University of Illinois Urbana-Champaign

An Evaluation of Scaling Methods for Earthquake Response Spectra

Nau, J.M.; Hall, W.J.

Content Files
SRS-499.pdf

Permalink

https://hdl.handle.net/2142/14107

Description

Title
An Evaluation of Scaling Methods for Earthquake Response Spectra
Author(s)
  • Nau, J.M.
  • Hall, W.J.
Issue Date
1982-05
Keyword(s)
  • Ductility
  • Earthquake engineering
  • Dynamic response
Date of Ingest
2009-10-29T15:29:37Z
Abstract
In this study, scaling methods are evaluated with the purpose of reducing the dispersion encountered in normalized spectral ordinates. The scaling factors considered comprise two major groups, one based on ground motion data and the other, directly on response quantities. Within the group based on ground motion values are the integrals of the squared acceleration, velocity, and displacement, and those quantities derived therefrom, namely the root-square, mean-square, and root-mean-square motions. Included within the group based on response quantities are the spectrum intensity and the mean Fourier amplitude. The scaling parameters were evaluated using a set of twelve representative earthquake recordings. Response spectra for elastic, elastoplastic, and bilinear hysteretic systems for wide ranges of damping and ductility were used in the statistical study. The results show that a three-parameter system of spectrum intensities, computed within low, medium, and high frequency regions, may afford a better means of scaling earthquake response spectra.
Publisher
University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report Name or Number
Civil Engineering Studies SRS-499
Type of Resource
text
Genre of Resource
Technical Report
Language
en
Permalink
http://hdl.handle.net/2142/14107
Sponsor(s)/Grant Number(s)
National Science Foundation Grants ENV 77-07190 and PFR 80-02582

Owning Collections

Civil Engineering Studies: Structural Research Series PRIMARY