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中文標題: 耦合式調諧質量阻尼器控制平面不對稱結構受震反應之研究
英文標題: Coupled Tuned Mass Dampers for the Seismic Control of Asymmetric-Plan Buildings
編號: NCREE-12-003
語言: 英文
編輯:
媒體型式: 紙本
作者:
Jui-Liang Lin   Keh-Chyuan Tsai   Yi-Jer Yu   
中文摘要: 本研究針對雙向平面不對稱建築受到雙向地震作用下的受震反應控
制,提出雙向耦合式調諧質量阻尼器(BiCTMD)。 BiCTMD 是從三自由度
振態系統開發而來,三自由度振態系統代表一個雙向平面不對稱建築的單
一一個振態。本研究經由檢視加裝BiCTMD 的建築結構的?率反應函數振
幅之降低,確認BiCTMD 能夠有效減少彈性雙向平面不對稱建築的受震反
應。 本研究的數值例顯示一棟加裝BiCTMD 的二十層樓雙向平面不對稱建
築的屋頂兩側邊的最大位移均有顯著的降低。此外,本研究指出BiCTMD
可以有效降低非彈性平面不對稱建築的應變能需求,亦即,BiCTMD 可以
有效降低平面不對稱建築的受震損傷。
英文摘要: This study proposes bi-directional coupled tuned mass dampers (BiCTMDs) for the seismic response control of two-way asymmetric-plan buildings subjected to bi-directional ground motions. The proposed BiCTMD was developed from the three-degree-of-freedom (3DOF) modal system, which represents a single vibration mode of a two-way asymmetric-plan building. The performance of the proposed BiCTMD for the seismic response control of elastic two-way asymmetric-plan buildings was verified by investigating the reductions of the amplitudes of the associated frequency response functions. This confirms that the BiCTMD is an effective approach for the seismic response control of elastic two-way asymmetric-plan buildings. In addition, it was verified that the BiCTMD is effective on reducing the strain energy demands of inelastic asymmetric-plan buildings. That is to say, the BiCTMD is useful for reducing the seismic damage of asymmetric-plan buildings.
關鍵字: tuned mass dampers; asymmetric-plan buildings; modal control; frequency
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