@ ŒfÚŽGŽi˜ajF “ú–{’nkHŠwƒVƒ“ƒ|ƒWƒEƒ€u‰‰W VolF 7Šª ”NF 1986”N •ÅF 151-156•Å ’˜ŽÒi˜ajF - ƒ^ƒCƒgƒ‹i˜ajF - ´˜^i˜ajF
- ƒL[ƒ[ƒhi˜ajF - ŒfÚŽGŽi‰pjF PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM ’˜ŽÒi‰pjF Kojiro IRIKURA ƒ^ƒCƒgƒ‹i‰pjF PREDICTION OF STRONG ACCELERATION MOTIONS USING EMPIRICAL GREEN'S FUNCTION ´˜^i‰pjF
The scaling law of the source spectra was examined for the strong motion records of the sequence of 1983 Japan-Sea earthquake. The spectral shapes for events smaller than magnitude 6.1 give roughly a fit to the w¡ model. However, the spectra of larger earthquakes (M=7.1 and M=7.7) have much larger high-frequency components than those predicted from the w¡ model. The specific barrier model is a useful model to explain rich high-frequency motions. The synthetic method of strong ground motions is studied to match the spectral scaling relation using empirical Green's function technique. In the case that both large and small earthquakes have spectral characteristics predicted from the w¡ model, the summation procedure for synthesis is made to match the moment and the stress drop of the event to be synthesized. Finally a more general method is attempt to synthesize large earthquake motions which have spectral characteristics predicted from the specific barrier model. ƒL[ƒ[ƒhi‰pjF - ‹LŽ–‹æ•ªF - ‹æ•ª @@@ˆÏˆõ‰ï˜_•¶W