声振法检测水泥混凝土路面板角隅脱空试验与数值仿真分析
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摘要
目的研究声振法检测水泥混凝土路面板角隅脱空动力响应.方法针对水泥混凝土路面板角隅脱空,采用试验和数值仿真结合的方法,通过利用传感器采集和分析室内试验中水泥混凝土路面板的应变和加速度.同时结合试验情况建立水泥混凝土路面板角隅脱空有限元模型,对路面板进行数值仿真分析,并与试验解进行对比.结果随着水泥混凝土路面板角隅脱空面积的增大,路面板最大振幅对应的频率降低了23%,振动时间提高了63%以上,板的振动加速度和应变提高了1倍以上,其中板底应变大于板顶应变,且不同落锤高度也对试验结果有一定影响.结论角隅脱空水泥混凝土路面板的最大加速度、应变和振动时间明显大于非脱空水泥混凝土路面板,而最大振幅对应的频率小于非脱空路面板;角隅脱空试验解与数值解对比表明数值解是可行的,二者互相验证.
In order to study sound vibration method to detect the dynamic response of cement concrete pavement. Aiming at the corner void of the cement concrete pavement,the method of combining experiment and numerical simulation was used,the strain and acceleration of cement concrete pavement were collected and analyzed by using sensors in the laboratory experiment,at the same time,the finite element model of cement concrete pavement was established based on the test case,the numerical simulation of the road panel was analyzed,and compared with the experimental solution. The results showthat with the area of cement concrete pavement of corner void increasing,the corresponding frequency of the maximum amplitude of pavement plate decreases 23%,the vibration time gradually improves more than 63%,the vibration acceleration and strain of the plate gradually improve more than 1 times,the bottom strain of plate is greater than the top strain of plate,and the heights of different drop hammer also have some effect on the test results. The maximum acceleration,strain and vibration time of the cement concrete pavement plate are significantly higher than no void cement concrete pavement,and the frequency of the maximum amplitude corresponding is less than no void cement concrete pavement. The comparison of the test solution and the numerical solution showthat the numerical solutions are feasible,the two verify each other.
In order to study sound vibration method to detect the dynamic response of cement concrete pavement. Aiming at the corner void of the cement concrete pavement,the method of combining experiment and numerical simulation was used,the strain and acceleration of cement concrete pavement were collected and analyzed by using sensors in the laboratory experiment,at the same time,the finite element model of cement concrete pavement was established based on the test case,the numerical simulation of the road panel was analyzed,and compared with the experimental solution. The results showthat with the area of cement concrete pavement of corner void increasing,the corresponding frequency of the maximum amplitude of pavement plate decreases 23%,the vibration time gradually improves more than 63%,the vibration acceleration and strain of the plate gradually improve more than 1 times,the bottom strain of plate is greater than the top strain of plate,and the heights of different drop hammer also have some effect on the test results. The maximum acceleration,strain and vibration time of the cement concrete pavement plate are significantly higher than no void cement concrete pavement,and the frequency of the maximum amplitude corresponding is less than no void cement concrete pavement. The comparison of the test solution and the numerical solution showthat the numerical solutions are feasible,the two verify each other.
引文
[1]高顺平.水泥混凝土路面板底脱空工作状况分析及脱空评定技术研究[D].昆明:昆明理工大学,2014.(GAO Shunping.Void beneath slab of cement concrete pavement w orking condition analysis and pavement evaluation method research[D].Kunming:Kunming University of Science&Technology,2014.)
[2]吕韬,梁莉,刘祥友,等.层间接触状况对水泥混凝土路面的影响[J].地下空间与工程学报,2011,7(3):547-551.(LüTao,LIANG Li,LIU Xiangyou,et al.Influence of interface contact condition on concrete pavement response[J].Chinese journal of underground space and engineering,2011,7(3):547-551.)
[3]岳宏亮,张春会,赵全胜,等.考虑层间粘结的水泥路面荷载应力数值模拟[J].河北科技大学学报,2013,34(3):253-257.(YUE Hongliang,ZHANG Chunhui,ZHAO Quansheng,et al.Numerical modeling of loading stress of concrete pavement w ith interlayer bonding[J].Journal of Hebei university of science and technology,2013,34(3):253-257.)
[4]SARKAR S,MAHADEVAN S,MEEUSSEN JCL,et al.Numerical simulation of cementi-tious materials degradation under external sulfate attack[J].Cement and concrete composites,2010,32(3):241-252.
[5]WADKAR A,CLEARY D,GUO E.Loadtransfer efficiencies of rigid airfield pavement joints based on stresses and deflections[J].Journal of materials in civil engineering,2011,23(8):1171-1179.
[6]AMEEN M,RAGHU B K.Modeling of concrete cracking-A hybrid technique of using displacement discontinuity element method and direct boundary element method[J].Engineering fracture mechanics,2012,35(9):1054-1059.
[7]OOI E T,SONG C,LOI F T,et al.Automatic modeling of cohesive crack propagation in concrete using polygon scaled boundary finite elements[J].Engineering fracture mechanics,2012,93(10):13-33.
[8]周玉民,谈至明.水泥混凝土路面角隅应力分析[J].工程力学,2010,3(27):106-110.(ZHOU Yumin,TAN Zhiming.Analysis of near-corner stresses in concrete pavement structure[J].Engineering mechanics,2012,93(10):13-33.)
[9]RUFINO D,ROESLER J.Effect of slab-base interaction on measured concrete pavement responses[J].Journal of transportation engineering,2006,132(5):425-434.
[10]GRAEFF A G,PILAKOUTAS K,NEOCLEOUS K,et al.Fatigue resistance and cracking mechanism of concrete pavements reinforced w ith recycled steel fibers recovered from post consumer tyres[J].Engineering structurcs,2012,45(12):385-395.
[11]ZHENG Wenzhong,OUYANG Zhiwei.Influence of key factors on deflection of bonded prestressed concrete simply supported slabs subjected to fire[J].Journal of Harbin institute of technology,2010,17(5):615-621.
[12]XUE Yanqing,HUANG Xiaoming.Fatigue reliability quantitative analysis of cement concrete for highw ay pavement under high stress ratio[J].Journal of southeast university(english edition),2012,28(1):94-99.
[13]刘湘龙,姚佳良.地震波法检测混凝土路面板脱空的试验研究[J].公路,2016,2(2):28-34.(LIU Xianglong,YAO Jialiang.Test and study of detecting void beneath cement concrete pavement by seismic w ave method[J].Highw ay,2016,2(2):28-34.)
[14]刘卫东,王大鹏,彭鹏.声振法判定水泥混凝土路面脱空的试验研究[J].黑龙江工程学院学报(自然科学版),2011,25(3):29-34.(LIU Weidong,WANG Dapeng,PENG Peng.An experimental research on acoustic-vibration testing in cement concrete pavement[J].Journal of Heilongjiang institute of technology(natural science),2011,25(3):29-34.)
[15]黄勇,袁捷,谭悦,等.机场水泥混凝土道面脱空判定及影响[J].同济大学学报(自然科学版),2012,40(6):861-866.(HUANG Yong,YUAN Jie,TAN Yue,et al.Identification of void beneath airport cement concrete pavement and its influence[J].Journal of tongji university(natural science),2012,40(6):861-866.)
[16]薛彦卿,黄晓明,石小武,等.含脱空水泥混凝土路面交通荷载下的疲劳损伤机理[J].东南大学学报(自然科学版),2014,44(1):199-204.(XUE Yanqing,HUANG Xiaoming,SHI Xiaow u,et al.Fatigue damage mechanism of cement concrete pavement w ith void under traffic load[J].Journal of southeast university(natural science edition),2014,44(1):199-204.)
[17]李晶晶,张擎,陈忠达.水泥路面改性环氧磨耗层骨料形状特征分析与评价[J].沈阳建筑大学学报(自然科学版),2017,33(6):1055-1064.(LI Jingjing,ZHANG Qing,CHEN Zhongda.Aggregate shape analysis and evaluation of modified epoxy w ear layer for cement pavement[J].Journal of Shenyang jianzhu university(natural science),2017,33(6):1055-1064.)
[18]中交公路规划设计院.公路水泥混凝土路面设计规范:JTGD40—2011[S].北京:人民交通出版社,2011.(CCCC Highway Consultants.Specifications of cement concrete pavement design for highw ay:JTGD40—2011[S].Beijing:People's Transportation Press,2011.)
[2]吕韬,梁莉,刘祥友,等.层间接触状况对水泥混凝土路面的影响[J].地下空间与工程学报,2011,7(3):547-551.(LüTao,LIANG Li,LIU Xiangyou,et al.Influence of interface contact condition on concrete pavement response[J].Chinese journal of underground space and engineering,2011,7(3):547-551.)
[3]岳宏亮,张春会,赵全胜,等.考虑层间粘结的水泥路面荷载应力数值模拟[J].河北科技大学学报,2013,34(3):253-257.(YUE Hongliang,ZHANG Chunhui,ZHAO Quansheng,et al.Numerical modeling of loading stress of concrete pavement w ith interlayer bonding[J].Journal of Hebei university of science and technology,2013,34(3):253-257.)
[4]SARKAR S,MAHADEVAN S,MEEUSSEN JCL,et al.Numerical simulation of cementi-tious materials degradation under external sulfate attack[J].Cement and concrete composites,2010,32(3):241-252.
[5]WADKAR A,CLEARY D,GUO E.Loadtransfer efficiencies of rigid airfield pavement joints based on stresses and deflections[J].Journal of materials in civil engineering,2011,23(8):1171-1179.
[6]AMEEN M,RAGHU B K.Modeling of concrete cracking-A hybrid technique of using displacement discontinuity element method and direct boundary element method[J].Engineering fracture mechanics,2012,35(9):1054-1059.
[7]OOI E T,SONG C,LOI F T,et al.Automatic modeling of cohesive crack propagation in concrete using polygon scaled boundary finite elements[J].Engineering fracture mechanics,2012,93(10):13-33.
[8]周玉民,谈至明.水泥混凝土路面角隅应力分析[J].工程力学,2010,3(27):106-110.(ZHOU Yumin,TAN Zhiming.Analysis of near-corner stresses in concrete pavement structure[J].Engineering mechanics,2012,93(10):13-33.)
[9]RUFINO D,ROESLER J.Effect of slab-base interaction on measured concrete pavement responses[J].Journal of transportation engineering,2006,132(5):425-434.
[10]GRAEFF A G,PILAKOUTAS K,NEOCLEOUS K,et al.Fatigue resistance and cracking mechanism of concrete pavements reinforced w ith recycled steel fibers recovered from post consumer tyres[J].Engineering structurcs,2012,45(12):385-395.
[11]ZHENG Wenzhong,OUYANG Zhiwei.Influence of key factors on deflection of bonded prestressed concrete simply supported slabs subjected to fire[J].Journal of Harbin institute of technology,2010,17(5):615-621.
[12]XUE Yanqing,HUANG Xiaoming.Fatigue reliability quantitative analysis of cement concrete for highw ay pavement under high stress ratio[J].Journal of southeast university(english edition),2012,28(1):94-99.
[13]刘湘龙,姚佳良.地震波法检测混凝土路面板脱空的试验研究[J].公路,2016,2(2):28-34.(LIU Xianglong,YAO Jialiang.Test and study of detecting void beneath cement concrete pavement by seismic w ave method[J].Highw ay,2016,2(2):28-34.)
[14]刘卫东,王大鹏,彭鹏.声振法判定水泥混凝土路面脱空的试验研究[J].黑龙江工程学院学报(自然科学版),2011,25(3):29-34.(LIU Weidong,WANG Dapeng,PENG Peng.An experimental research on acoustic-vibration testing in cement concrete pavement[J].Journal of Heilongjiang institute of technology(natural science),2011,25(3):29-34.)
[15]黄勇,袁捷,谭悦,等.机场水泥混凝土道面脱空判定及影响[J].同济大学学报(自然科学版),2012,40(6):861-866.(HUANG Yong,YUAN Jie,TAN Yue,et al.Identification of void beneath airport cement concrete pavement and its influence[J].Journal of tongji university(natural science),2012,40(6):861-866.)
[16]薛彦卿,黄晓明,石小武,等.含脱空水泥混凝土路面交通荷载下的疲劳损伤机理[J].东南大学学报(自然科学版),2014,44(1):199-204.(XUE Yanqing,HUANG Xiaoming,SHI Xiaow u,et al.Fatigue damage mechanism of cement concrete pavement w ith void under traffic load[J].Journal of southeast university(natural science edition),2014,44(1):199-204.)
[17]李晶晶,张擎,陈忠达.水泥路面改性环氧磨耗层骨料形状特征分析与评价[J].沈阳建筑大学学报(自然科学版),2017,33(6):1055-1064.(LI Jingjing,ZHANG Qing,CHEN Zhongda.Aggregate shape analysis and evaluation of modified epoxy w ear layer for cement pavement[J].Journal of Shenyang jianzhu university(natural science),2017,33(6):1055-1064.)
[18]中交公路规划设计院.公路水泥混凝土路面设计规范:JTGD40—2011[S].北京:人民交通出版社,2011.(CCCC Highway Consultants.Specifications of cement concrete pavement design for highw ay:JTGD40—2011[S].Beijing:People's Transportation Press,2011.)