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采用三维等参数单元分析预应力混凝土路面应力 ,提出了更符合预应力混凝土路面工作状况的板底摩阻力的迭代处理模型 ,建立了纵向预应力等效模型和沿预应力筋线的摩阻力的计算模型 ,确定了预应力路面温度应力的处理方法 ,引入了具有较高精度的应力计算方法。通过考题验证 ,该分析方法和程序不论是荷载应力、位移的计算 ,还是温度应力的计算 ,都得出了令人满意的结果。
The three-dimensional isoparametric element is used to analyze the stress of the prestressed concrete pavement. An iterative processing model of the friction coefficient of the bottom of the pavement is proposed, which is more in line with the working conditions of the prestressed concrete pavement. The equivalent model of the longitudinal prestress and the frictional resistance The model was calculated to determine the temperature stress of prestressed pavement treatment method, and the stress calculation method with higher accuracy was introduced. Through the examination of test questions, the analytical method and procedure have obtained satisfactory results no matter whether they are load stress, displacement calculation or temperature stress calculation.