Optimization of Large-Tonnage Lead Rubber Bearing for Highway Bridge

Abstract:

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A 10000kN lead rubber bearing is taken as an example to study the energy dissipation mode of isolated bridge and optimal lead rate of the bearing. Bilinear spring model considering the effect of real lead rate on the stiffness is used to simulate the bearing. Optimization of the lead rate in different site soil conditions and different axial compression ratio of pier is carried on by using nonlinear dynamic time history analysis. It is shown that the axial compression ratio of pier has great influence on the energy dissipation mode of isolated bridge and the optimal lead rate of the bearing. Site soil conditions have little effect on the energy dissipation mode of the isolation bridge and the optimal lead rate when the axial compression ratio of pier is fixed.

Info:

Periodical:

Edited by:

Dongye Sun, Wen-Pei Sung and Ran Chen

Pages:

3832-3836

DOI:

10.4028/www.scientific.net/AMM.71-78.3832

Citation:

G. H. Zhao et al., "Optimization of Large-Tonnage Lead Rubber Bearing for Highway Bridge", Applied Mechanics and Materials, Vols. 71-78, pp. 3832-3836, 2011

Online since:

July 2011

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Price:

$35.00

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