| 时间: 2021-01-10 | 次数: |
闫科伟, 史小特, 朱月风,等.基于DCT试验和AHP的沥青混合料抗裂性能综合评价[J].河南理工大学学报（自然科学版）,2021,40(1):169-176.
YAN K W, SHI X T, ZHU Y F, et al.Comprehensive evaluation of anti-cracking performance for asphalt mixture based on DCT test and AHP method[J].Journal of Henan Polytechnic University(Natural Science) ,2021,40(1):169-176.
基于DCT试验和AHP的沥青混合料抗裂性能综合评价
闫科伟1,2, 史小特3, 朱月风1,4, 司春棣1,4
1.省部共建交通工程结构力学行为与系统安全国家重点实验室，河北 石家庄 050043;2.山西水利职业技术学院 道路与桥梁工程系，山西 运城 044000;3.石家庄铁路职业学院 轨道交通系，河北 石家庄 050043;4.石家庄铁道大学 交通运输学院，河北 石家庄 050043
摘要:为弥补断裂能在评价沥青混合料低温抗裂性能时的不足，总结目前基于DCT试验的沥青混合料抗裂性能指标，即断裂能、韧性指数、断裂强度指数、断裂应变容限值和柔性指数，应用层次分析法（AHP）对这5种评价指标进行综合分析，得出不同指标的权重，应用加权平均方法确定沥青混合料的抗裂性能。研究表明：分别赋予断裂能、韧性指数、断裂强度指数、断裂 应变容限值和柔性指数0.232，0.040，0.145 ，0.491，0.092的权重系数，得到沥青混合料抗裂性能综合评价指标；综合评价指标越大，沥青混合料的抗裂性能越好；采用AHP计算的综合评价指标相对于单一指标方法更为合理，有更好的适用性和可靠度。
关键词:DCT试验;沥青混合料;层次分析法;抗裂性能;可靠度分析
doi:10.16186/j.cnki.1673-9787.2019100029
基金项目:国家自然科学基金资助项目（11972237）；河北省高等学校科学技术研究项目（QN2019234 ）；河北省引进留学回国人员重 点资助项目（C20190513 ）
收稿日期:2019/10/11
修回日期:2019/12/19
出版日期:2021/01/15
Comprehensive evaluation of anti-cracking performance for asphalt mixture based on DCT test and AHP method
YAN Kewei1,2, SHI Xiaote3, ZHU Yuefeng1,4, SI Chundi1,4
1.State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures,Shijiazhuang 050043,Hebei， China;2.Road and Bridge Engineering Department， Shanxi Conservancy Technical Institute， Yuncheng 044000,Shanxi， China;3.Department of Rail Transit， Shij~i- azhuang Institute ofRailway Technology， Shijiazhuang 050043,Hebei， China;4.School of Traffic and Transportation， Shijiazhuang Tiedao University， Shijiazhuang 050043 ，Hebei， China
Abstract:Due to the disadvantage of fracture energy in evaluating low temperature fracture test of asphalt mixture ，some fracture indices were summarized for further evaluation.Analytic hierarchy process (AHP) method was applied to analyze five fracture indices,including fracture energy,toughness index,fracture strength,fracture strain tolerance and flexibility index.The comprehensive index for accessing the crack resistance of asphalt mixture was calculated by weighted average summation.The results showed that the weights of fracture energy， toughness index ，fracture strength， fracture strain tolerance and flexibility index were 0.232，0.046，0.145,0.491 ，0.092 respectively.The comprehensive index of asphalt mixture anti-cracking performance was obtained.The larger the comprehensive index was， the better the anti-cracking performance of asphalt mixture was.The practical analysis showed that the comprehensive index calculated by analytic hierarchy process was more reasonable than the single index method， and had better applicability and reliability.
Key words:DCT test;asphalt mixture;analytic hierarchy process;anti-cracking performance;reliability analysis
