1990,12(1):38-43.WU L X,PENG X Q.Modified burgers model and its application to hardened concrete[J].Journal of Chongqing Institute of Architecture and Engineering,1990,12(1):38-43.
[14]潘晓明,余俊,杨钊,等.一种将线性粘弹微分型本构方程应用到ABAQUS的方法[J].华侨大学学报(自然科学版),2010,31(5):570-575.DOI:10.11830/issn.1000-5013.2010.05.0570.PEN X M,YU J,YANG Z,et al.A method using linearviscoelastic differential constitutive equation into Abaqus[J].Journal of Huaqiao University(Natural Science),2010,31(5):570-575.
[15]黄文柯,张丽娟,张肖宁,等.沥青混合料蠕变柔量转换为松弛模量的研究[J].交通科学与工程,2015,31(3):7-12.HUANG W K,ZHANG L J,ZHANG X N,et al.Research on therelaxion modulus converted to creep compliance of asphalt mixture[J].Journal of Transport Science and Engineering,2015,31(3):7-12.
[16]吕慧杰,刘涵奇,罗蓉.基于单轴压缩蠕变试验求解沥青混合料松弛模量[J].武汉理工大学学报(交通科学与工程版),2016,40(6):1067-1072.DOI:10.3963/j.issn.2095-3844.2016.06.025.LU H J,LIU H Q,LUO R.Determination of relaxation modulus of asphalt mixtures usinguniaxial compressive creep test[J].Journal of Wuhan University of Technology(Transportation Science&Engineering),2016,40(6):1067-1072.
[17]杨挺青,罗文波,徐平.黏弹性理论与运用[M].北京:科学出版社,2004.
[18]XIE F,ZHANG D,ZHOU A,et al.On theviscoelastic parameters of gussasphalt mixture based on modified burgers model:deviation and experimental verification[J].Advances in Materials Science and Engineering,2017:1-11.DOI:10.1155/2017/4324765.
[19]周骜,谢发祥,章登精,等.基于修正Burgers模型的浇筑式沥青混合料黏弹性参数确定方法[J].林业工程学报,2017,2(3):143-149.DOI:10.13360/j.issn.2096-1359.2017.03.023.ZHOU A,XIE F X,ZHANG D J,et al.Viscoelastic parameters determination method of pouring type asphalt mixture based on modified Burgers model[J].Journal of Forestry Engineering,2017,2(3):143-149.
[20]廖公云,黄晓明.Abaqus有限元软件在道路工程中的应用[M].2版.南京:东南大学出版社,2014.LIAO G Y,HUANG X M,Application of finite element software Abaqus in road engineering[M].2nd ed.Nanjing:Southeast University Press,2014.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |