| Œf�ÚŽGŽ��i˜a�j�F | “ú–{’n�k�HŠwƒVƒ“ƒ|ƒWƒEƒ€˜_•¶�W |
| Vol�F | 11Šª |
| ”N�F |
2002”N
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| •Å�F |
539-544•Å
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| ’˜ŽÒ�i˜a�j�F |
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| ƒ^ƒCƒgƒ‹�i˜a�j�F |
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| �´˜^�i˜a�j�F |
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| ƒL�[ƒ��[ƒh�i˜a�j�F |
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| Œf�ÚŽGŽ��i‰p�j�F |
THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
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| ’˜ŽÒ�i‰p�j�F |
Khosrow T. SHABESTARI, Fumio YAMAZAKI
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| ƒ^ƒCƒgƒ‹�i‰p�j�F |
SPATIAL VARIATION IN GROUND MOTION RECORDS FROM THE CHI-CHI, TAIWAN EARTHQUAKE DUE TO RUPTURE DIRECTIVITY EFFECTS
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| �´˜^�i‰p�j�F |
Rupture directivity effects feature spatial amplitude variation of near-field ground motion records. Capturing this phenomenon from major earthquakes recorded by recently developed strong-motion networks leads to improvement of existing ground motion attenuation relations. In this study the characteristics of the near-fault strong ground motion in the 1999 Chi-Chi, Taiwan earthquake (Mw=7.6), which recorded by the Seismological Center of Central Weather Bureau of Taiwan (CWB), are investigated. An empirical spectral amplification factor representing the directivity effects for the dip-slip faulting system is developed using the Somerville et al. 1997 directivity model. The obtained results can be easily implemented in seismic hazard assessment studies.
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| ƒL�[ƒ��[ƒh�i‰p�j�F |
The 1999 Chi-Chi earthquake, attenuation relation, strong-motion record, directivity effect, seismic
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| ‹LŽ–‹æ•ª�F |
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| ‹æ•ª�F |
ˆÏˆõ‰ï˜_•¶�W |