桥面沥青铺装粘结层拉、剪应力分析

The Analysis on Shearing Strength of Bridge Floor Asphalt Mat Formation

水泥混凝土桥沥青铺装层的破坏主要与荷载作用下产生的应力集中有关,为准确分析桥梁各部应力集中的分布特性和变化规律,文章以线弹性分析理论为基础,采用通用大型有限元分析软件ANSYS,对不同荷载条件下的铺装体系内部拉应力和剪应力进行计算分析。结果表明,将铺装体系内各部最大拉应力和最大剪应力值作为铺装层结构设计和材料选择时的一项重要控制指标是科学合理的。

The Breakage of Cement Concrete Bridge Asphalt Mat Formation is mainly due to the stress concentration.In order to analyze the stress distribution and change principle, the article uses ANSYS to compute the internal tensile stress in the formation system under different loading condition. The result shows that using maximum shearing strength and tensile stress as one of the control index is reasonable.