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Composite Solid Plane to Simulate the Frequency Response of Pavement

The pavement will afford the dynamic vehicle loading during using period, so it is necessary to analyze the dynamic response of pavement in order to predict pavement durable function. the most important part of pavement dynamic analysis is frequency and spectrum calculation, which is also the first part of pavement dynamic simulation. Based on composite plane theory, the pavement structure widely used in China has been proposed as a composite plane with 6 layers, and been performed through linear perturbation and frequency analysis using three-dimension Finite element method. As to get the more accurate pavement dynamic results, the initial vehicle loading with magnitude 0.7Mpa has been implemented on the wheel trace, which can make the successive frequency analysis more reasonable. the method presented in this paper has supported a feasible standard for solving this kinds of problem.