کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
280396 1430405 2005 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Seismic performance of multiple tuned mass dampers for soil–irregular building interaction systems
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Seismic performance of multiple tuned mass dampers for soil–irregular building interaction systems
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 42, Issue 20, October 2005, Pages 5536–5554
نویسندگان
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