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A direct displacement-based method for the seismic design of bridge on bi-linear isolation devices

Autor
Jara, M.; Casas, J.
Tipus d'activitat
Article en revista
Revista
Engineering structures
Data de publicació
2006-05
Volum
28
Número
6
Pàgina inicial
869
Pàgina final
879
DOI
https://doi.org/10.1016/j.engstruct.2005.10.016 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0141029605003846 Obrir en finestra nova
Resum
This paper presents an extension of the displacement-based design procedure for bridges supported on hysteretic isolation bearings. An equivalent damping ratio, derived from the particular characteristics of bridges supported on lead rubber bearings (LRBs), is proposed. The trend of the equivalent damping ratio that is obtained is similar to that of the hysteretic energy bearing dissipation, over the whole range of inelastic displacement demands that is expected for this type of device. The prop...
Paraules clau
Displacement based design, Effective stiffness, Equivalent damping ratio, Hysteretic isolators
Grup de recerca
EC - Enginyeria de la Construcció

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