地震作用下偏心结构最优ATMD控制的冲程评价被引量：7

STROKE ESTIMATION OF THE OPTIMUM ACTIVE TUNED MASS DAMPER FOR ECCENTRIC STRUCTURE UNDER EARTHQUAKE

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摘要评价了偏心结构主动调谐质量阻尼器(ATMD)减震时的冲程。基于建立的地震地面运动模型下偏心结构动力方程及其状态空间方程,ATMD最优参数的评价准则定义为设置ATMD结构的最大位移动力放大系数的最小值的最小化。ATMD有效性评价准则定义为设置ATMD结构的最大位移动力放大系数的最小值的最小化与未设置ATMD结构的最大位移动力放大系数之比。ATMD冲程的评价准则定义为:ATMD相对位移的最大位移动力放大系数。使用定义的评价准则,首先获得ATMD的最优参数,进而评价ATMD的冲程。 Evaluation has been made on the stroke of active tuned mass dampers(ATMD)for eccentric structure under earthquake.Based on the developed dynamic equations and the corresponding space-state equations of eccentric structure with ATMD,the criterion used for estimating the ATMD optimum parameters is defined as the minimization of minimum values of maximum displacement dynamic magnification factors of eccentric structure with ATMD.The criterion used to evaluate the effectiveness of ATMD is the ratio of the minimum of minimum values of maximum displacement dynamic magnification factors of structure with ATMD to that without ATMD.Evaluation criterion for the stroke of ATMD is selected as the maximum dynamic magnification factor of its relative displacement to the structure.The ATMD optimum parameters may be obtained first and then,the evaluation is carried out on the stroke of ATMD.

作者李春祥韩兵康张丽卿

机构地区上海大学土木工程系同济大学建筑工程系上海交通大学土木工程系

出处《振动与冲击》 EI CSCD 北大核心 2007年第6期41-46,共6页 Journal of Vibration and Shock

基金上海市教委资助项目(No.212652)

关键词主动调谐质量阻尼器振动控制偏心结构最优参数地震卓越频率地震冲程 active tuned mass damper,vibration control,eccentric structure,optimum parameters,dominant ground frequency(DGF),earthquake,stroke

分类号 TU311 [建筑科学—结构工程]

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参考文献5

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