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Title: 振幅依存性をもつ鉄骨造建物の固有振動数を本震応答のみで評価する方法の検証
Other Titles: VERIFICATION OF METHOD TO EVALUATE AMPLITUDE-DEPENDENT NATURAL FREQUENCIES OF STEEL BUILDINGS USING MAIN SHOCK RESPONSE
Authors: 和田, 拓也  KAKEN_name
池田, 芳樹  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-8581-3806 (unconfirmed)
倉田, 真宏  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-1624-1127 (unconfirmed)
鹿嶋, 俊英  KAKEN_name
Author's alias: WADA, Takuya
IKEDA, Yoshiki
KURATA, Masahiro
KASHIMA, Toshihide
Keywords: Steel Building
Natural Frequency
Amplitude-dependency
Main Shock
Least Squares Method with Forgetting Factor
鉄骨造建物
固有振動数
振幅依存性
本震
忘却係数付き逐次最小二乗法
Issue Date: Mar-2019
Publisher: 日本建築学会
Journal title: 構造工学論文集 B
Volume: 65B
Start page: 17
End page: 30
Abstract: The understanding of amplitude-dependent dynamic properties is useful to forecast the structural performance under aftershocks. The authors have proposed an analytical method that uses only a main shock response to evaluate the amplitude-dependency of natural frequencies for steel buildings. The effectiveness has been verified by the vibration data recorded at an actual 29-story steel building in Tokyo under the 2011 Great Tohoku Earthquake. To investigate its effectiveness and practicability more, this paper applies the same method to four other steel office buildings that were excited under the Tohoku Earthquake: a 15-story building in Sendai, 20-story and 21-story buildings in Tokyo, and a 23-story building in Yokohama. These application examples illustrate the high effectiveness of the proposed evaluation method.
Rights: © 2019 日本建築学会
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 1 March 2020 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
URI: http://hdl.handle.net/2433/242290
Appears in Collections:Journal Articles

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