沥青路面结构的最大剪应力.pdfVIP

第30 卷 第6 期 长安大学学报( 自然科学版) Vol. 30 No. 6 2010 年11 月 Jou nal of Changan Unive sity( Natu al Science Edit ion) Nov. 20 10 : 2010) 1, 3 1, 2 1, 2 陈 宝 , 吴德军 , 刘 崭 ( 1. , 7 10064 ; 2. , 7 10054; 3. , 450052) : 为了减缓重载高胎压和高 度等重交通条件所引起轮载下强大的剪应力, 解决渠化交通 下沥青混凝土路面的车辙问题, 分析了路面实际剪应力力学, 采用有限元方法建立模型, 对沥青混 合料抗剪切强度进行计算, 对不同温度不同层间接触情况和不同荷载情况下半刚性基层沥青混凝 土面层内最大剪应力进行了分析, 得出了不同温度不同荷载条件下最大剪切应力的大小和位置 结果表明: 当路面结构中层间接触条件为完全连续状态较小水平荷载和垂直荷载较低的温度条 件下, 沥青路面结构不易遭受剪切破坏 : 道路工程; 沥青路面; 最大剪应力; 抗剪指标; 有限元 : U 414. 1 : A Maximum shearing stress of asphalt pavement structure 1, 3 1, 2 1, 2 CH EN Bo , WU Dejun , LIU Z han ( 1. Key Labo ato y fo Special A ea H ig hway Eng inee ing of M inist y of Educat ion, Changan U niv e sity , Xi an 7 10064, Shaanx i, China; 2. Xian H ighw ay Resea ch Inst itute, Xian 710054 , Shaanx i, China; 3. H enan P ov ince A dminist at ion of H ig hway , Zheng zho u 450052, Henan, China) Abstract: In o de to slow dow n the f o midable shea ing st ess w hich is caused by t he heavy t af f ic condit ions w ith heav y load, heavy t i e p essu e and high velocity , t o so lve especially the w heel ut p oblems of asphalt conc et e pavement unde t he channel t aff ic, t his pape analyzed t he max im um shea ing st ess in t he unit and asphalt co nc et e pav em ent w ith sem i igid base unde diff e ent t em pe atu es, and the diff e ent loads . A finit e elem ent mo dal is est ablished t o analysis max i m um shea st ess in asphalt conc et e pavement on the semi igid pavem ent unde diff e e