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タイトル: | Critical earthquake response of elastic–plastic structures under near-fault ground motions (Part 2: Forward-directivity 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 forward-directivity input triple impulse |
発行日: | 3-Aug-2015 |
出版者: | Frontiers Media SA |
誌名: | Frontiers in Built Environment |
巻: | 1 |
論文番号: | 13 |
抄録: | The triple impulse input is used as a simplified version of the forward-directivity near-fault ground motion and a closed-form solution of the elastic–plastic response of a structure by this triple input is obtained. It is noteworthy that only the free-vibration appears under such triple impulse input. An almost critical excitation is defined and its response is derived. 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 after the second impulse or the third impulse depending on the input level. The validity and accuracy of the proposed theory are discussed through the comparison with the response analysis result to the corresponding three wavelets of sinusoidal waves as a representative of the forward-directivity near-fault ground motion. |
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/2433/216524 |
DOI(出版社版): | 10.3389/fbuil.2015.00013 |
出現コレクション: | 学術雑誌掲載論文等 |
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