Experimental Calibration and Head Loss Prediction of Tuned Liquid Column Damper

Jong-Cheng Wu

doi:10.6180/jase.2005.8.4.08

Experimental Calibration and Head Loss Prediction of Tuned Liquid Column Damper

Civil Engineering

Jong-Cheng Wu This email address is being protected from spambots. You need JavaScript enabled to view it.¹

¹Department of Civil Engineering, Tamkang University, Tamsui, Taiwan 251, R.O.C.

Received: February 21, 2005
Accepted: April 11, 2005
Publication Date: December 1, 2005

Download Citation: ||https://doi.org/10.6180/jase.2005.8.4.08

ABSTRACT

In this paper, the experimental investigation to systematically calibrate the basic properties of tuned liquid column damper (TLCD) is conducted. Under harmonic excitation, the exact solution of the liquid response in TLCD is firstly derived and it is used in the experimental calibration. Both the free vibration and harmonic forced vibration tests via shake table are performed to obtain the experimental results for calibration. Consequently, an empirical formula to predict head loss coefficients for TLCD is constructed and proposed as a quick reference for designers. The experimental investigation also confirms the fact that the size of liquid mass and the difference of the ratio of horizontal column length versus total column length have no effect on the natural frequency and head loss as well.

Keywords: Tuned Liquid Column Damper, Head Loss Coefficient, Shake Table Tests

REFERENCES

[1] Sakai, F., Takaeda, S. and Tamaki, T., “Tuned Liquid Column Damper-New Type Device for Suppression of Building Vibration,” Proc. International Conference on High-rise Building, Nanjing, China, pp. 926931 (1989).
[2] Xu, Y. L., Samali, B. and Kwok, K. C. S., “Control of Along-wind Response of Structures by Mass and Liquid Dampers,” ASCE J. of Engineering Mechanics, Vol. 118, pp. 2039 (1992).
[3] Gao, H., Kwok, K. C. S. and Samali, B., “Optimization of Tuned Liquid Column Dampers,” Engineering Structures, Vol. 19, pp. 476486 (1997).
[4] Balendra, T., Wang, C. M. and Rakesh, G., “Effectiveness of TLCD on Various Structural Systems,” Engineering Structures, Vol. 21, pp. 291305 (1998).
[5] Balendra, T. and Wang and Rakesh, G., “Vibration Control of Various Types of Buildings Using TLCD,” Journal of Wind Engineering and Industrial Aerodynamics, Vol. 83, pp. 197208 (1999).
[6] Chang, C. C. and Hsu, C. T., “Control Performance of Liquid Column Vibration Absorbers,” Engieering Structures, Vol. 20, pp. 580586 (1998).
[7] Chang, C. C., “Mass Dampers and Their Optimal Designs for Building Vibration Control,” Engieering Structures, Vol. 21, pp. 454463 (1999).