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Analytical Simulations of the Steel-Laminated Elastomeric Bridge Bearing

Published online by Cambridge University Press:  06 June 2014

R.-Z. Wang ,
S.-K. Chen ,
K.-Y. Liu ,
C.-Y. Wang ,
K.-C. Chang  and
S.-H. Chen
R.-Z. Wang
Affiliation:
National Center for Research on Earthquake Engineering, Taipei, Taiwan, 10668, R.O.C.
S.-K. Chen
Affiliation:
Department of Civil Engineering, National Central University, Jhongli, Taiwan, 32001, R.O.C.
K.-Y. Liu*
Affiliation:
National Center for Research on Earthquake Engineering, Taipei, Taiwan, 10668, R.O.C.
C.-Y. Wang
Affiliation:
Department of Civil Engineering, National Central University, Jhongli, Taiwan, 32001, R.O.C.
K.-C. Chang
Affiliation:
Department of Civil Engineering, National Taiwan University, Taipei, Taiwan, 10617, R.O.C.
S.-H. Chen
Affiliation:
Department of Civil Engineering, National Central University, Jhongli, Taiwan, 32001, R.O.C.
*
*kyliu@narlabs.org.tw
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Abstract

In this paper, analytical simulations of the steel-laminated elastomeric bearing (SLEB) using a three-dimensional (3D) finite element model incorporating material, geometric nonlinearities, and a frictional contact algorithm in LS-DYNA code is conducted. In order to simulate the nonlinear responses of the elastomeric bearing under the compression and shear, a hyperviscoelastic rubber model such as The MAT_77_H (MAT_HYPERVISCOELASTIC_RUBBER) in LS- DYNA code is adopted. Based on the proposed material model for the SLEB, the interaction effects of the SLEB under compression, bending, and torsion are analyzed. Analytical results are compared with the test results of the SLEBs. A set of material parameters is proposed for 3D FEM analysis of SLEBs. The proposed material model demonstrates its accuracy.

Keywords

steel-laminated elastomeric bearingfrictional contactLS-DYNA
Type
Research Article
Information
Journal of Mechanics , Volume 30 , Issue 4 , August 2014 , pp. 373 - 382
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2014 

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