摘要
本文从二维波动方程出发,利用Fourier-Laplace变换,导出了简谐荷载作用下均质粘弹性地基层的位移、应力初参数变换解。由传递矩阵法,获得了多层地基动力柔度系数的递推公式。数值计算表明,本文方法不仅简单,且具有良好的精度。
Exact initial transform solutions are obtained for a layered plane foundation subjected to harmonic loading by means of Fourier-Laplace transform, and the transfer matrix formula of general dynamic flexibility coefficients is then derived for multilayered foundations. Therefore the dynamie flexibility coefficients can be calculated by using inverse Fourier transform. Finally, numerical examples show that the present method in this paper is very simple and the accuracy of the results is good.
