Measurement of the Jma Magnitude With Slip Displacement

Igarashi, Sayaka; Hakuno, Motohiko

doi:10.2208/jscej.1987.380_235

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Empirical Response Analysis1

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1987

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“…52 sets of accelerograms, 78 components including 26 vertical ones, in the NOAA file (NOAA, 1981) are used. Statistics of pertinent characteristics are in Table 1 and epicenters and recorded stations are Igarashi and Hakuno (1987). Detailed informations about corrections are in NOAA (1981).…”

Section: Empirical Response Analysismentioning

confidence: 99%

The Response of Mass-on-Rough-Plane Model Due to Earthquakes

Igarashi

Hakuno

1987

Doboku Gakkai Ronbunshu

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The response of mass-on-rough-plane model to both horizontal and vertical excitations is studied statistically. The critical acceleration envelope is defined for a potential sliding surface of a structure as the locus of input acceleration that mobilizes limit resistance against slippage. A method to determine the model parameters with critical acceleration envelope is proposed. Slip displacements are computed with 52 sets of strong motion records and regressed against JMA magnitude, focal distance, peak values and spectral moments of accelerograms. The analytical prediction by Igarashi is compared in a good agreement with the computed slip displacements.

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Section: Empirical Response Analysismentioning

confidence: 99%