An investigation on the seismic behavior of bridges isolated with DCFP devices

The Seismic isolation of bridges has greatly enhanced during the last decades. The scope of the paper is carrying out an investigation on how the properties of the double concave friction pendulum (DCFP) devices influence the seismic performance of isolated multi-span continuous deck bridges. The nu...

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Bibliographic Details
Main Author: Amendola, Guglielmo
Format: Conference Proceeding
Language:English
Subjects:
Bridge decks
Continuous bridges
Elasticity
Isolators
Mathematical models
Pendulums
Seismic isolation
Seismic response
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Summary:The Seismic isolation of bridges has greatly enhanced during the last decades. The scope of the paper is carrying out an investigation on how the properties of the double concave friction pendulum (DCFP) devices influence the seismic performance of isolated multi-span continuous deck bridges. The numerical simulations are performed conceived an eight-degree-of-freedom model able to reproduce the elastic behavior of the pier, along with the assumption of both rigid abutment and rigid deck; furthermore, according with experimental evidences, a non-linear velocity-dependent behavior has been adopted for the two surfaces of the double concave friction pendulum isolators. The model has been conceived withstand a set of natural records with different characteristics. The work comes out with the statistics related to the relevant response parameters are computed in non-dimensional form with respect to the seismic intensity considering different properties of both DCFP isolators and bridge.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0170614