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タイトル: | Advanced System Identification for High-Rise Building Using Shear-Bending Model |
著者: | Kohei, FUJITA Izuru, TAKEWAKI |
著者名の別形: | 竹脇, 出 |
キーワード: | system identification high-rise building shear-bending model microtremor input ARX model identification function |
発行日: | 21-Nov-2016 |
出版者: | Frontiers Media SA |
誌名: | Frontiers in Built Environment (Specialty Section: Earthquake Engineering) |
巻: | 2 |
論文番号: | 29 |
抄録: | In order to identify physical model parameters of a high-rise building, a new story stiffness identification method is presented based on a shear-bending model and the identification function. Although a shear building model may be the simplest conventional model for representing tall buildings, the system identification (SI) method using that model is not necessarily appropriate. This is because the influence of bending deformation is predominant in such high-rise buildings. For this reason, a shear-bending model is used where the shear and bending stiffnesses are unknown. In the previous researches using the shear-bending model, it was difficult to identify the bending stiffnesses stably and reliably. In this paper, to overcome such instability of bending stiffness identification of the shear-bending model, a new SI algorithm using both the shear model and the shear-bending model is presented. The proposed SI algorithm is based on the observation that the fundamental-mode shape of the identified shear model is similar to that of the shear-bending model identified in the previous SI method. In order to verify the advanced SI method, two different 20-story building models are investigated in the numerical simulations. From the results of the simulations, both the shear and bending stiffnesses of the shear-bending model are identified reliably and stably in the proposed SI method. |
著作権等: | Copyright: © 2016 Fujita 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/2433/224947 |
DOI(出版社版): | 10.3389/fbuil.2016.00029 |
出現コレクション: | 学術雑誌掲載論文等 |
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