| 行车速度对沥青路面力学参数及响应的影响 |
| |
| 引用本文： | 赵延庆,于新,谭忆秋.行车速度对沥青路面力学参数及响应的影响[J].北京工业大学学报,2010,36(9). |
| |
| 作者姓名： | 赵延庆 于新 谭忆秋 |
| |
| 作者单位： | 大连理工大学,交通运输学院,大连,116024;河海大学,土木与交通学院,南京,210098;哈尔滨工业大学,交通科学与工程学院,哈尔滨,150001 |
| |
| 基金项目： | 国家自然科学基金资助项目(50778057); 交通部西部交通科技建设项目(200831800099) |
| |
| 摘 要： | 利用室内试验确定的沥青混合料的动态模量主曲线和时间-温度转化因子,结合实测的冬天和夏天沥青路面结构的典型温度场,定量分析了行车速度对沥青路面材料性能及结构力学响应的影响.结果表明,当行车速度从10 km/h增加到130 km/h时,路面结构内动态模量可增加3倍以上,路表弯沉、沥青层底拉应变和土基顶面压应变等关键力学响应可减少20%以上.在冬天和夏天,材料性质及路面响应随车速的变化幅度有所不同.研究表明,为了得到更客观的结果,在路面结构分析和设计中应考虑行车速度的影响.
|
| 关 键 词： | 行车速度 荷载频率 动态模量 路面响应 |
Effects of Vehicle Speed on Mechanical Properties of Asphalt Mixtures and Pavement Responses |
| |
| ZHAO Yan-qing,YU Xin,TAN Yi-qiu.Effects of Vehicle Speed on Mechanical Properties of Asphalt Mixtures and Pavement Responses[J].Journal of Beijing Polytechnic University,2010,36(9). |
| |
| Authors: | ZHAO Yan-qing YU Xin TAN Yi-qiu |
| |
| Affiliation: | ZHAO Yan-qing1,YU Xin2,TAN Yi-qiu3(1.School of Transportation Engineering,Dalian University of Technology,Dalian 116024,China,2.College of Civil , Transportation Engineering,Hohai University,Nanjing 210098,3.School of Transportation Science & Engineering,Harbin Institute of Technology,Harbin 150001,China) |
| |
| Abstract: | Effects of vehicle speed on material properties of asphalt pavement and structure responses are analyzed quantitatively using dynamic modulus master curves and time-temperature shift factors of asphalt mixtures are obtained from laboratory tests,along with pavement temperature data measured in the field.The results indicate that when vehicle speed increases from 10 km/h to 130 km/h,dynamic modulus in the pavement could increase by 12 times,and critical pavement responses such as surface deflection,tension s... |
| |
| Keywords: | vehicle speed loading frequency dynamic modulus pavement response |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
