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タイトル: | Critical Earthquake Response of Elastic–Plastic Structures Under Near-Fault Ground Motions (Part 1: Fling-Step Input) |
著者: | Kojima, Kotaro Takewaki, Izuru |
著者名の別形: | 竹脇, 出 |
キーワード: | earthquake response critical response elastic–plastic response ductility factor near-fault ground motion fling-step input double impulse |
発行日: | 27-Jul-2015 |
出版者: | Frontiers Media SA |
誌名: | Frontiers in Built Environment |
巻: | 1 |
論文番号: | 12 |
抄録: | The double impulse input is introduced as a substitute of the fling-step near-fault ground motion and a closed-form solution of the elastic–plastic response of a structure by the “critical double impulse input” is derived. Since only the free-vibration appears under such double impulse input, the energy approach plays an important role in the derivation of the closed-form solution of a complicated elastic–plastic response. It is shown that the maximum inelastic deformation can occur either after the first impulse or after the second impulse depending on the input level. The validity and accuracy of the proposed theory are investigated through the comparison with the response analysis to the corresponding one-cycle sinusoidal input as a representative of the fling-step near-fault ground motion. Since the critical input means the resonant case, the present theory dealing with the resonant response should be applied to buildings except very flexible ones. |
著作権等: | © 2015 Kojima and Takewaki. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
URI: | http://hdl.handle.net/2433/216521 |
DOI(出版社版): | 10.3389/fbuil.2015.00012 |
出現コレクション: | 学術雑誌掲載論文等 |
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