Effect of non-linear dynamic soil-foundation interaction on sectional force induced in bridge piers subjected to pulse-like ground motions

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  • パルス性地震動を受ける橋脚の断面力に及ぼす基礎と地盤の非線形動的相互作用の影響
  • パルスセイ ジシンドウ オ ウケル キョウキャク ノ ダンメンリョク ニ オヨボス キソ ト ジバン ノ ヒセンケイ ドウテキ ソウゴ サヨウ ノ エイキョウ

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This paper studies the effects of uplift in spread foundations and yielding of underlying soils on sectional force induced in bridge piers subjected to pulse-like ground motions using a macro-element model developed by PWRI. Sinusoidal pulse, which simulated pulse-like ground motions, was used. As a result, it was found that degree of stress reduction effects vary depending on pulse period characteristics as well as peak acceleration of pulse-like ground motions.

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