000015929 001__ 15929
000015929 005__ 20161115135333.0
000015929 04107 $$aeng
000015929 046__ $$k2013-06-12
000015929 100__ $$aMagliulo, G.
000015929 24500 $$aNon Linear Static Analysis of a Plan Irregular Building According To Ec8 Provisions

000015929 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015929 260__ $$bNational Technical University of Athens, 2013
000015929 506__ $$arestricted
000015929 520__ $$2eng$$aThe paper deals with the topic of nonlinear static and nonlinear dynamic analyses of multi-storey r/c frame buildings designed according to Eurocode provisions. In particular, the open problem of the extension of N2 method to plan irregular buildings, which makes up for the underestimation of the seismic demand on stiff side of the buildings, is focused. Three methods, which take into account the accidental eccentricity of the mass (due to its uncertainties in the location) are proposed. The main differences between the three nonlinear static analysis methods are: method n.1 combines the displacements of modal response spectrum analysis obtained by the 4 models (associate to 4 positions of the centre mass) by SRSS rule and, for each frame of the multi-storey r/c frame building, the maximum normalized displacement is assumed as reference; method n.2, works on 4 models and only at the end of the procedure combines the results by SRSS rule; method n.3 considers till the end of the procedure the double sign (+ and -) of pushovers. Nonlinear static analyses are carried out using both the “modal” and “uniform” force pattern. The “orthogonal effects”, evaluated by SRSS rule, result to be negligible. The results, in terms of pushover curves, frame top displacements and interstory drifts, are compared with the ones obtained by nonlinear dynamic time-history analyses. The input adopted for nonlinear dynamic analysis (7 natural earthquakes) is selected in order to rigorously satisfy the EC8 provisions.

000015929 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015929 653__ $$aNonlinear analysis, torsional effects, natural records, r/c frame building, plan irregular building.

000015929 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015929 720__ $$aMagliulo, G.$$iMaddaloni, G.$$iCosenza, E.
000015929 8560_ $$ffischerc@itam.cas.cz
000015929 8564_ $$s427546$$uhttps://invenio.itam.cas.cz/record/15929/files/1719.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-RS 14 OPTIMUM DESIGN IN STRUCTURAL DYNAMICS AND EARTHQUAKE ENGINEERING
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000015929 962__ $$r15525
000015929 980__ $$aPAPER