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9-2Šª
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1994”N
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2293-2298•Å
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PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Hideaki KOMIYAMA, Yutaka OHTA
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A COMPACT AND TIME-SERIAL PRESENTATION OF EARTHQUAKE STRONG MOTIONS �¬‹{ŽR ‰p–¾, ‘¾“c —T
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An attempt was made to develop a new algorithm by which a compact and time-serial presentation in terms of a single-peak envelop function is available for earthquake strong motions with high complexity both in amplitudes and periods. The envelop function used was the one proportional to the log-normal probability density function. This was selected based on a curve-fitting of observed records to a few candidate probability distribution functions of which derivative gives a single-peak and smooth function. We are in belief that thus obtained information on earthquake strong motions is certain to give a clue to the innovation of civil protection during shaking.
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