1554. Influence of friction variability on isolation performance of a rolling‑damper isolation system

Biao Wei1, Tianhan Yang2, Lizhong Jiang3

School of Civil Engineering, Central South University, Changsha, 410075, China

National Engineering Laboratory for High Speed Railway Construction, Changsha, 410004, China

1Corresponding author

E-mail: 1weibiao@csu.edu.cn, 2weibiaosss521@163.com, 3lzhjiang@csu.edu.cn

(Received 14 July 2014; received in revised form 2 September 2014; accepted 20 September 2014)

Abstract. Previously, many isolation systems with friction action are designed ignoring the variability of friction coefficient. By taking a rolling-damper isolation system as the study object, this paper analyzed the effects of non-uniform distribution of rolling friction coefficient on its isolation performance through a compiled computer program. The results show that the errors associated with the maximum structural relative displacement, acceleration and residual displacement due to ignoring the friction variability are sequentially growing, and this rule is weakened by the damper. Under the condition of large friction variability and little damper action, the calculation of the maximum structural relative displacement and acceleration should consider the friction variability. When the structural residual displacement is concerned, the variability of rolling friction coefficient should be fully considered regardless of friction variability degree.

Keywords: structure, isolation, rolling friction, damper, variability, seismic performance.


[1]        Yang M. G., Li C. Y., Chen Z. Q. A new simple non-linear hysteretic model for MR damper and verification of seismic response reduction experiment. Engineering Structures, Vol. 52, Issue 4, 2013, p. 434‑445.

[2]        Wei B. Study of the applicability of modal pushover analysis on irregular continuous bridges. Structural Engineering International, Vol. 21, Issue 2, 2011, p. 233‑237.

[3]        Wei B., Xia Y., Liu W. A. Lateral vibration analysis of continuous bridges utilizing equal displacement rule. Latin American Journal of Solids and Structures, Vol. 11, Issue 1, 2014, p. 75‑91.

[4]        Monfared H., Shirvani A., Nwaubani S. An investigation into the seismic base isolation from practical perspective. International Journal of Civil and Structural Engineering, Vol. 3, Issue 3, 2012, p. 451‑463.

[5]        Wei B., Dai G. L., Wen Y., Xia Y. Seismic performance of an isolation system of rolling friction with spring. Journal of Central South University, Vol. 21, Issue 4, 2014, p. 1518‑1525.

[6]        Jangid R. S., Londhe Y. B. Effectiveness of elliptical rolling rods for base isolation. Journal of Structural Engineering, Vol. 124, Issue 4, 1998, p. 469‑472.

[7]        Jangid R. S. Stochastic seismic response of structures isolated by rolling rods. Engineering Structures, Vol. 22, Issue 8, 2000, p. 937‑946.

[8]        Ou Y. C., Song J. W., Lee G. C. A parametric study of seismic behavior of roller seismic isolation bearings for highway bridges. Earthquake Engineering and Structure Dynamics, Vol. 39, Issue 5, 2010, p. 541‑559.

[9]        Lee G. C., Ou Y. C., Niu T. C., Song J. W., Liang Z. Characterization of a roller seismic isolation bearing with supplemental energy dissipation for highway bridges. Journal of Structural Engineering, Vol. 136, Issue 5, 2010, p. 502‑510.

[10]     Guerreiro L., Azevedo J., Muhr A. H. Seismic tests and numerical modeling of a rolling-ball isolation system. Journal of Earthquake Engineering, Vol. 11, Issue 1, 2007, p. 49‑66.

[11]     Kurita K., Aoki S., Nakanishi Y., Tominaga K., Kanazawa M. Fundamental characteristics of reduction system for seismic response using friction force. Journal of Civil Engineering and Architecture, Vol. 5, Issue 11, 2011, p. 1042‑1047.

[12]     Nanda R. P., Agarwal P., Shrikhande M. Base isolation system suitable for masonry buildings. Asian Journal of Civil Engineering, Building and Housing, Vol. 13, Issue 2, 2012, p. 195‑202.

[13]     Wei B., Cui R. B., Dai G. L. Seismic performance of a rolling-damper isolation system. Journal of Vibroengineering, Vol. 15, Issue 3, 2013, p. 1504‑1512.

[14]     Wang Y. J., Wei Q. C., Shi J., Long X. Y. Resonance characteristics of two-span continuous beam under moving high speed trains. Latin American Journal of Solids and Structures, Vol. 7, Issue 2, 2010, p. 185‑199.

[15]     Harvey P. S., Gavin H. P. Double rolling isolation systems: a mathematical model and experimental validation. International Journal of Non-Linear Mechanics, Vol. 61, Issue 1, 2014, p. 80‑92.

[16]     Standard of the Ministry of Communications of P. R. China. JTJ004-89 Specifications of Earthquake Resistant Design for Highway Engineering. China Communications Press, Beijing, 1989, (in Chinese).

[17]     Fahjan Y., Ozdemir Z. Scaling of earthquake accelerograms for non-linear dynamic analysis to match the earthquake design spectra. The 14th World Conference on Earthquake Engineering, Chinese Society for Earthquake Engineering, 2008.

Cite this article

Wei Biao, Yang Tianhan, Jiang Lizhong Influence of friction variability on isolation performance of a rolling‑damper isolation system. Journal of Vibroengineering, Vol. 17, Issue 2, 2015, p. 792‑801.


JVE International Ltd. Journal of Vibroengineering. Mar 2015, Volume 17, Issue 2. ISSN 1392-8716