スペクトルに基づく地震時構造衝突の最大応答予測法 : その1 剛構造に衝突する一質点系の場合

概要

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A spectrum method was proposed for predicting peak responses of a single-degree-of-freedom system that pounds against rigid adjacent structure(s) during an earthquake. Pounding was considered to occur on either one side or two sides of the system. The Kelvin body that combines a spring and a dashpot in parallel was used to simulate the collision. Based on free vibration and harmonic vibration both involving pounding, the equivalent period and damping of the system were obtained and used to predict peak displacement as well as collision force. Extensive numerical experiment, which covered a variety of combinations of system properties, contact element properties, separation distances, and earthquakes, demonstrated good accuracy of the proposed method.
2006-12-30