植石混凝土桥面沥青铺装层间抗剪性能研究
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摘要
为了研究植石水泥混凝土桥面板与沥青铺装层层间抗剪性能,采用传统的刻槽、毛面、光面界面类型桥面铺装试件作为对比,测试了0,0.7,1.4MPa这3个竖向荷载作用下,不同界面类型试件的层间极限抗剪强度;分析了0.7MPa竖向荷载作用下,不同界面类型试件层间剪应力与剪切位移的关系;研究了温度、水以及冻融循环作用对不同界面类型试件层间抗剪性能的影响,并进一步针对植石界面类型试件,分析了AC-13C,AC-20C与SMA-13沥青铺装层对其层间抗剪性能的影响.结果表明:与另外3种界面类型试件相比,植石界面类型试件具有较大的内摩阻角和黏聚力,其层间极限抗剪强度达到1.0MPa以上,并且残余抗剪强度达到了极限抗剪强度的80%;植石界面类型试件对环境中温度和水的敏感性较低,在冻融循环作用下其层间极限抗剪强度衰减幅度最小;沥青铺装层材料组成对植石界面类型试件的层间抗剪强度具有显著影响,AC-20C和SMA-13沥青铺装层试件的层间抗剪性能优于AC-13C沥青铺装层试件.
In order to explain the interlaminar shear properties between chip-sprinkling cement concrete(CSCC)bridge deck and asphalt pavement structure,traditional interface texture treatment methods,named grooved,rough and smooth respectively,were chosen as control groups.Interlaminar ultimate shear strengths of specimens with different interface types were tested when vertical loads were 0,0.7,1.4 MPa.Relationship between interlaminar shear stress and shear displacement was analyzed for different interface types of specimens with 0.7 MPa vertical load.Effects of temperature,water and freeze-thaw cycle on interlaminar ultimate shear strength were studied for specimens with different interface types.Besides,interlaminar shear strength was analyzed in terms of chip-sprinkling interface specimens with different asphalt pavement types of AC-13 C,AC-20 Cand SMA-13 respectively.Experimental results indicate that specimens with chip-sprinkling interface type show greater internal friction angle and cohesive force than other interface types of specimens,and interlaminar ultimate shear strength is up to 1.0 MPa,residual shear strength is up to 80% of its ultimate shear strength.Specimens with chip-sprinkling interface type exhibits low sensibility to temperature and water,and low degradation of interlaminar ultimate shear strength under freeze-thaw cycles.Asphalt pavement type has a significant influence on interlaminar ultimate shear strength,with ultimate shear strength of AC-20 Cand SMA-13 specimens greater than that of AC-13 Cspecimen.
In order to explain the interlaminar shear properties between chip-sprinkling cement concrete(CSCC)bridge deck and asphalt pavement structure,traditional interface texture treatment methods,named grooved,rough and smooth respectively,were chosen as control groups.Interlaminar ultimate shear strengths of specimens with different interface types were tested when vertical loads were 0,0.7,1.4 MPa.Relationship between interlaminar shear stress and shear displacement was analyzed for different interface types of specimens with 0.7 MPa vertical load.Effects of temperature,water and freeze-thaw cycle on interlaminar ultimate shear strength were studied for specimens with different interface types.Besides,interlaminar shear strength was analyzed in terms of chip-sprinkling interface specimens with different asphalt pavement types of AC-13 C,AC-20 Cand SMA-13 respectively.Experimental results indicate that specimens with chip-sprinkling interface type show greater internal friction angle and cohesive force than other interface types of specimens,and interlaminar ultimate shear strength is up to 1.0 MPa,residual shear strength is up to 80% of its ultimate shear strength.Specimens with chip-sprinkling interface type exhibits low sensibility to temperature and water,and low degradation of interlaminar ultimate shear strength under freeze-thaw cycles.Asphalt pavement type has a significant influence on interlaminar ultimate shear strength,with ultimate shear strength of AC-20 Cand SMA-13 specimens greater than that of AC-13 Cspecimen.
引文
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[18]任万艳,韩森,李俊,等.植石技术在混凝土桥面沥青铺装结构中的应用[J].建筑材料学报,2017,20(2):222-228.REN Wanyan,HAN Sen,LI Jun,et al.Application of chipsprinkling technique to concrete bridge asphalt pavement structure[J].Journal of Building Materials,2017,20(2):222-228.(in Chinese)
[2]CACKLER E T,HARRINGTON D S,FERRAGUT T.Evaluation of US and European concrete pavement noise reductionmethods[R].Iowa:Iowa State University,2006.
[3]HOERNER T E,SMITH K D,LARSON R M,et al.Current practice of Portland cement concrete pavement texturing[J].Transportation Research Record:Journal of the Transportation Research Board,2003(1860):178-186.
[4]韩森,张东省,李俊,等.一种植石水泥混凝土桥面铺装结构及铺装方法:10288710.3[P].2015-09-02.HAN Sen,ZHANG Dongsheng,LI Jun,et al.A kind of chipsprinkling cement concrete bridge deck pavement structure and its pavement method:10288710.3[P].2015-09-02.(in Chinese)
[5]韩森,张东省,李俊,等.一种植石水泥混凝土桥面铺装结构:20363361.2[P].2016-01-06.HAN Sen,ZHANG Dongsheng,LI Jun,et al.A kind of chipsprinkling cement concrete bridge deck pavement structure:20363361.2[P].2016-01-06.(in Chinese)
[6]李云良,纪伦,刑超,等.水泥混凝土桥面铺装力学行为数值分析[J].哈尔滨工业大学学报,2013,45(10):58-62.LI Yunliang,JI Lun,XING Chao,et al.Numerical analysis about mechanical behavior of concrete bridge deck pavement[J].Journal of Harbin Institute of Technology,2013,45(10):58-62.(in Chinese)
[7]胡世敬,王火明,陈飞.界面处治方式对CC+AC复合式路面界面层强度的影响[J].合肥工业大学学报(自然科学版),2014,37(8):966-970.HU Shijing,WANG Huoming,CHEN Fei.Influence of interface treatment mode on interface layer strength of CC+AC composite pavement[J].Journal of Hefei University of Technology(Natural Science),2014,37(8):966-970.(in Chinese)
[8]何德云,熊欣,董强.水泥混凝土桥沥青铺装典型结构研究[J].重庆交通大学学报(自然科学版),2011,30(1):27-30,73.HE Deyun,XIONG Xin,DONG Qiang.Typical structure of bridge deck pavement of cement concrete bridge[J].Journal of Chongqing Jiaotong University(Natural Science),2011,30(1):27-30,73.(in Chinese)
[9]许涛,黄晓明.桥面铺装材料设计参数对铺装层受力影响[J].公路交通科技,2007,24(9):32-36.XU Tao,HUANG Xiaoming.Effects of material design parameter on mechanical states of bridge deck pavement[J].Journal of Highway Transportation Research and Development,2007,24(9):32-36.(in Chinese)
[10]于新,李英涛,刘云.基于力学分析的桥面铺装防水粘结层材料灰靶优选[J].西南交通大学报,2012,47(6):1086-1091.YU Xin,LI Yingtao,LIU Yun.Grey target optimization of waterproof adhesive material for concrete bridge deck pavement based on mechanical analysis[J].Journal of Southwest Jiaotong University,2012,47(6):1086-1091.(in Chinese)
[11]纪小平,郑南翔,张宜洛,等.桥面沥青铺装温度场的特性及预估模型[J].长安大学学报(自然科学版),2014,34(3):60-65.JI Xiaoping,ZHENG Nanxiang,ZHANG Yiluo,et al.Prediction model and characteristics of temperature field on bridge deck asphalt pavement[J].Journal of Chang'an University(Natural Science),2014,34(3):60-65.(in Chinese)
[12]陈仕周,倪小军.桥面铺装与路面温度差异研究[J].中国公路学报,2005,18(2):56-60.CHEN Shizhou,NI Xiaojun.Study on temperature difference between bridge deck pavement and road pavement[J].China Journal of Highway and Transport,2005,18(2):56-60.(in Chinese)
[13]王乾,童申家,王选仓,等.桥面铺装温度场与温度应力分析[J].西安建筑科技大学学报(自然科学版),2009,41(2):219-224.WANG Qian,TONG Shenjia,WANG Xuancang,et al.Analysis on the temperature field and temperature stress of bridge deck pavement[J].Journal of Xi'an University of Arch&Tech(Natural Science),2009,41(2):219-224.(in Chinese)
[14]纪伦,李云良,任俊达,等.桥面铺装防水粘结层胶结材料洒布量的确定方法[J].哈尔滨工业大学学报,2014,46(4):57-62.JI Lun,LI Yunliang,REN Junda,et al.Method of determining the spraying amount of waterproof binder for bridge deck pavement[J].Journal of Harbin Institute of Technology,2014,46(4):57-62.(in Chinese)
[15]徐鸥明,韩森,于静涛.露石混凝土改善桥面铺装结构稳定性研究[J].武汉理工大学学报,2010,32(1):22-24,69.XU Ouming,HAN Sen,YU Jingtao.Research on improvement of structural stability for concrete bridge deck pavement[J].Journal of Wuhan University of Technology,2010,32(1):22-24,69.(in Chinese)
[16]徐鸥明,常海洲,韩森,等.露石技术在桥面铺装结构中的应用研究[J].公路,2009(10):96-100.XU Ouming,CHANG Haizhou,HAN Sen,et al.Study on exposed-aggregate technique applied to concrete bridge pavement structure[J].Journal of Highway,2009(10):96-100.(in Chinese)
[17]罗敏.露石混凝土桥面板应用及层间抗剪性能研究[D].西安:长安大学,2009.LUO Min.Research on exposed-concrete bridge deck applications and shear resistance capacity between layers[D].Xi'an:Chang'an University,2009.(in Chinese)
[18]任万艳,韩森,李俊,等.植石技术在混凝土桥面沥青铺装结构中的应用[J].建筑材料学报,2017,20(2):222-228.REN Wanyan,HAN Sen,LI Jun,et al.Application of chipsprinkling technique to concrete bridge asphalt pavement structure[J].Journal of Building Materials,2017,20(2):222-228.(in Chinese)