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Effective Control of Response of a Building under Wind and Strong Ground Motion using Multiple Tuned Liquid Dampers


Author(s):

Nimya T Varkichan , SCMS School of of Engineering and Technology, Karukutty, Ernakulam; Sandeep T. N, SCMS School of of Engineering and Technology, Karukutty, Ernakulam

Keywords:

Base Excitation, Energy Dissipation, Multiple Tuned Liquid Dampers, Sloshing, Wind

Abstract:

Every civil structure needs Vibration control under earthquake Load, wind Load and service loads. Tuned liquid dampers (TLDs) are considered as the most effective and less maintenance method used for protecting high-rise buildings from vibrations. Multiple Tuned Liquid Dampers (MTLD’s) is introduced in structural control as an improvement over the single TLD. In this paper an analytical study is proposed on the effectiveness of multiple tuned liquid dampers over single TLD under wind and earthquake to reduce structural vibration of a multi storied building using FEAST and NASTRAN (software’s for analysis). Primarily, modeling of structure was done and free vibration analysis was executed to determine the fundamental natural frequency. Then the mathematical model of single and multiple TLD is to be designed for the natural frequency of building and the frequency response analysis were carried out by providing wind data and base excitation of 1m/s2. The study revealed that double TLD is found to be an optimum (48.57% and 62.34% response reduction for Earthquake and wind vibration respectively) for the selected structure by considering effectiveness and practical conveyance. Finally tank dimensions are proposed for practical implementation of TLD.


Other Details:

Manuscript Id :IJSTEV5I10021
Published in :Volume : 5, Issue : 10
Publication Date: 01/05/2019
Page(s): 71-75
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