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학술저널
저자정보
Shad, Hossein (Department of civil Engineering, Hakim Sabzevari University) Adnan, Azlan bin (Faculty of Civil Engineering, Universiti Teknologi Malaysia) Vafaei, Mohammadreza (Centre for forensic Engineering, Faculty of Civil Engineering, Universiti Teknologi Malaysia) Behbahani, Hamid Pesaran (Faculty of Civil Engineering, Universiti Teknologi Malaysia) Oladimeji, Abdulkareem M. (Faculty of Civil Engineering, Universiti Teknologi Malaysia)
저널정보
테크노프레스 Smart structures and systems Smart structures and systems 제21권 제1호
발행연도
2018.1
수록면
37 - 51 (15page)

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Tuned Liquid Dampers (TLDs) have gained wide acceptance as a system for structural control and energy dissipation. However, they face limitation caused by low damping in deep water, which affects their efficiency. Another problem with deep water TLDs is that not all water depth participates in energy dissipation. This paper investigated the effect of upper mounted baffles on the effectiveness of TLDs. The Vertical Blockage Ratio (VBR) of baffles ranged from 10% - 90%. The TLD (with and without baffle), structure, and combined structure with TLD (with and without baffles) were subjected to free and harmonic forced vibrations. Results indicated that baffles could significantly enhance the energy dissipation of TLDs, thus reducing structural responses more than structures equipped with ordinary TLDs. It was found that, there was an optimum value of VBR in which the TLD's efficiency was maximized. When TLD had an appropriate VBR, the structural acceleration and displacement responses were suppressed significantly up to 51% and 56%, respectively.

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