摘要
给出了弹性半空间表面刚性矩形基础水平、竖向、摇摆和扭转方向阻抗函数一种近似公式．利用这种近似公式，可以得到已知长宽比和油松比矩形基础的阻抗函数频域解，而且还可以直接得到阻抗函数的等效时域集中参数模型．
Approximate formulas for horizontal, vertical, rocking and torsion impedance functionsof rigid rectangular foundations on the surface of elastic half-space are developed in this paper.The impedance function of rectangular foundation with given aspect ratio, Poisson's ratio andmaterial damping ratio can be calculated in frequency domain, and the corresponding equivalentlumped-parameter model in time domain can also be obtained directly.
出处
《世界地震工程》
CSCD
1999年第3期33-39,共7页
World Earthquake Engineering
关键词
近似公式
矩形基础
阻抗矩阵
集中参数
地基
approximate formula
rectangular foundation
impedance matrix
lumped-parametermodel
