This paper evaluates the seismic reliability of steel structures, isolated using friction pendulum system, subjected to artificial earthquake ground motions. The behaviour of the steel superstructure is assumed linear whereas the FPS devices are described by adopting a velocity-dependent model. Both the seismic input, modelled as a non stationary random processes, and the friction coefficient at large velocity are considered as random variables through appropriate probability density functions. Incremental dynamic analyses are developed and then the fragility curves related to both superstructure and isolation level are evaluated. Finally, considering the seismic hazard curve related to a site near Sant’Angelo dei Lombardi (Italy), the seismic reliability of the overall steel system is evaluated.

Seismic reliability of steel structures isolated by fps / Castaldo, Paolo; Palazzo, Bruno; Amendola, Guglielmo; Alfano, Gaetano. - In: COSTRUZIONI METALLICHE. - ISSN 0010-9673. - STAMPA. - 2:(2017), pp. 84-91.

Seismic reliability of steel structures isolated by fps

CASTALDO, PAOLO;
2017

Abstract

This paper evaluates the seismic reliability of steel structures, isolated using friction pendulum system, subjected to artificial earthquake ground motions. The behaviour of the steel superstructure is assumed linear whereas the FPS devices are described by adopting a velocity-dependent model. Both the seismic input, modelled as a non stationary random processes, and the friction coefficient at large velocity are considered as random variables through appropriate probability density functions. Incremental dynamic analyses are developed and then the fragility curves related to both superstructure and isolation level are evaluated. Finally, considering the seismic hazard curve related to a site near Sant’Angelo dei Lombardi (Italy), the seismic reliability of the overall steel system is evaluated.
File in questo prodotto:
File Dimensione Formato  
00-00 Ricerca Castaldo CM 2-17_01.pdf

non disponibili

Tipologia: 1. Preprint / submitted version [pre- review]
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 873.85 kB
Formato Adobe PDF
873.85 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2683532
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo