NEHRP Clearinghouse

Title
Dynamic Stiffness of Rectangular Foundations.
File
PB287131.pdf
Author(s)
Dominguez, J.; Roesset, J. M.
Source
National Science Foundation, Washington, DC. Div. of Advanced Environmental Research and Technology., August 1978, 64 p.
Identifying Number(s)
['R78-20', 'MIT-CE-R78-20']
Abstract
The Boundary Element Method is used to determine the dynamic stiffnesses of rectangular foundations resting upon or embedded within an elastic half-space. The effects of mesh size and relaxed versus nonrelaxed boundary conditions are investigated for square surface foundations. The static stiffnesses and the frequency dependent stiffness coefficients are then obtained as a function of the aspect ratio for rectangular foundations. Solutions for embedded foundations are obtained and results showing the effects of the embedment ratio are presented.
Keywords
Dynamic response; Ground motion; Earthquake engineering; Foundations; Soil structure interactions; Soil dynamics; Finite element analysis; Earth movements; Boundary value problems; Seismic waves