none 10.1193/1.3459159 Wiley Wiley (John Wiley & Sons) 311 43688941 5867 2026012504123600925 10.1002 2026-01-25T14:58:38Z 2010-07-29T19:12:18Z 362 10.1007/s44290-025-00328-3 Earthquake Spectra Earthquake Spectra 8755-2930 1944-8201 08 2010 26 3 Linda Al Atik Department of Civil & Environmental Engineering University of California Berkeley CA 94720 Norman Abrahamson Pacific Gas & Electricity Company 245 Market Street San Francisco CA 94105 Seismic input to nonlinear dynamic analyses of structures is usually defined in terms of acceleration time series whose response spectra are compatible with a specified target response spectrum. Time domain spectral matching used to generate realistic design acceleration time series is discussed in this paper. A new and improved adjustment function to be used in modifying existing accelerograms while preserving the nonstationary character of the ground motion is presented herein. The application of the new adjustment wavelet ensures stability, efficiency and speed of the numerical solution and prevents drift in the resulting velocity and displacement time series. 08 2010 08 2010 601 617 10.1193/1.3459159 http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 10.1193/1.3459159 https://onlinelibrary.wiley.com/doi/10.1193/1.3459159 http://sage.cnpereading.com/paragraph/article/?doi=10.1193/1.3459159 https://onlinelibrary.wiley.com/doi/pdf/10.1193/1.3459159 https://onlinelibrary.wiley.com/doi/pdf/10.1193/1.3459159 https://onlinelibrary.wiley.com/doi/full-xml/10.1193/1.3459159 https://pubs.geoscienceworld.org/earthquake-spectra/article/26/3/601/586838/an-improved-method-for-nonstationary-spectral Seismol. Res. Lett. Abrahamson N. A. 30 63 1992 Non‐stationary spectral matching BazzurroP. andLucoN. 2006.Do scaled and spectrum‐matched near‐source records produce biased nonlinear structural responses? inProc. of the 8th U. S. National Conf. on Earthquake Engin. San Francisco California. 10.1080/13632460609350629 ASCE J. Eng. Mech. Kaul M. K. 781 4 1978 Spectrum‐consistent time‐history generation LilhanandK. andTsengW. S. 1987.Generation of synthetic time histories compatible with multiple‐damping response spectra SMiRT‐9 Lausanne K2/10. LilhanandK. andTsengW. S. 1988.Development and application of realistic earthquake time histories compatible with multiple damping response spectra inNinth World Conf. Earth. Engin. Tokyo Japan Vol2 819–824. 10.1002/eqe.4290120405 SuarezL. E. andMontejoL. A. 2003.Generacion de registros artificiales compatibles con un espectro de respuesta mediante la transformada wavelet inProc. of II Congreso Nacional de Ingenieria Sismica Medellin. 10.1016/j.ijsolstr.2005.03.025