高さ200mの鉄骨造オフィスビルのStick-Slipモデルを用いた構造減衰推定

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タイトル別名
  • Structural Damping Estimation for Wind-Resistant Design of 200m-High Steel Office Building Using Stick-Slip Model
  • タカサ 200m ノ テッコツズクリ オフィス ビル ノ Stick-Slip モデル オ モチイタ コウゾウ ゲンスイ スイテイ

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Damping measurements on a 200m-high steel office building show an increase and then decrease of damping with amplitude. But current damping predictors for such a building does not account for the decreasing part. There is thus a big discrepancy between the predictor model and actual conditions that implicate unreliability in wind-resistant design. Meanwhile, damping is said to be based on stick-slip phenomenon. This study shows results of theoretical derivations and nonlinear time-history analysis of a one-degree-of-freedom system model with varying stick-slip components. Comparisons of damping estimates are then made between current damping predictor models and the stick-slip damping model.

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