Structural Engineering and Mechanics

  • 제36권5호
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  • Pages.561-573
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  • 2010
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Passive control of seismically excited structures by the liquid column vibration absorber

  • Konar, Tanmoy (Department of Civil Engineering, Bengal Engineering and Science University) ;
  • Ghosh, Aparna Dey (Department of Civil Engineering, Bengal Engineering and Science University)
  • 투고 : 2009.07.20
  • 심사 : 2010.07.30
  • 발행 : 2010.11.30
⟨ 이전 논문 다음 논문 ⟩

초록

The potential of the liquid column vibration absorber (LCVA) as a seismic vibration control device for structures has been explored in this paper. In this work, the structure has been modeled as a linear, viscously damped single-degree-of-freedom (SDOF) system. The governing differential equations of motion for the damper liquid and for the coupled structure-LCVA system have been derived from dynamic equilibrium. The nonlinear orifice damping in the LCVA has been linearized by a stochastic equivalent linearization technique. A transfer function formulation for the structure-LCVA system has been presented. The design parameters of the LCVA have been identified and by applying the transfer function formulation the optimum combination of these parameters has been determined to obtain the most efficient control performance of the LCVA in terms of the reduction in the root-mean-square (r.m.s.) displacement response of the structure. The study has been carried out for an example structure subjected to base input characterized by a white noise power spectral density function (PSDF). The sensitivity of the performance of the LCVA to the coefficient of head loss and to the tuning ratio have also been examined and compared with that of the liquid column damper (LCD). Finally, a simulation study has been carried out with a recorded accelerogram, to demonstrate the effectiveness of the LCVA.

키워드

참고문헌

  1. Chaiviriyawong, P., Webster, W.C., Pinkaew, T. and Lukkunaprasit, P. (2007), "Simulation of characteristics of tuned liquid column damper using a potential-flow method", Eng. Struct., 29, 132-144. https://doi.org/10.1016/j.engstruct.2006.04.021
  2. Chang, C.C. and Hsu, C.T. (1998), "Control performance of liquid column vibration absorbers", Eng. Struct., 20(7), 580-586. https://doi.org/10.1016/S0141-0296(97)00062-X
  3. Chang, C.C. and Qu, W.L. (1998), "Unified dynamic absorber design formulas for wind-induced vibration control of tall buildings", Struct. Des. Tall Spec., 7(2), 147-166.
  4. Ghosh, A. and Basu, B. (2007), "Alternative approach to optimal tuning parameter of liquid column damper for seismic applications", J. Struct. Eng.-ASCE, 133(12), 1848-1852. https://doi.org/10.1061/(ASCE)0733-9445(2007)133:12(1848)
  5. Hitchcock, P.A., Kwok, K.C.S., Watkins, R.D. and Samali, B. (1997a), "Characteristics of liquid column vbration absorbers (LCVA)-II", Eng. Struct., 19(2), 135-144. https://doi.org/10.1016/S0141-0296(96)00044-2
  6. Hitchcock, P.A., Kwok, K.C.S., Watkins, R.D. and Samali, B. (1997b), "Characteristics of liquid column vibration absorbers (LCVA)-I", Eng. Struct., 19(2), 126-134. https://doi.org/10.1016/S0141-0296(96)00042-9
  7. Hitchcock, P.A., Glanville, M.J., Kwok, K.C.S., Watkins, R.D. and Samali, B. (1999), "Damping properties and wind-induced response of a steel frame tower fitted with liquid column vibration absorbers", J. Wind Eng. Ind. Aerod., 83, 183-196. https://doi.org/10.1016/S0167-6105(99)00071-9
  8. Newland, D.E. (1993), An Introduction to Random Vibrations, Spectral and Wavelet Analysis, Longman.
  9. Sadek, F., Mohraz, B. and Lew, H.S. (1996), "Single and multiple tuned liquid column dampers for seismic applications", Research Report NISTIR 5920, Building and Fire Research Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland, USA.
  10. Samali, B., Mayol, E., Kwok, K.C.S., Mack, A. and Hitchcock, P. (2001), "Damping enhancement of a 5-story benchmark building using liquid column vibration absorbers", Proceedings of the First International Conference on Fluid Structure Interaction, Halkidiki, Greece.
  11. Samali, B., Mayol, E., Kwok, K.C.S., Mack, A. and Hitchcock, P. (2004), "Vibration control of the wind-excited 76-story benchmark Building by liquid column vibration absorbers", J. Eng. Mech., 130(4), 478-485. https://doi.org/10.1061/(ASCE)0733-9399(2004)130:4(478)
  12. Taflanidis, A.A., Demos, C.A. and George, C.M. (2005), "Optimal design and performance of liquid column mass dampers for rotational vibration control of structures under white noise excitation", Eng. Struct., 27, 524-534. https://doi.org/10.1016/j.engstruct.2004.11.011
  13. Taflanidis, A.A., Beck, J.L. and Angelides, D.C. (2007), "Robust reliability-based design of liquid column mass dampers under earthquake excitation using an analytical reliability approximation", Eng. Struct., 29, 3525-3537. https://doi.org/10.1016/j.engstruct.2007.08.004
  14. Watkins, R.D. (1991), "Tests on various arrangements of liquid column vibration absorbers", Research Report No. R639, School of Civil Engineering, University of Sydney.
  15. Watkins, R.D. and Hitchcock, P.A. (1992), "Model tests on two-way liquid column vibration absorber", Research Report No. R656, School of Civil Engineering, University of Sydney.
  16. Wu, J.C., Wang, Y.P., Lee, C.L., Liaoa, P.H. and Chen, Y.H. (2008), "Wind-induced interaction of a non-uniform tuned liquid column damper and a structure in pitching motion", Eng. Struct., 30, 3555-3565. https://doi.org/10.1016/j.engstruct.2008.05.029
  17. Wu, J.C., Chang, C.H. and Lin, Y.Y. (2009), "Optimal designs for non-uniform tuned liquid column dampers in horizontal motion", J. Sound Vib., 326, 104-122. https://doi.org/10.1016/j.jsv.2009.04.027

피인용 문헌

  1. Analysis of tuned liquid column damper nonlinearities 2018, https://doi.org/10.1016/j.engstruct.2018.01.015
  2. Bimodal vibration control of seismically excited structures by the liquid column vibration absorber vol.19, pp.3, 2013, https://doi.org/10.1177/1077546311430718
  3. Characterisation of instantaneous dynamic parameters in vibration analysis of tuned liquid column dampers vol.90, pp.1, 2017, https://doi.org/10.1007/s11071-017-3690-z
  4. Telescopic columns as a new base isolation system for vibration control of high-rise buildings vol.3, pp.6, 2010, https://doi.org/10.12989/eas.2012.3.6.853
  5. Optimum LCVA for suppressing harmonic vibration of damped structures vol.20, pp.4, 2010, https://doi.org/10.12989/sss.2017.20.4.461