Failure Modes of Serially Isolated System under Large Deformation

Article Preview

Abstract:

This paper investigates the failure modes of serially connected isolation system that the rubber bearing connected with the basement column, under large deformation. Base on Haringx theory and Timoshenko beam modal, the geometrically non-linear equations of serially connected isolation system with one end clamped and the other glided, subjected to a terminal force, are formulated. By using differential quadrature element method (DQEM), the non-linear equations are solved numerically and the configurations of the deformed column are presented. The results show that the large deformation of serially connected isolation system mainly occurred in the rubber bearings. The buckling of rubber bearing is the main failure mode of the serially connected isolated system.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

30-35

Citation:

Online since:

October 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] A.N. Gent, Elastic stability of rubber compression springs, J. Mech. Engrg. 1964, 6(4) 318-326.

Google Scholar

[2] C. G. Koh, J. M. Kelly, A simple mechanical model for elastomeric isolation bearings. Int. J. Mech. Sci. 1988, 30(12) 933-943.

DOI: 10.1016/0020-7403(88)90075-6

Google Scholar

[3] S. Nagarajaiah, K. Ferrell, Stability of elastomeric seismic isolation bearings, J. Struct. Engrg. 1999, 125(9) 946-954.

DOI: 10.1061/(asce)0733-9445(1999)125:9(946)

Google Scholar

[4] I. G. Buckle, S. Nagarajaiah, and K. Ferrell, Stability of elastomeric seismic isolation bearings: experimental study, J. Struct. Engrg. 2002, 128(1) 3-11.

DOI: 10.1061/(asce)0733-9445(2002)128:1(3)

Google Scholar

[5] M. Iizuka, A macroscopic model for prediction large-deformation behaviors of laminated rubber bearings, J. Engrg. Struct. 22(2002) 323-334.

DOI: 10.1016/s0141-0296(98)00118-7

Google Scholar

[6] J. M. Kelly, Tension buckling in multilayer elastomeric bearings, J. Engrg. Mech. 2003, 129(12) 1363-1368.

DOI: 10.1061/(asce)0733-9399(2003)129:12(1363)

Google Scholar

[7] W. G. Liu, W. F. He, D. M. Feng and Q. R. Yang, Vertical stiffness and deformation analysis models of rubber isolators in compression and compression-shear states, J. Engrg. Mech. 2009, 135(9) 945-952.

DOI: 10.1061/(asce)em.1943-7889.0000010

Google Scholar

[8] F. L. Zhou, W. G. Liu et al. Mechanic characteristics of rubber bearings in column top isolation system, Proc. International workshop on seismic isolation, energy dissipation and control of structures. Guangzhou, Beijing: Seismological Press, 1999, 44-45.

Google Scholar

[9] X. Y. Zhou, M. Han et al. Horizontal rigidity coefficient of the serial system of rubber bearing with column. J. Vibration Engineering. 1999, 12(2) 157-165.

Google Scholar

[10] X. Y. Zhou, M. Han et al. Calculation method of lateral stiffness of combined rubber bearing and serial system of bearing with columns. J. Earthquake engineering and engineering vibration, 1999, 19(4) 67-75.

Google Scholar

[11] X. Y. Zhou, D. H. Ma et al. A formula for horizontal stiffness of composited isolators, J. Civil engineering, 2000, 33(6) 38-44.

Google Scholar

[12] R. E. Bellman, J. Casti, Differential quadrature and long-term integration, J. Math. Anal. Appl., 34,(1971) 235-238.

DOI: 10.1016/0022-247x(71)90110-7

Google Scholar

[13] X. Wang and C. W. Bert, A New Approach in Applying Differential Quadrature to Static and Free Vibrational Analysis of Beams and Plates, J. Sound and Vibration, 162(1993)566-572.

DOI: 10.1006/jsvi.1993.1143

Google Scholar

[14] S. R. Li and L. L. Fan, Transient Dynamic Response of Timoshenko Beams under Thermal Shock, J. Vibration and Shock, 2008, 27(7) 122-126

Google Scholar

[15] O. Sepahi, M. R. Forouzan, P. Malekzadeh, Post-Buckling Analysis of Variable Cross-Section Cantilever Beams under Combined Load via Differential Quadrature Method, KSCE J. Civil Engrg., 2010, 14(2) 207- 214.

DOI: 10.1007/s12205-010-0207-4

Google Scholar