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首页> 外文会议>Fourth European Symposium on Performance of Bituminous and Hydraulic Materials in Pavements, Apr 11-12, 2002, Nottingham, United Kingdom >Stress analysis of longitudinal cracking in the wheel paths of bituminous pavements at high temperature
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Stress analysis of longitudinal cracking in the wheel paths of bituminous pavements at high temperature

机译：高温沥青路面轮径纵向裂缝的应力分析

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摘要

The phenomenon of longitudinal cracking in bituminous pavements in the wheel paths was analyzed in this investigation. An FWD investigation of cracked road sections on the Japan Express Highway was followed up by direct tensile testing of bituminous specimens obtained from both cracked and non-cracked road sections. The experimental investigation included measurements of horizontal shearing strains on a brass plate caused by loading three types of truck tires up to 30 kN. The tire types investigated were; Summer radial tire (Bridgestone), Normal tire (Bridgestone) and a Studdless tire (Yokohama). Shear stress analysis at the surface of a bituminous pavement under dynamic wheel loading (60km/h) with horizontal shearing stress were also investigated using a hybrid visco-elastic FEM. It was found that the maximum horizontal shearing stress in the wheel path on a bituminous pavement during the summer season occurred near the center of a radial tire which resulted in longitudinal cracking in the wheel path.
机译：在这项研究中，分析了车轮路径中沥青路面的纵向裂缝现象。在日本高速公路上对裂开的路段进行的FWD调查之后，对从裂开和未裂开的路段获得的沥青标本进行直接拉伸测试。实验研究包括测量在黄铜板上的水平剪切应变，该水平剪切应变是由加载高达30 kN的三种类型的卡车轮胎引起的。调查的轮胎类型为：夏季子午胎（普利司通），普通轮胎（普利司通）和无钉轮胎（横滨）。还使用混合粘弹性有限元方法研究了在动态车轮载荷（60 km / h）下水平剪切应力作用下的沥青路面表面的剪应力分析。发现在夏季沥青路面上的轮径中的最大水平剪切应力发生在子午线轮胎的中心附近，这导致了轮径的纵向裂纹。

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