中文摘要：

借鉴复合材料力学的分析方法，对桥面板和桥面铺装层组合体系建立一种分层剪滞模型，并结合线弹性断裂力学，研究了混凝土公路桥中钢纤维混凝土桥面铺装层的破坏机理，同时考虑了温度改变对铺装层破坏应力或破坏弯矩的影响．通过分析和比较，证实了本文模型和方法的正确性和可行性．本文为混凝土公路桥中桥面铺装层的破坏分析提供了一种新的研究途径和方法．

英文摘要：

Using the analytical methods of composite mechanics for reference, a layering shear-lag model was established for the system composed of bridge deck and bridge pavement. The failure mechanism of steel fiber-reinforced concrete bridge pavement in concrete highway bridges was studied by utilizing the model in conjunction with the linear elastic fracture mechanics,and the influence of temperature variation on the failure stress of pavement layer or failure moment was considered. Through analysis and comparison, the correctness and feasibility of the present model and method were validated. The present methods can supply the failure analysis of bridge deck pavement layer in concrete highway bridges with a new way of study.