Spatial diversity is observed for the ground motion non-stationarity of amplitudes as well as frequency contents during the 1999 Chi-Chi earthquake. The non-stationarity of frequency contents must have affected non-linear behavior of structures bearing such large ground motion with their plastic deformations; however, most artificial ground motion for design cannot account for this non-stationarity. In this study, we have adapted the wavelet transform on the records and extracted the non-stationarity in different frequency bands by statistics of the wavelet coefficients. Based on these statistics, we are discussing the artificial ground motion modeling with wavelet coefficients.
|ジャーナル||Advances in Earthquake Engineering|
|出版ステータス||Published - 2001 12 1|
|イベント||Third International Conference on Earthquake Resistant Engineering Structures, ERES III - Malaga, Spain|
継続期間: 2001 9 4 → 2001 9 6
ASJC Scopus subject areas