International journal of

ADVANCED AND APPLIED SCIENCES

EISSN: 2313-3724, Print ISSN:2313-626X

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 Volume 6, Issue 3 (March 2019), Pages: 27-34

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 Original Research Paper

 Title: The effectiveness of improved tuned liquid column damper on the dynamic response of the structure under earthquake excitations

 Author(s): Phuoc T. Nguyen 1, Trung D. Pham 2, *

 Affiliation(s):

 1Faculty of Civil Engineering, Ho Chi Minh City Open University, 97 Vo Van Tan St., Ho Chi Minh City, Vietnam
 2Department of Civil Engineering, Mientrung University of Civil Engineering, 24 Nguyen Du St., Tuy Hoa City, Vietnam

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 * Corresponding Author. 

  Corresponding author's ORCID profile: https://orcid.org/0000-0001-8629-0640

 Digital Object Identifier: 

 https://doi.org/10.21833/ijaas.2019.03.005

 Abstract:

The effectiveness of the improve Tuned Liquid Column Damper (iTLCD), as known as one of liquid damper types, which overcomes the practical difficulties involved in the implementation of the conventional TLCD for short period structures by tuning the frequency of the damper to the structural frequency, is studied for reducing the dynamic response of the structure due to earthquake excitations in this paper. The formulations of the iTLCD connected by a spring to the short period stiff structure due to seismic excitation are established based on the TLCD. And then, the characteristic parameters of the iTLCD are chosen based on the optimal ratios in each studying case. Therefore, the effectiveness of the iTLCD is investigated in three cases of earthquake excitations with and without the damper. The results show that the iTLCD affects significantly on the dynamic response of the structure under seismic excitations, and then it is more decreasing the dynamic response than without the damper. However, the effectiveness of the iTLCD depends on the dynamic character of the structure, excitation loads, and the characteristic parameters of the iTLCD. Hence, in the practical design problem, the property parameters of the structure will be fixed, and then the characteristic parameters of the iTLCD will be chosen based on the optimal ratio to have the best performance for mitigating the dynamic response of the structure under dynamic excitations. 

 © 2019 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

 Keywords: Tuned liquid column damper, Tuned mass damper, Earthquake excitation, Dynamic response of structure

 Article History: Received 17 October 2018, Received in revised form 10 January 2019, Accepted 17 January 2019

 Acknowledgement:

This research is funded by Ho Chi Minh City Open University under the basic research fund 2018 with grant number E.2018.05.1. 

 Compliance with ethical standards

 Conflict of interest:  The authors declare that they have no conflict of interest.

 Citation:

 Nguyen PT and Pham TD (2019). The effectiveness of improved tuned liquid column damper on the dynamic response of the structure under earthquake excitations. International Journal of Advanced and Applied Sciences, 6(3): 27-34

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 Figures

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 Tables

 Table 1

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