桥面铺装调平层与沥青面层层间剪切行为
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摘要
为了改善桥面铺装层间结构病害多发的问题,采用ANSYS软件对调平层与沥青层层间结构的受力进行分析.提出层间极限剪切边界的概念,开展重要影响因素的敏感性分析,与组合结构抗剪强度变化方程建立联系.结果表明:水平力系数而非竖向荷载是层间极限剪切边界的关键影响因素;沥青上、下面层厚度对铺装结构层间剪切状态具有相似的改善效果;调平层厚度对桥面铺装层间剪切状态的影响较小;铣刨措施组合结构抗剪强度回归方程的斜率大于典型铺装结构下极限边界方程的斜率,可以保证调平层与沥青层处于剪切安全状态.层间极限剪切边界可以将铺装结构力学分析与室内试验建立直接联系,为桥面铺装层间结构设计提供参考.
The concept of interlayer shearing limited boundary was proposed based on the stress characteristics of the interlayer structure calculated by ANSYS in order to improve the problem of interlayer structure diseases of bridge deck pavement.The sensitivity analysis of important influencing factors was conducted,and the relationship between shear strength and interlayer shearing limited boundary was established.Results show that the transverse force coefficient is the key factor of interlayer shearing limited boundary.Increasing the upper asphalt layer or the lower layer thickness can both reduce the occurrence probability of shear failure.The effect of concrete leveling layer thickness on the shear state of bridge deck pavement is very small.The milling interlayer treatment measure can ensure the shear state safety of bridge deck pavement under the typical pavement structure.The interlayer shearing limited boundary can establish a relationship between the mechanical analysis and laboratory test,which can provide reference for the design of interlayer structure of bridge deck pavement.
The concept of interlayer shearing limited boundary was proposed based on the stress characteristics of the interlayer structure calculated by ANSYS in order to improve the problem of interlayer structure diseases of bridge deck pavement.The sensitivity analysis of important influencing factors was conducted,and the relationship between shear strength and interlayer shearing limited boundary was established.Results show that the transverse force coefficient is the key factor of interlayer shearing limited boundary.Increasing the upper asphalt layer or the lower layer thickness can both reduce the occurrence probability of shear failure.The effect of concrete leveling layer thickness on the shear state of bridge deck pavement is very small.The milling interlayer treatment measure can ensure the shear state safety of bridge deck pavement under the typical pavement structure.The interlayer shearing limited boundary can establish a relationship between the mechanical analysis and laboratory test,which can provide reference for the design of interlayer structure of bridge deck pavement.
引文
[1]黄晓明.水泥混凝土桥面沥青铺装层技术研究现状综述[J].交通运输工程学报,2014,14(1):1-10.HUANG Xiao-ming.Research status summary of asphalt pavement technology on cement concrete bridge deck[J].Journal of Traffic and Transportation Engineering,2014,14(1):1-10.
[2]王岗,谢旭,王城泉,等.简支梁桥拱型桥面连续构造的受力性能[J].浙江大学学报:工学版,2014,48(6):1049-1057.WANG Gang,XIE Xu,WANG Cheng-quan,et al.Mechanical performance of arch-type continuous slab-deck on simply-supported girder bridge[J].Journal of Zhejiang University:Engineering Science,2014,48(6):1049-1057.
[3]万晨光,申爱琴,郭寅川,等.桥面铺装混凝土调平层与沥青面层接触状态研究[J].建筑材料学报,2016,19(2):262-267.WAN Chen-guang,SHEN Ai-qin,GUO Yin-chuan,et al.Interlayer contact state between concrete leveling course and asphalt surface on bridge deck pavement[J].Journal of Building Materials,2016,19(2):262-267.
[4]CASTRO M.Structural design of asphalt pavement on concrete bridges[J].Canadian Journal of Civil Engineering,2004,31(4):695-702.
[5]CHUN S,KIM K,GREENE J,et al.Evaluation of interlayer bonding condition on structural response characteristics of asphalt pavement using finite element analysis and full-scale field tests[J].Construction and Building Materials,2015,96:307-318.
[6]MOSES O O.Performance evaluation of stress absorbing membrane interlayers considering,debonding effects[J].Journal of Civil Engineering and Science,2014,3(1):25-34.
[7]贾锦绣.沥青路面与桥面铺装抗剪特性研究[D].西安:长安大学,2011.JIA Jin-xiu.Research on shearing resistance of asphalt pavement and bridge deck pavement[D].Xi’an:Chang’an University,2011.
[8]LIU Y,QIAN Z D.Dynamic analysis of pavement on long span steel bridge decks[J].Journal of Southeast University(English Edition),2008,24(2):212-215.
[9]贾晓阳,李立寒.混凝土桥面沥青铺装黏结层抗剪设计方法[J].同济大学学报:自然科学版,2013,41(3):402-407.JIA Xiao-yang,LI Li-han.A design guide to shear resistance of bonding layer in concrete bridge deck asphalt pavement[J].Journal of Tongji University:Natural Science,2013,41(3):402-407.
[10]刘黎萍,胡晓,孙立军,等.基于抗剪性能的混凝土桥沥青铺装设计方法[J].同济大学学报:自然科学版,2013,41(1):89-94.LIU Li-ping,HU Xiao,SUN Li-jun,et al.Design approach of shear properties-based asphalt pavement structure of concrete bridges[J].Journal of Tongji University:Natural Science,2013,41(1):89-94.
[11]邓学钧,黄晓明.路面设计原理与方法[M].北京:人民交通出版社,2007:29-30.
[12]万晨光.基于重载交通的连续刚构桥桥面铺装结构优化研究[R].西安:长安大学,2016:79-86.WAN Chen-guang.Optimization of bridge deck pavement structure of continuous rigid frame bridge deck based on heavy traffic[R].Xi’an:Chang’an University,2016:79-86.
[13]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 Yun-liang,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.
[2]王岗,谢旭,王城泉,等.简支梁桥拱型桥面连续构造的受力性能[J].浙江大学学报:工学版,2014,48(6):1049-1057.WANG Gang,XIE Xu,WANG Cheng-quan,et al.Mechanical performance of arch-type continuous slab-deck on simply-supported girder bridge[J].Journal of Zhejiang University:Engineering Science,2014,48(6):1049-1057.
[3]万晨光,申爱琴,郭寅川,等.桥面铺装混凝土调平层与沥青面层接触状态研究[J].建筑材料学报,2016,19(2):262-267.WAN Chen-guang,SHEN Ai-qin,GUO Yin-chuan,et al.Interlayer contact state between concrete leveling course and asphalt surface on bridge deck pavement[J].Journal of Building Materials,2016,19(2):262-267.
[4]CASTRO M.Structural design of asphalt pavement on concrete bridges[J].Canadian Journal of Civil Engineering,2004,31(4):695-702.
[5]CHUN S,KIM K,GREENE J,et al.Evaluation of interlayer bonding condition on structural response characteristics of asphalt pavement using finite element analysis and full-scale field tests[J].Construction and Building Materials,2015,96:307-318.
[6]MOSES O O.Performance evaluation of stress absorbing membrane interlayers considering,debonding effects[J].Journal of Civil Engineering and Science,2014,3(1):25-34.
[7]贾锦绣.沥青路面与桥面铺装抗剪特性研究[D].西安:长安大学,2011.JIA Jin-xiu.Research on shearing resistance of asphalt pavement and bridge deck pavement[D].Xi’an:Chang’an University,2011.
[8]LIU Y,QIAN Z D.Dynamic analysis of pavement on long span steel bridge decks[J].Journal of Southeast University(English Edition),2008,24(2):212-215.
[9]贾晓阳,李立寒.混凝土桥面沥青铺装黏结层抗剪设计方法[J].同济大学学报:自然科学版,2013,41(3):402-407.JIA Xiao-yang,LI Li-han.A design guide to shear resistance of bonding layer in concrete bridge deck asphalt pavement[J].Journal of Tongji University:Natural Science,2013,41(3):402-407.
[10]刘黎萍,胡晓,孙立军,等.基于抗剪性能的混凝土桥沥青铺装设计方法[J].同济大学学报:自然科学版,2013,41(1):89-94.LIU Li-ping,HU Xiao,SUN Li-jun,et al.Design approach of shear properties-based asphalt pavement structure of concrete bridges[J].Journal of Tongji University:Natural Science,2013,41(1):89-94.
[11]邓学钧,黄晓明.路面设计原理与方法[M].北京:人民交通出版社,2007:29-30.
[12]万晨光.基于重载交通的连续刚构桥桥面铺装结构优化研究[R].西安:长安大学,2016:79-86.WAN Chen-guang.Optimization of bridge deck pavement structure of continuous rigid frame bridge deck based on heavy traffic[R].Xi’an:Chang’an University,2016:79-86.
[13]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 Yun-liang,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.