公路桥梁的桥面铺装层,是最直接承受车辆等荷载作用的,同时受到桥梁上部结构挠曲变形、不均匀弹性支承、桥面系结构徐变等影响,其传力路径多变,且应力集中显著,是一个复杂的多向受力结构层。因而也是最早和最易出现破坏的结构。与桥梁主体结构的设计和施工相比,由于缺乏充分的 The deck pavement of highway bridges is the most direct load bearing vehicle and is affected by the deflection, uneven elastic support and the creep of bridge deck structure. Stress concentration is a complex multi-directional structure of stress. It is also the earliest and most vulnerable structure. Compared with the design and construction of the main structure of the bridge, due to lack of adequate