Browse > Article
http://dx.doi.org/10.12989/sem.2009.33.3.339

Passive vibration control of plan-asymmetric buildings using tuned liquid column gas dampers  

Fu, Chuan (College of Architecture, North China University of Technology, Center of Mechanics and Structural Dynamics, Vienna University of Technology)
Publication Information
Structural Engineering and Mechanics / v.33, no.3, 2009 , pp. 339-355 More about this Journal
Abstract
The sealed, tuned liquid column gas damper (TLCGD) with gas-spring effect extends the frequency range of application up to about 5 Hz and efficiently increases the modal structural damping. In this paper the influence of several TLCGDs to reduce coupled translational and rotational vibrations of plan-asymmetric buildings under wind or seismic loads is investigated. The locations of the modal centers of velocity of rigidly assumed floors are crucial to select the design and the optimal position of the liquid absorbers. TLCGD's dynamics can be derived in detail using the extended non-stationary Bernoulli's equation for moving reference systems. Modal tuning of the TLCGD renders the optimal parameters by means of a geometrical transformation and in analogy to the classical tuned mass damper (TMD). Subsequently, fine-tuning is conveniently performed in the state space domain. Numerical simulations illustrate a significant reduction of the vibrations of plan-asymmetric buildings by the proposed TLCGDs.
Keywords
asymmetric building; Bernoulli's equation; gas-spring effect; sealed absorber; modal tuning; state space optimization;
Citations & Related Records

Times Cited By Web Of Science : 5  (Related Records In Web of Science)
Times Cited By SCOPUS : 8
연도 인용수 순위
1 DenHartog, J.P. (1956), Mechanical Vibrations, Repr. 4th ed, McGraw-Hill, New York
2 Fu, C. (2008), 'Effective damping of vibrations of plan-asymmetric buildings', Dissertation, Vienna University of Technology, Austria, http://www. tuwien.ac.at/
3 Hitchcock, P.A., Kwok, K.C., Watkins, R.D. and Samali, B. (1997), 'Characteristics of liquid column vibration absorbers (LCVA)-II', Eng. Struct., 19, 135-144   DOI   ScienceOn
4 Hitchcock, P.A., Kwok, K.C., Watkins, R.D. and Samali, B. (1997), 'Characteristics of liquid column vibration absorbers (LCVA)-I', Eng. Struct., 19, 126-134   DOI   ScienceOn
5 Hochrainer, M.J. (2001), 'Control of vibrations of civil engineering structures with special emphasis on tall buildings', Dissertation, Vienna University of Technology, Austria, http://www. tuwien.ac.at/
6 Hochrainer, M.J. and Ziegler, F. (2006), 'Control of tall building vibrations by sealed tuned liquid column dampers', Struct. Control Health Monitor., 13, 980-1002   DOI   ScienceOn
7 Hochrainer, M.J. (2005), 'Tuned liquid column damper for structural control', Acta Mech., 175, 57-76   DOI   ScienceOn
8 Lindner-Silvester, T. and Schneider, W. (2005), 'The moving contact line with weak viscosity effects – an application and evaluation of Shikhmurzaev's model', Acta Mech., 176, 245-258   DOI   ScienceOn
9 MATLAB (2002), User Guide, Control Toolbox, MathWorks Inc., Version 6.5.1
10 Reiterer, M. (2004), 'Damping of vibration-prone civil engineering structures with emphasis on bridges', Dissertation (in German), Vienna University of Technology, Austria, http://www. tuwien.ac.at/
11 Reiterer, M. and Ziegler, F. (2004), 'Bi-axial seismic activation of civil engineering structures equipped with tuned liquid column dampers', J. Seismol. Earthq. Eng., 6(3), 45-60
12 Reiterer, M. and Ziegler, F. (2006), 'Control of pedestrian-induced vibrations of long-span bridges', Struct. Control Health Monitor., 13, 1003-1027   DOI   ScienceOn
13 Sakai, F., Takaeda, S. and Tamaki, T. (1989), 'Tuned liquid column damper-new type device for suppression of building vibration', Proc. Int. Conf. on High-rise Buildings, Nanjing, China, 926-931
14 Ziegler, F. (1998), Mechanics of Solids and Fluids, corr. Repr. 2nd ed. Springer, New York
15 Ziegler, F. and Fu, C. (2007), 'Effective vibration damping of plan-asymmetric buildings', Proc. of the 8th Int. Conf. on Multi-purpose High-rise Towers and Tall Buildings (Sabouni, A.-R.R., El-Sawy, K.M., eds.), The International Federation of High-Rise Structures. Abu Dhabi. CD-Rom Paper ID IFHS-039, 1-13. (www.acevents.ae 'online documents'_ifhs2007+ifhs2007dxb _TB-28.pdf)