000021522 001__ 21522
000021522 005__ 20170622131250.0
000021522 04107 $$aeng
000021522 046__ $$k2017-06-15
000021522 100__ $$aCastaldo, Paolo
000021522 24500 $$aSEISMIC RELIABILITY-BASED DESIGN OF INELASTIC STRUCTURES WITH DIFFERENT VALUES OF THE POST-YIELDING STIFFNESS ISOLATED BY FPS

000021522 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021522 260__ $$bNational Technical University of Athens, 2017
000021522 506__ $$arestricted
000021522 520__ $$2eng$$aThis work aims to evaluate the seismic reliability of nonlinear systems, considering both a hardening and softening post-yielding behavior, isolated by friction pendulum devices (FPS) for different values of the strength reduction factor. The isolated structure is described through an equivalent 2dof model, whereas, the FPS behavior is described by a velocity dependent model. An extensive parametric study is carried out encompassing a wide range of inelastic building properties considering different values of the post-yielding stiffness, different seismic intensity levels and considering the friction coefficient as a random variable. Defined a set of natural seismic records and scaled to the seismic intensity corresponding to life safety limit state for L’Aquila site (Italy) according to NTC08, the yielding characteristics of the superstructures are consequently designed according to NTC08 for different values of the strength reduction factor. Incremental dynamic analyses (IDA) are developed to evaluate the seismic fragility curves of both the inelastic superstructure and the isolation level assuming different values of the corresponding limit states. Integrating the fragility curves with the seismic hazard curves related to L’Aquila site (Italy), the reliability curves of the inelastic base-isolated structural systems, with a design life of 50 years, are derived and proposed in order to provide useful design recommendations depending on both the strength reduction factors and post-yielding behavior.

000021522 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021522 653__ $$aseismic isolation; friction coefficient; seismic reliability; ductility demand; behaviour factor; post-yield stiffness..

000021522 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021522 720__ $$aCastaldo, Paolo$$iPalumbo, Mario Francesco$$iAlfano, Gaetano$$iPalazzo, Bruno
000021522 8560_ $$ffischerc@itam.cas.cz
000021522 8564_ $$s943689$$uhttps://invenio.itam.cas.cz/record/21522/files/16852.pdf$$yOriginal version of the author's contribution as presented on CD, section: [RS15] Performance-based earthquake engineering
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000021522 962__ $$r21500
000021522 980__ $$aPAPER