陡坡混凝土路面受力特性研究

通过室内模型试验,测试了不同纵坡条件下混凝土板底和板表面的受力变化规律；应用有限元方法,对试验结果进行了分析对比.结果表明:临界荷位处的板底最大拉应力随纵坡增大而减小,剪应力随纵坡的增大而增大；同一纵坡下,混凝土板底部的拉应力远大于其余各测点应力值.根据混凝土板应力随坡度的变化规律,提出了基于纵坡影响的陡坡混凝土路面的...

Experimental Investigation on Mechanical Characteristics of Steep Concrete Pavement

The stress of bottom and surface of concrete plate were tested to proof influence of slope on the stress of plate and the finite element method is applied to analyse the tested plates and the calculation results are compared with the test results.The results show that with the longitudinal route slope increasing the biggest tensile stress in the bottom is decreases and the shear stress is increases,at same longitudinal route slope condition,the tensile stress at the bottom of board is the biggest.Based on the changing law of the concrete board stress with slope,the slope value of need to consider the impact of longitudinal route slope on stress in pavement design is suggested in the paper.