000015688 001__ 15688
000015688 005__ 20161115135326.0
000015688 04107 $$aeng
000015688 046__ $$k2013-06-12
000015688 100__ $$aPapavasileiou, G.
000015688 24500 $$aComparative Assessment of Buildings With Pure Steel Or Steel-Concrete Composite Columns Using Structural Design Optimization

000015688 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015688 260__ $$bNational Technical University of Athens, 2013
000015688 506__ $$arestricted
000015688 520__ $$2eng$$aThe present work investigates the cost-effectiveness of fully encased composite columns and concrete filled tubes as an alternative to pure steel I-shaped columns. In order to achieve objectiveness in the comparison of the three methods, the designs assessed are obtained by a structural optimization procedure. Thus, any subjectivity which would result from the designer’s experience is avoided. The Evolution Strategies optimization algorithm is employed to minimize structural cost subject to constraints associated with: (a) Eurocode 4 provisions for safety of composite column-members, (b) Eurocode 3 provisions for safety of steel structural members and (c) structural system resistance. Furthermore, the assessment is performed for a variety of seismic intensities, as it provides important information on the ability of each method to meet high performance criteria and the total cost increase such requirements would lead to. The results obtained provide an insight to the advantages of partially substituting steel as a main structural material with concrete, in composite column sections, and demonstrate the effectiveness of the proposed optimization approach.

000015688 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015688 653__ $$aComposite steel-concrete, structural optimization, seismic design

000015688 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015688 720__ $$aPapavasileiou, G.$$iNikolaou, N.$$iCharmpis, D.
000015688 8560_ $$ffischerc@itam.cas.cz
000015688 8564_ $$s152576$$uhttps://invenio.itam.cas.cz/record/15688/files/1264.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-RS 31 STEEL STRUCTURES
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000015688 962__ $$r15525
000015688 980__ $$aPAPER