The Earthquake Engineering Online Archive NISEE e-Library Short time response spectrum Perri, Juan F.; Pestana, Juan M.; Bea, Robert G. UCB/GT-2005-05, University of California, Berkeley, Geotechnical Engineering, 2005-06, PDF The Elastic Response Spectrum approach captures two important elements of the seismic structural response, namely the maximum amplitude and frequency content. However, the approach does not provide information on the time or the number of occurrences of the maxima. This paper describes a methodology, hereafter referred to as the Short Time Response Spectrum (STRS), to obtain a a time-period representation of the Elastic Response Spectrum. The method basically applies a "moving," period-dependent, window to the input ground motion or the structural response time series and obtains the local maximum for the period of interest as a function of time. The paper discusses the effect of window type and length in the resolution of time and period for the STRS. An example is presented to illustrate the difference in the time-period domain of two earthquake motions with relatively similar Elastic Response Spectra. Available online: https://nisee.berkeley.edu/elibrary/files/documents/elib/www/documents/GEOTECH/UCB-GT-2005-05.pdf (729 KB) Home Search Login About Copyright © 2018 the Regents of the University of California. Send comments or questions to NISEE.
