000022338 001__ 22338
000022338 005__ 20170622150008.0
000022338 04107 $$aeng
000022338 046__ $$k2015-05-25
000022338 100__ $$aGharakhanloo, Armin
000022338 24500 $$aDISTRIBUTED AND CONCENTRATED INELASTICITY BEAM-COLUMN ELEMENTS: APPLICATION TO REINFORCED CONCRETE FRAMES AND VERIFICATION

000022338 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022338 260__ $$bNational Technical University of Athens, 2015
000022338 506__ $$arestricted
000022338 520__ $$2eng$$aInelastic beam elements are widely used in the analysis of structures subjected to seismic actions. These elements are capable of describing the linear and nonlinear forcedisplacement and moment-rotation response of beams, columns and shear walls. However, there are numerical inaccuracies associated with these element formulations, as well as differences in computational effort. In this paper, the fundamentals of displacement-based and force-based elements are briefly presented, with emphasis on localization issues due to strain softening, and regularization procedures necessary to achieve convergence to single solutions. The modelling criteria regarding the number of integration points, the number of elements in each member and the length of the prescribed plastic hinges are also discussed. A one-story reinforced concrete frame, representing industrial buildings, has been modelled in a finite element software with the objective of studying the efficiency of three element types: displacement- and force-based distributed plasticity elements and concentrated plasticity ones. The running times of the analyses confirm that the computational demand of models with displacement-based elements is larger than that of models with force-based elements. Analysis results have then been compared to the experimental values obtained from a series of pseudo-dynamic tests performed with increasing seismic intensity. All element formulations showed very good approximation of the global response. Overall, force-based and plastic hinge models performed slightly better than the displacement-based model.

000022338 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022338 653__ $$aInelasticity, beam-column, displacement-based element, force-based element, discretization, earthquake engineering.

000022338 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022338 720__ $$aGharakhanloo, Armin$$iTsionis, Gergios$$iKaynia, Amir M.
000022338 8560_ $$ffischerc@itam.cas.cz
000022338 8564_ $$s1110130$$uhttps://invenio.itam.cas.cz/record/22338/files/C506.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022338 962__ $$r22030
000022338 980__ $$aPAPER