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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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沥青路面Top-Down开裂成因的有限元分析
, PP. 1-4
Keywords: 沥青路面,Top-Down开裂,三维有限元,拉应力,剪应力
Abstract:
源于路表面的轮迹带附近的纵向开裂(Top-Down开裂)是重交通沥青路面的主要损坏类型之一,也是国际沥青路面工程界对道路损坏研究的新热点。为此在实测轮胎接地压力的基础上,建立了路面结构的三维有限元模型,计算出4条实际道路的最大拉、剪应力值及其位置,绘制了它们的等值线图。对最大拉、剪应力位置与开裂现象,最大应力值与应力强度进行了比较和分析。分析结果表明,轮载下强大的剪应力是造成Top-Down开裂的主要原因。
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