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沥青混凝土桥面铺装与一般沥青混凝土路面在受力模式上完全不同。采用有限元方法对常见的T型混凝土公路桥桥面沥青混凝土铺装做力学分析。通过分析荷载在桥面不同位置的响应规律,得到T型梁桥桥面铺装的最不利受荷位置为支座端纵向接缝处;其次,通过分析沥青混凝土铺装层的厚度变化对于受力状态的影响规律,得出厚度的增加虽能减少层间剪应力,却会增大面层拉应力。分析的结果可作为进一步分析桥面铺装受力规律的基础。
Asphalt concrete pavement and general asphalt concrete pavement in the stress mode is completely different. The Mechanical Analysis of Asphalt Concrete Pavement on Common T Type Concrete Highway Bridges Using Finite Element Method. By analyzing the response law of load at different positions of bridge deck, the most unfavorable load position of T-shaped bridge deck is the longitudinal joint at support side. Secondly, by analyzing the change of thickness of asphalt concrete pavement, The influence law of force state shows that though the increase of thickness can reduce the interlaminar shear stress, it will increase the tensile stress of the surface layer. The results of the analysis can be used as a basis for further analysis of the law of the deck pavement.