【摘要】 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。更多还原

【Abstract】 The stress of prestressed concrete pavement (PCP) is analyzed by utilizing three dimensional isoparametric elements. The dealing model of friction of slab bottom corresponding to the condition of PCP is presented. The longitudinal prestress equivalent model and calculating model of friction reaction force along reinforcements are established, and the treatment method of temperature stress of PCP is determined. The calculation method of more exact stress is introduced. Through the test of simulation, the analysis method and program get satisfied conclusion in calculation of load stress, displacement and temperature stress.更多还原