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基于挠度与应力等效原则,将作用于连续配筋混凝土路面(CRCP)中央的车辆集中荷载通过傅里叶级数展开为等效的半波正弦荷载.在荷载转换和小挠度弹性薄板理论的基础上,提出了车辆集中荷载作用下脱空地基上CRCP的挠度和应力计算公式,分析了参数的敏感性.结果表明:板的最大挠度与车辆集中荷载、板的宽度成正比,与板的横向弯曲刚度、板的厚度成反比,其中板的宽度与厚度影响显著.板的最大应力与车辆集中荷载、板的宽度成正比,与板的厚度成反比,其中板的厚度影响显著.根据计算结果,降低最大挠度和应力最有效的方法是增加板的厚度.
Based on the principles of deflection and stress equivalence, the concentrated central vehicle loads acting on the continuous reinforced concrete pavement (CRCP) center are Fourier-series developed into equivalent half-sine sinusoidal loads. Under the condition of load transfer and small deflection elastic sheet theory Based on this, the formula of deflection and stress of CRCP under the concentrated load of the vehicle is proposed and the sensitivity of the parameters is analyzed.The results show that the maximum deflection of the plate is proportional to the concentrated load of the vehicle and the width of the plate, The transverse bending stiffness is inversely proportional to the thickness of the plate, and the width and thickness of the plate have a significant impact.The maximum stress of the plate is proportional to the concentrated load of the vehicle and the width of the plate, and the thickness of the plate is inversely proportional to the thickness of the plate, As a result, the most effective way to reduce maximum deflection and stress is to increase the thickness of the plate.