000021763 001__ 21763
000021763 005__ 20170622131303.0
000021763 04107 $$aeng
000021763 046__ $$k2017-06-15
000021763 100__ $$aVecchio, Ciro Del
000021763 24500 $$aVALIDATION OF REFINED NUMERICAL MODELING FOR EXISTING RC BUILDINGS: COMPARISON BETWEEN PREDICTED AND OBSERVED EARTHQUAKE DAMAGE

000021763 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021763 260__ $$bNational Technical University of Athens, 2017
000021763 506__ $$arestricted
000021763 520__ $$2eng$$aA reliable estimation of the seismic performances of existing reinforced concrete building is of paramount importance to design proper retrofit solutions. Number of refined numerical models are nowadays available, nevertheless predicting the seismic performance and the earthquake damage at component level is still a challenging task. Marked nonlinear phenomena, strength and stiffness degradation and pinching affect the cyclic behavior of structural members designed with reinforcement details non-conforming with current seismic codes. This, along with the interaction between the bare frame and the stiff infills, makes complex the reproduction of the global structural behavior. This study focuses on a refined modeling procedure properly developed for existing RC frames. The modeling assumptions, the hysteresis assigned to the different building components and the modeling strategy accounting for the infill contribution are presented and discussed. The model validation at component and building level related to case-study buildings damaged by the L’Aquila (2009) earthquake is presented. A component-by-component comparison between predicted and observed damage is shown. The proposed numerical model and the in-depth discussion on the earthquake damage are useful to identify the building weaknesses, estimate the repair costs and design proper retrofit solutions.

000021763 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021763 653__ $$aNumerical modeling, earthquake damage, non-linear behavior, RC structures, infill wall, beam-column joints.

000021763 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021763 720__ $$aVecchio, Ciro Del$$iProta, Andrea$$iPampanin, Stefano$$iLudovico, Marco Di
000021763 8560_ $$ffischerc@itam.cas.cz
000021763 8564_ $$s1327912$$uhttps://invenio.itam.cas.cz/record/21763/files/17852.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS29] Repair and Retrofit of Structures
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000021763 962__ $$r21500
000021763 980__ $$aPAPER