000022152 001__ 22152
000022152 005__ 20170622145959.0
000022152 04107 $$aeng
000022152 046__ $$k2015-05-25
000022152 100__ $$aRisi, Maria Teresa De
000022152 24500 $$aINFLUENCE OF JOINT RESPONSE IN THE ASSESSMENT OF SEISMIC PERFORMANCE OF EXISTING REINFORCED CONCRETE FRAMES

000022152 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022152 260__ $$bNational Technical University of Athens, 2015
000022152 506__ $$arestricted
000022152 520__ $$2eng$$aIn the seismic performance assessment of existing Reinforced Concrete buildings, non-ductile failures related to beam-column joint regions can represent a critical issue. Therefore, within the context of Performance-Based Earthquake Engineering, a growing attention should be addressed to the behavior of these non-ductile elements, starting from the classification of their failure typology. In particular, in typical existing buildings, seismic performance might be significantly affected by the non-linear behavior of joints which are involved in the failure mechanisms because of poor structural detailing (e.g. lack of an adequate transverse reinforcement in joint panel, deficiencies in the anchorage or absence of any capacity design principle). Nevertheless, conventional modeling approaches consider only beam and column flexibility, although joints can provide a great contribution to the global deformability. In this study, a numerical investigation on the influence of joint response on the seismic behavior of a case study RC frame – designed for seismic loads according to an obsolete technical code – is performed. A preliminary classification of joint failure typology of the elements within the frames and the definition of the corresponding nonlinear behavior are carried out. Structural models that explicitly include beam-column joints are built. A probabilistic assessment based on nonlinear dynamic simulations of structural behavior is performed to evaluate the seismic response at different performance levels. Uncertainty in seismic ground-motion is accounted for.

000022152 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022152 653__ $$aEarthquake Engineering, Seismic Performance, Reinforced Concrete Frames, Beam-Column Joints.

000022152 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022152 720__ $$aRisi, Maria Teresa De$$iVerderame, Gerardo Mario$$iRicci, Paolo
000022152 8560_ $$ffischerc@itam.cas.cz
000022152 8564_ $$s1752287$$uhttps://invenio.itam.cas.cz/record/22152/files/C1340.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022152 962__ $$r22030
000022152 980__ $$aPAPER