Experimental study of residual displacements of double concave friction-pendulum isolation systems Residual displacements of friction pendulum isolation systems

ANTONIO DI, CESARE and DOMENICO, NIGRO and FELICE CARLO, PONZO and GIANMARCO, LECCESE (2016) Experimental study of residual displacements of double concave friction-pendulum isolation systems Residual displacements of friction pendulum isolation systems. In: Fifth International Conference On Advances in Civil, Structural and Mechanical Engineering -ACSM 2016, 25-26 September 2016, Bangkok, Thailand.

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Abstract

After an earthquake, non-negligible residual displacements can occur if the isolation system does not possess a good restoring capability. In this paper the residual displacement of friction pendulum isolation systems is investigated through an extensive experimental campaign of controlled-displacement and seismic input experiments, both under uni-directional motion. A sequence of natural earthquakes was applied in three different lubrication conditions of sliding surfaces, corresponding to High, Medium and Low Friction. In order to improve current design method of sliding isolation systems, a simple equation for the estimation of the maximum expected residual displacements is proposed and compared with the experimental results.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Seismic isolation, Double concave friction pendulum, Friction coefficient, Residual displacements, Shake table testing
Depositing User: Mr. John Steve
Date Deposited: 20 Mar 2019 12:07
Last Modified: 20 Mar 2019 12:07
URI: http://publications.theired.org/id/eprint/715

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