000011675 001__ 11675
000011675 005__ 20141205155935.0
000011675 04107 $$aeng
000011675 046__ $$k2008-10-12
000011675 100__ $$aSigmund, Vladimir
000011675 24500 $$aBase Shear Redistribution Between the R/C Dual System Structural Components

000011675 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011675 260__ $$b
000011675 506__ $$arestricted
000011675 520__ $$2eng$$aThe experience provided by the recent earthquakes showed that buildings with structural walls have had satisfactory performance for collapse prevention. Conversely, some of the dual system buildings (wall frame) were rated as severely damaged therefore implying an urgent need for strength assignments redefinition between the structural components. The elastic response of dual buildings is mainly governed by the wall response and the frame contribution could be neglected (bellow 15% of the base shear what makes them a secondary member). In the inelastic range the situation could drastically change and frame contribution increases (even up to the 50%) but these elements are then under-designed and not capable to carry the increased load. A set of dual building structures were selected, designed and analyzed. The model buildings were 4, 7 and 10 stories high with two frames and one wall-frame in longitudinal and four frames in the transverse direction. Column dimension varied thus causing stiffness and strength redistribution among the wall and frame, in elastic and inelastic range. Seismic analysis including elastic, nonlinear static (push-over) and nonlinear dynamic analysis have been done. Observed were base shear distribution, displacement and ductility demands of the wall and frames through system degradation. The results have shown that wall contribution diminishes as deformations are increasing and its share could go up to almost 50% what required high ductility of the frame elements. That they do not have if they were originally designed as “secondary” seismic elements according to the material Eurocodes.

000011675 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011675 653__ $$ar/c dual system, Eurocodes, earthquake, primary and secondary seismic elements 

000011675 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011675 720__ $$aSigmund, Vladimir$$iGuljas, Ivica$$iHadzima-Nyarko, Marijana
000011675 8560_ $$ffischerc@itam.cas.cz
000011675 8564_ $$s234600$$uhttps://invenio.itam.cas.cz/record/11675/files/08-01-0012.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 08-01-0012.
000011675 962__ $$r9324
000011675 980__ $$aPAPER