000019297 001__ 19297
000019297 005__ 20170118182309.0
000019297 04107 $$aeng
000019297 046__ $$k2017-01-09
000019297 100__ $$aPalazzo, Bruno
000019297 24500 $$aSeismic Reliability of Base-Isolated Structural Systems Through Fps

000019297 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019297 260__ $$b
000019297 506__ $$arestricted
000019297 520__ $$2eng$$aThe paper deals with the seismic reliability of structural systems equipped with friction pendulum isolators (FPS). The behavior of these systems is analyzed by employing a two-degree-of-freedom model accounting for the superstructure flexibility, whereas the FPS isolator behaviour is described by adopting a widespread model which considers the variation of the friction coefficient with the velocity. The uncertainty in the seismic inputs is taken into account by employing a set of synthetic records, obtained through Monte Carlo simulations within the power spectral density method, with different characteristics depending on the soil dynamic parameters, and scaled to increasing intensity levels. The friction coefficient at large velocity is considered as random variable modeled through a uniform probability density function. Incremental dynamic analyses are developed in order to evaluate the probabilities exceeding different limit states related to both superstructure and isolation level defining the seismic fragility curves through an extensive parametric study carried out for different structural system properties. Finally, considering the seismic hazard curves related to L’Aquila site (Italy), the seismic reliability of the superstructure systems is evaluated as well as seismic reliability-based design (SRBD) abacuses are derived with the aim to design the radius in plan of the friction pendulum isolators in function of the structural system properties and the selected reliability level.

000019297 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019297 653__ $$aFP devices; power spectral density method; medium soil condition; seismic fragility; seismic reliability.

000019297 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019297 720__ $$aPalazzo, Bruno$$iAmendola, Guglielmo$$iCastaldo, Paolo
000019297 8560_ $$ffischerc@itam.cas.cz
000019297 8564_ $$s873706$$uhttps://invenio.itam.cas.cz/record/19297/files/3323.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3323.
000019297 962__ $$r16048
000019297 980__ $$aPAPER