000021760 001__ 21760
000021760 005__ 20170622131303.0
000021760 04107 $$aeng
000021760 046__ $$k2017-06-15
000021760 100__ $$aZimos, Dimitrios
000021760 24500 $$aA MODEL FOR NON-LINEAR DYNAMIC ANALYSIS OF SUB-STANDARD REINFORCED CONCRETE MEMBERS

000021760 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021760 260__ $$bNational Technical University of Athens, 2017
000021760 506__ $$arestricted
000021760 520__ $$2eng$$aReinforced concrete (R/C) buildings designed according to older seismic codes represent a large part of the existing building stock; hence, it is important to be able to accurately assess their response to seismic actions. These substandard R/C buildings may contain structural elements that are prone to shear failure subsequent, or even prior, to yielding of their longitudinal reinforcement. This can potentially lead to loss of axial load resistance of vertical elements and initiate vertical progressive collapse of the building. In the present study, a model is put forward, which is able to capture the hysteretic behaviour of shear critical R/C elements up to the onset of axial failure. The model is able to account for gradual spread of inelasticity and shear-flexure interaction in the locations of the plastic hinges prior to the onset of shear failure as well as localisation of shear strains after the onset of shear failure; the latter constitutes a major advancement in the existing literature. The model is used to predict the behaviour of a cyclically loaded double-curvature specimen failing axially after shear failure and flexural yielding. The comparison of the analytical with the experimental results shows a very good agreement, both in terms of total response and of shear response.

000021760 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021760 653__ $$aEarthquake Engineering, Reinforced Concrete, Hysteretic Behaviour, Postpeak Response, Shear Failure, Bearing Capacity.

000021760 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021760 720__ $$aZimos, Dimitrios$$iKappos, Andreas$$iMergos, Panagiotis
000021760 8560_ $$ffischerc@itam.cas.cz
000021760 8564_ $$s623284$$uhttps://invenio.itam.cas.cz/record/21760/files/17845.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS18] Modeling the Nonlinear Behavior of Structures
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000021760 962__ $$r21500
000021760 980__ $$aPAPER