000021589 001__ 21589
000021589 005__ 20170622131253.0
000021589 04107 $$aeng
000021589 046__ $$k2017-06-15
000021589 100__ $$aMiano, Andrea
000021589 24500 $$aPERFORMANCE-BASED COMPARISON OF DIFFERENT RETROFIT METHODS FOR REINFORCED CONCRETE SRUCTURES

000021589 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021589 260__ $$bNational Technical University of Athens, 2017
000021589 506__ $$arestricted
000021589 520__ $$2eng$$aRecent devastating earthquakes around the world have shown the vulnerability and deficiencies of existing reinforced concrete (RC) frame structures. In particular, recent research on seismic risk analysis have highlighted that nonductile concrete frame structures are much more susceptible to collapse than modern code-conforming frames. Therefore, for this type of structures, it is necessary to accurately model materials and members to capture the flexure, shear and flexure-shear failure modes in members and the potential collapse of the structure. In this paper, alternative retrofit methods are evaluated for these older frame buildings using a nonlinear structural performance assessment methodology. As a case study, the longitudinal frame of an existing building is modeled, including the effect of flexural-shearaxial load interaction and the bar slip deformational component in order to be able to capture column shear and axial failures. A probability-based framework is implemented in order to assess the structural performance and safety at each chosen performance level. This study shows that it is crucial to choose the most effective retrofit strategy based on the assessed performance of the bare frame.

000021589 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021589 653__ $$aPerformance-based seismic assessment, Seismic retrofit of RC structures, Nonlinear dynamic analysis methods, Flexural-shear-axial load interaction, Bar slip model.

000021589 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021589 720__ $$aMiano, Andrea$$iProta, Andrea$$iJalayer, Fatemeh$$iSezen, Halil
000021589 8560_ $$ffischerc@itam.cas.cz
000021589 8564_ $$s879310$$uhttp://invenio.itam.cas.cz/record/21589/files/17150.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS18] Modeling the Nonlinear Behavior of Structures
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000021589 962__ $$r21500
000021589 980__ $$aPAPER