沥青混凝土路面加铺层结构力学分析

Structure stress of concrete pavement with asphalt overlay

采用有限元方法,对沥青混凝土加铺层在荷载、温度应力作用下的受力情况进行了力学分析和比较,得到了交通荷载、温度变化和材料参数对沥青加铺层结构力学性能的影响规律.结果表明,加设STRATA应力吸收层,并改善旧混凝土板接缝传荷能力,能较好地改善沥青加铺层在交通荷载和温度荷载作用下的应力应变状态.

The structure stress of concrete pavement with asphalt overlay with traffic loads,temperature stress is analyzed by finite element method.The result is compared with the one of the structure with the treatment of anti-crack.The influence of traffic loads,temperature changes,and the material parameters on the structure stress of asphalt overlay is studied.The results show that STRATA stress absorbing interlayer is set on the old cement concrete pavement and the load transfer efficiency at joints is improved simultaneously,the stress and strain in the asphalt overlay structure under traffic and temperature loads can be improved significantly.