STRUCTURAL DAMAGE POTENTIAL OF STRONG-MOTION RECORDS AT THE KUSHIRO DISTRICT METEOROLOGICAL OBSERVATORY FROM THE 1993 KUSHIRO-OKIEARTHQUAKE (M7.8)

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  • 1993年釧路沖地震(M7.8)の釧路地方気象台における強震記録のもつ建物破壊力に関する検討
  • 1993ネン クシロオキ ジシン M7.8 ノ クシロ チホウ キショウダイ

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The strong-motion records at the Kushiro District Meteorological Observatory from the 1993 Kushiro-Oki earthquake were applied to rigid-frame structures of different types. The total plastic energy dissipation of short period structures under the records was larger than that under the design input motions, while the energy dissipation of long period structures was comparable or smaller. The response level-of a low building with a short natural period showed that the damage should be moderate or severe. But, the actual damage to such a kind of buildings was rather slight around the observatory. The earthquake resistant capacity of non-structural components should be appropriately evaluated in design process.

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