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Experimental Evaluation of Design Parameters for TLCD and LCVA  

Lee, Sung-Kyung (단국대학교 건축공학과)
Min, Kyung-Won (단국대학교 건축공학과)
Park, Ji-Hun (인천대학교 건축공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.22, no.5, 2009 , pp. 403-410 More about this Journal
Abstract
In this paper, damping coefficients and effective masses of tuned liquid-type column dampers were quantitatively evaluated based on experimental results by using system identification technique. First, shaking table tests were performed for two types of tuned liquid-type column dampers. Then, the dynamic characteristics of dampers used in this study were experimentally grasped from harmonic wave excitation testing results of the dampers with various water level. Finally, damping ratios and effective masses of the dampers with varying water level were quantitatively evaluated from minimizing the errors between numerical and experimental results. It was confirmed from system identification results that damping ratio and effective mass are decreased as the water level of dampers is increased.
Keywords
tuned liquid column damper; liquid column vibration absorber; system identification; damping ratio; effective mass;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 허재성, 박은천, 이성경, 이상현, 김홍진, 조지성, 조봉호, 주석준, 민경원 (2008) 실물크기 구조물에 설치된 동조액체질량감쇠기의 성능실험, 한국전산구조공학회 논문집, 21(2), pp.161-168
2 Hitchcock, P.A., Kwok, K.C.S., Watkins, R.D. (1997b) Characteristics of liquid column vibration absorbers(LCVA) -Ⅱ, Engineering Structures, 19(2), pp.135-144   DOI   ScienceOn
3 Shum, K.M. (2008) Closed form optimal solution of a tuned liquid column damper for supressing harmonic vibration of structures, Engineering Structures, doi:10.1016/j.engstruct.2008.07. 015, in press   DOI
4 Watkins, R.D. (1991) Tests on Various Arrangements of Liquid Column Vibration Absorbers, Research Report R639, School of Civil and Mining Engineering, University of Sydney
5 Chang, C.C., Hsu, C.T. (1998a) Control performance of liquid column vibration absorbers, Engineering Structures, 20(7), pp.580-586   DOI   ScienceOn
6 Wu, J.C. Shih, M.H., Lin, Y.Y., Shen, Y.C. (2005) Design guidelines for tuned liquid column damper for structures responding to wind, Engineering Structures, 27(13), pp.1893-1905   DOI   ScienceOn
7 Sakai, F., Takaeda, S., Tamaki, T. (1989) Tuned Liquid Column Damper-New Type Device for Suppression of Building Vibrations, Proc. Int. Conf. on Highrise Buildings, Nanjing, China, pp.926-931
8 이성경, 민경원, 박은천 (2008) TMD와 TLCD를 이용한 2방향 감쇠기의 동적특성, 한국전산구조공학회 논문집, 21(6), pp.598-596
9 Yalla, S.K., Kareem, A. (2000) Optimum absorber parameters for tuned liquid column dampers, Journal of Structural Engineering, 126(8), pp.906-915   DOI   ScienceOn
10 Gao, H., Kwok, K.C.S. (1997) Optimization of tuned liquid column dampers, Engineering Structures, 19(6), pp.476-486   DOI   ScienceOn
11 Soong, T.T., Dargush, G.F. (1997) Passive Energy Dissipation Systems in Structural Enginnering, John Wiley & Sons
12 Battista, R.C., Carvalho, E.M.L., Souza, R.A. (2008) Hybrid fluid-dynamic control devices to attenuate slender structures oscillations, Engineering Structures, 30(12), pp.3513-3522   DOI   ScienceOn
13 Chang, C.C., Qu, W.L. (1998b) Unified dynamic absorber design formulas for wind-induced vibration control of tall buildings, Struct. Design Tall Build., 7, pp.147-166   DOI   ScienceOn
14 Hitchcock, P.A., Kwok, K.C.S., Watkins, R.D. (1997a) Characteristics of liquid column vibration absorbers(LCVA) -I, Engineering Structures, 19(2), pp.126-134   DOI   ScienceOn