中文摘要：

为了探讨水泥混凝土面层结构对路面振动响应的影响,对不同水泥混凝土面层的振动响应进行了试验研究。结果表明：面层厚度对路面基频影响显著,厚度每增加5 cm,基频降低约0.5 Hz;面层模量对路面基频影响较小,水泥混凝土等级从C15增加到C35,每提高C10,路面基频增加1.08%~2.2%。面层厚度和模量均能影响基频幅值,当面层厚度小于30 cm时,分别增加面层厚度和模量,基频幅值减小显著;当面层厚度超过30 cm,继续提高面层厚度和模量,基频幅值不再明显减小。板底分离形式的水泥混凝土路面结构和板底黏结形式的路面结构相比,基频相差微小,但幅值增大81%~95%。

英文摘要：

In order to study the influence of cement concrete surface course on pavement vibration response, the experimental study of vibration response on different cement concrete surface courses is carried out. The result shows that （1） surface course thickness has great impact on fundamental frequency, the fundamental frequency decreases about 0. 5 Hz per 5 cm thickness increase; （2） the surface course modulus has little impact on fundamental frequency, the frequency decreases about 1.08% - 2. 2% per C10 increase when cement grade increases from C15 to C35; （3） the fundamental frequency amplitude decreases with the increasing of surface course thickness and modulus, as the thickness is less 30 cm, increasing surface course thickness and modulus respectively can significantly reduce fundamental frequency amplitude, as the thickness is more 30 crn, continue to increase the thickness and modulus, the amplitude does not decrease obviously. Compared to the bottom bonded of pavement slab, the amplitude increase 81% -95% and fundamental frequency almost the same as the bottom slab separated.