NEHRP Clearinghouse
- Title
- Effect of Ductility on Response Spectra for Elasto-Plastic Systems.
- File
- PB298795.pdf
- Author(s)
- Sehayek, S.
- Source
- National Science Foundation, Washington, DC. Engineering and Applied Science., September 1976, 96 p.
- Identifying Number(s)
- R76-42
- Abstract
- The purpose of this work is to evaluate two procedures used to estimate response spectra for inelastic systems subjected to earthquakes. The first, which is a set of rules suggested by Newmark, derives the inelastic response spectrum for the elastic one. The second is a procedure which replaces the nonlinear spring of the system by an equivalent linear one with stiffness and damping obtained as functions of a characteristic strain. It is concluded that Newmark's procedure, although approximate, performs quite satisfactorily. The second procedure, although not as satisfactory as Newmark's, reproduces the general trends of spectra quite well also.
- Keywords
- Earthquake resistant structures; Structural design; Dynamic response; Buildings; Earthquake engineering; Elastic properties; Earthquakes; Dynamic structural analysis