請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/43031
標題: Seismic performance of multiple tuned mass dampers for soil-irregular building interaction systems
作者: Wang, J.F.
林其璋
Lin, C.C.
關鍵字: multiple tuned mass dampers
soil-structure interaction
torsionally
coupled building
vibration control
dynamic characteristics
期刊/報告no:: International Journal of Solids and Structures, Volume 42, Issue 20, Page(s) 5536-5554.
摘要: This paper deals with the applicability of multiple tuned mass dampers (MTMD) on the vibration control of irregular buildings modelled as torsionally coupled structures due to base motions considering the soil-structure interaction (SSI) effect. An efficient modal analysis methodology is used to systematically assess the combined soil-structure interaction and torsional coupling effects on asymmetric buildings. This method is implemented in the frequency domain to accurately incorporate the frequency-dependent foundation impedance functions. The performance index of MTMD is established based on the foundation-induced building floor motions with and without the installation of MTMDs. Unlike the traditional MTMD design criteria, the frequency ratio of each MTMD substructure to the controlled structural frequency is independent, in this paper, so that the MTMD with the optimal parameters can actually flatten the transfer functions of building responses. Numerical verifications show that the increase of height-base ratio of an irregular building and the decrease of relative stiffness of soil to structure generally amplify both SSI and MTMD detuning effect, especially for a building with highly torsionally coupled effect. With appropriately enlarging the frequency spacing of the optimal MTMDs, the detuning effect can be reduced. Moreover, the results of numerical investigations also show that the MTMD is more effective than single TMD as the SSI effect is significant. (c) 2005 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/11455/43031
ISSN: 0020-7683
文章連結: http://dx.doi.org/10.1016/j.ijsolstr.2005.02.042
顯示於類別:土木工程學系所

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