地震作用下填充墙MTMD减震结构频域响应分析

卢俊龙;何明胜;田 洁

振动与冲击 ›› 2013, Vol. 32 ›› Issue (18) : 136-140.

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (18) : 136-140.
论文

地震作用下填充墙MTMD减震结构频域响应分析

  • 卢俊龙1,何明胜2,田 洁1
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Analysis of response of in-filled wall MTMD vibration absorption structure in frequency domain affected by earthquake

  • LU Jun-long1,HE Ming-sheng2,TIAN Jie1
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摘要

将传统结构中填充墙与主体承重结构以刚度及阻尼元件连接,形成调谐质量减震(TMD)系统,通过在主结构中布置多榀TMD填充墙,构成多重质量调谐减震(MTMD)结构体系。为研究地震作用下该减震结构动力响应规律,合理设置各TMD与主结构连接件的力学参数,将主结构简化为串联多自由度模型,分析非耦合控制作用时主结构稳态响应频域传递函数及影响因素,并通过结构1/3比例模型振动台试验进行验证。结果表明,仅在三层设置填充墙TMD时,各层柱顶幅频响应曲线呈双峰特征,加速度峰值越小,填充墙TMD的调频作用越显著;而在二、三层同时设置填充墙TMD,输入地震波加速度峰值不同时,TMD调频作用亦不同。因此,填充墙TMD频域响应与T摘 要:将传统结构中填充墙与主体承重结构以刚度及阻尼元件连接,形成调谐质量减震(TMD)系统,通过在主结构中布置多榀TMD填充墙,构成多重质量调谐减震(MTMD)结构体系。为研究地震作用下该减震结构动力响应规律,合理设置各TMD与主结构连接件的力学参数,将主结构简化为串联多自由度模型,分析非耦合控制作用时主结构稳态响应频域传递函数及影响因素,并通过结构1/3比例模型振动台试验进行验证。结果表明,仅在三层设置填充墙TMD时,各层柱顶幅频响应曲线呈双峰特征,加速度峰值越小,填充墙TMD的调频作用越显著;而在二、三层同时设置填充墙TMD,输入地震波加速度峰值不同时,TMD调频作用亦不同。因此,填充墙TMD频域响应与TMD布置方式及输入地震波加速度幅值有关,结构系统调频控制作用会受输入地震波加速度峰值影响。

Abstract

The in-filled wall Tuned Mass Damper is formed by which the in-filled wall is separated from the main structure and connected by rigid and damper members. And several in-filled walls are set in the main structure to constitute the MTMD structure systems. In order to research the dynamical response of the structures, the frequency-domain transfer function of steady response of main structure under non-coupling control and its influence facts are analyzed by which the main structure is simplified as series multi-freedom model. And it is testified by the shake-table test of the model in 1/3 scale. As a result, when the in-filled wall TMD is set in the third floor, the frequency-domain response curve can appear characters in double peak value. And the peak value of acceleration is lower, the tune frequency function is more remarkable. While the in-filled wall TMD is set in the top two floor, the tune frequency function of the TMD is various in different peak value of seismic acceleration too. Therefore, the frequency domain response of the in-filled wall TMD structure is related to the setting of TMD and the peak value of input seismic wave. The function of tune frequency function and vibration control can affected by the peak value of earthquake wave.


关键词

填充墙 MTMD减震结构 / 地震反应 / 减震性能 / 频域分析

Key words

in-filled wall MTMD vibration absorption structure / seismic response / vibration absorption performance / analysis of frequency domain

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导出引用
卢俊龙;何明胜;田 洁. 地震作用下填充墙MTMD减震结构频域响应分析[J]. 振动与冲击, 2013, 32(18): 136-140
LU Jun-long;HE Ming-sheng;TIAN Jie. Analysis of response of in-filled wall MTMD vibration absorption structure in frequency domain affected by earthquake[J]. Journal of Vibration and Shock, 2013, 32(18): 136-140

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