Isolation Effect Research about RFPS Seismic Isolating System on Bridges

Hai Bin Chen; Nan Ge

doi:10.4028/www.scientific.net/AMR.662.683

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 662Isolation Effect Research about RFPS Seismic...

Isolation Effect Research about RFPS Seismic Isolating System on Bridges

Abstract:

A balance equation was established for RFPS which in the general position, it derived from Alembert's principle and Static theory. Then make a bridge structure with RFPS bearings as an example calculated the dynamic response equation of the isolation system that under the action of earthquake. The solving program which based on MATLAB program was presented with Newmark–β time-history analysis method. Analysis and calculation results show that the isolation effect of RFPS bearings was very evident. Make an appropriate selection on slide radius and the rolling friction coefficient values can make the internal forces (shear forces) for piers exhibit a significant reduction to a great extent. Besides, the drift of longitudinal beam in horizontal direction and vertical direction would be both in the reasonable bounds.

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Periodical:

Advanced Materials Research (Volume 662)

Pages:

683-687

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.662.683

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Online since:

February 2013

Authors:

Hai Bin Chen, Nan Ge

Keywords:

Friction Factor, Lagrange Equation, Newmark- Method, RFPS, Slide Radius

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