| 旧水泥混凝土路面沥青加铺层力学分析 |
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| 引用本文： | 曹东伟,胡长顺. 旧水泥混凝土路面沥青加铺层力学分析[J]. 长安大学学报(自然科学版), 2001, 21(1): 1-5 |
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| 作者姓名： | 曹东伟 胡长顺 |
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| 作者单位： | 长安大学 公路工程学院, |
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| 摘 要： | 车辆荷载作用所引起的剪切破坏是旧混凝土路面上沥青加铺层(AC)结构产生反射裂缝的主要原因之一，采用有限元法对旧混凝土路面上AC层进行了力学分析，重点考察了车辆荷载作用下接缝处AC层的剪应力与弯沉差，分析了临界荷位及计算参数的影响规律，并给出了可用于生产设计的回归公式。
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| 关 键 词： | 水泥混凝土路面；沥青加铺层；有限元法；剪应力；弯沉差 |
| 文章编号： | 1007-4112(2001)01-0001-05 |
| 修稿时间： | 1999-10-06 |
Mechanics Analysis ofAsphalt Concrete Overlay on the Existing Cement Concrete Pavement |
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| CHAO Dong-wei,HU Chang-shun. Mechanics Analysis ofAsphalt Concrete Overlay on the Existing Cement Concrete Pavement[J]. JOurnal of Chang’an University:Natural Science Edition, 2001, 21(1): 1-5 |
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| Authors: | CHAO Dong-wei HU Chang-shun |
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| Abstract: | Reflection cracking resulted from shearing stress induced by veh icle loads is one of the conventional damage in asphalt concrete (AC) overlay on the existing cement concrete pavement. The finite element method is utilized to ana lyze the mechanics states of the AC overlay on the concrete pavement, which is e mphasized on the shearing stress and the deflection difference at the joints bet ween two slab edges induced by vehicle loads. On the base of great deal computat ion, the critical loading position is presented and the variation tendency influ enced by some parameters on AC stresses is analyzed. The theoretical value is al so provided for application of the design method of AC overlay on the existing c ement concrete pavement. |
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