Mejora del comportamiento dinámico de puentes de ferrocarril mediante reaccionamiento con amortiguadores fluido-viscosos
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comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
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INVESTIGACIONMetadata
Title
Mejora del comportamiento dinámico de puentes de ferrocarril mediante reaccionamiento con amortiguadores fluido-viscososDate
2012Publisher
Fundación de los Ferrocarriles Españoles ·ISSN
1134-1416Type
info:eu-repo/semantics/articleSubject
Abstract
This research work is devoted to the problem of excessive vertical vibrations
that short to medium-span railway bridges may experiment due to resonance phenomena. A
new alternative based on externally increasing the ... [+]
This research work is devoted to the problem of excessive vertical vibrations
that short to medium-span railway bridges may experiment due to resonance phenomena. A
new alternative based on externally increasing the overall damping of the structure by
retrofitting the deck with fluid-viscous dampers is proposed in order to reduce detrimental
levels of transverse acceleration to admissible ones. This solution could substitute a classical
strengthening process or even the complete demolition and replacement of the deck in
existing structures under new traffic requirements such as an increase in the speed of the
line. A particular configuration of the retrofitting system is proposed which allows the
transformation of the vertical oscillations that the deck experiments under the circulation of
the railway vehicles into elongation rates of the devices, leading to energy dissipation and
the subsequent reduction of the super-structure resonant response. The proposed system
could be installed in the original structure and maintained without interfering with everyday
traffic. [-]
Is part of
Vía libre, núm. 4, 2012Rights
© Vía Libre - Fundación de los Ferrocarriles Españoles ·
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
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- EMC_Articles [807]