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sss.2018.22.4.383.pdf | 2.39 MB | Adobe PDF | 見る/開く |
タイトル: | Seismic performance of base-isolated buildings under multi-directional earthquake excitations |
著者: | Noroozinejad Farsangi, Ehsan Tasnimi, Abbas Ali Yang, T. Y. Takewaki, Izuru https://orcid.org/0000-0002-5673-2409 (unconfirmed) Mohammadhasani, Mohammad |
著者名の別形: | 竹脇, 出 |
キーワード: | base Isolation structural fuse repairable structure resilience fragility curve collapse margin multi-components excitation near-field OpenSees |
発行日: | 25-Oct-2018 |
出版者: | Techno Press |
誌名: | Smart Structures and Systems |
巻: | 22 |
号: | 4 |
開始ページ: | 383 |
終了ページ: | 397 |
抄録: | Traditional base isolation systems focus on isolating the seismic response of a structure in the horizontal direction. However, in regions where the vertical earthquake excitation is significant (such as near-fault region), a traditional base-isolated building exhibits a significant vertical vibration. To eliminate this shortcoming, a rocking-isolated system named Telescopic Column (TC) is proposed in this paper. Detailed rocking and isolation mechanism of the TC system is presented. The seismic performance of the TC is compared with the traditional elastomeric bearing (EB) and friction pendulum (FP) base-isolated systems. A 4-storey reinforced concrete moment-resisting frame (RC-MRF) is selected as the reference superstructure. The seismic response of the reference superstructure in terms of column axial forces, base shears, floor accelerations, inter-storey drift ratios (IDR) and collapse margin ratios (CMRs) are evaluated using OpenSees. The results of the nonlinear dynamic analysis subjected to multi-directional earthquake excitations show that the superstructure equipped with the newly proposed TC is more resilient and exhibits a superior response with higher margin of safety against collapse when compared with the same superstructure with the traditional base-isolation (BI) system. |
著作権等: | 許諾条件に基づいて掲載しています。 The full-text file will be made open to the public on 25 October 2019 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/241720 |
DOI(出版社版): | 10.12989/sss.2018.22.4.383 |
出現コレクション: | 学術雑誌掲載論文等 |
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