NEHRP Clearinghouse
- Title
- Nonlinear Stiffness of Foundations.
- File
- PB286653.pdf
- Author(s)
- Jakub, M.; Roesset, J. M.
- Source
- National Science Foundation, Washington, DC. Research Applied to National Needs., September 1977, 57 p.
- Identifying Number(s)
- MIT-CE-R77-35
- Abstract
- The effects of nonlinear soil behavior on the dynamic stiffness of foundations are evaluated through a series of parametric studies. Approximate formulae for use in preliminary analyses are developed. A two-dimensional plane-strain model, corresponding to a strip footing resting on the surface of a layer of finite depth, and an equivalent linearization technique were used. The dynamic excitation of a machine foundation and a building subjected to seismic motion were investigated.
- Keywords
- Seismic waves; Finite element analysis; Earthquake engineering; Soil dynamics; Soil properties; Soil structure interactions; Foundations; Stiffness; Nonlinear systems; Earthquakes; Dynamic structural analysis