EFFECTS OF TUNED LIQUID DAMPERS (TLD) ON DAMPING SHEAR-TYPE BUILDING VIBRATIONS

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TORKI M.; HALABIAN A.M.

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Paper Information

Journal: JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL) Year:2009 | Volume:28 | Issue:2 Page(s): 15-34

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Title

EFFECTS OF TUNED LIQUID DAMPERS (TLD) ON DAMPING SHEAR-TYPE BUILDING VIBRATIONS

Author(s)

TORKI M. | HALABIAN A.M. | Issue Writer Certificate

Keywords

TUNED LIQUID DAMPERQ3

EQUIVALENT TUNED MASS DAMPERQ3

SHEAR BUILDINGSQ3

SEISMIC RESPONSEQ3

Abstract

The TUNED LIQUID DAMPER (TLD) is nowadays increasingly being used as an economical and effective passive vibration absorber. This research focuses on modeling tall buildings equipped with TUNED LIQUID DAMPERs (TLDs) subjected to strong ground motions. Strong excitation can lead to the wave breaking phenomenon and make turbulence in shallow rectangular tanks which could, in turn, contribute to additional damping due to TLD’s. Wire screens placed inside the liquid tank can play an important role in reducing the structural response due to increased inherent damping of the structure. In this study, a simple method is introduced for modeling this type of TUNED LIQUID DAMPER by using Equivalent Amplitude Dependent Tuned Mass Damper. The method is based on equalizing dissipated energies in both devices. Equations of motion for shear-type buildings equipped with nonlinear Amplitude Dependent Tuned Mass Dampers are developed. A complex modal analysis procedure is used to solve the governing equations. Coupling of TMD properties and structural response is solved with iteration on structural response and updating TMD’s properties. Performing a set of parametric studies on a practical 10-storey building equipped with TLDs subjected to different ground excitations showed that the TLD significantly reduced the SEISMIC RESPONSE (displacement and base shear) of the structures when the TUNED LIQUID DAMPER was tuned to the natural frequency of the structure considering the hardening behavior of TLD.

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APA: Copy

TORKI, M., & HALABIAN, A.M.. (2009). EFFECTS OF TUNED LIQUID DAMPERS (TLD) ON DAMPING SHEAR-TYPE BUILDING VIBRATIONS. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), 28(2), 15-34. SID. https://sid.ir/paper/356856/en

Vancouver: Copy

TORKI M., HALABIAN A.M.. EFFECTS OF TUNED LIQUID DAMPERS (TLD) ON DAMPING SHEAR-TYPE BUILDING VIBRATIONS. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL)[Internet]. 2009;28(2):15-34. Available from: https://sid.ir/paper/356856/en

IEEE: Copy

M. TORKI, and A.M. HALABIAN, “EFFECTS OF TUNED LIQUID DAMPERS (TLD) ON DAMPING SHEAR-TYPE BUILDING VIBRATIONS,” JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), vol. 28, no. 2, pp. 15–34, 2009, [Online]. Available: https://sid.ir/paper/356856/en

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