NEHRP Clearinghouse

Title
Evaluation of SEAOC Design Requirements for Sliding Isolated Structures.
File
PB92114602.pdf
Author(s)
Theodossiou, D.; Constantinou, M. C.
Source
National Science Foundation, Washington, DC., June 10, 1991, 246 p.
Identifying Number(s)
NCEER-91-0015
Abstract
The Structural Engineers Association of California (SEAOC) developed in 1990 the document 'Tentative General Requirements for the Design and Construction of Seismic Isolated Structures'. The SEAOC document specifies analysis procedures for seismically isolated structures, including a static and dynamic analysis procedure. Described in the report is a study that concentrated on verifying these procedures for sliding seismically isolated structures. The study involved the following: (1) evaluation of the response of sliding seismically isolated structures with stiff and flexible superstructure; (2) comparison of dynamic analysis results with the results of the static analysis procedure of SEAOC. The main conclusion reached is that a degree of conservatism exists in the SEAOC static analysis procedures. Specific cases are studied and the differences quantified.
Keywords
; Dynamic structural analysis; Dynamic response; Vibration isolators; Earthquake resistant structures; Earthquake engineering; Structural vibration; Vibration damping; Stiffness; Structural members; Displacement; Design criteria; Mathematical models; Seismic waves