000013805 001__ 13805
000013805 005__ 20161114170357.0
000013805 04107 $$aeng
000013805 046__ $$k2011-05-25
000013805 100__ $$aPapavasileiou, G.
000013805 24500 $$aOptimized Seismic Retrofit of Steel-Concrete Composite Frames

000013805 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013805 260__ $$bNational Technical University of Athens, 2011
000013805 506__ $$arestricted
000013805 520__ $$2eng$$aThe present paper investigates the optimum way of reinforcing existing composite steel-concrete structures that violate the criteria suggested in Eurocode 4. The motivation to conduct the specific research is the need for existing structures to conform to new regulations without extensive operations. Composite steel-concrete systems are an attractive construction method, since they have been found to be cost-effective, especially for multi-storey buildings, and also successfully take advantage of the high stiffness of steel without its vulnerability to fire. These structural systems are not new and have been used since the beginning of the 20th century, so there is a number of existing structures which have been designed with previous versions of structural codes and have to conform to the modern regulations. It is obvious that each new set of design codes takes into account new dangers that might occur and updates the design methods already used. On the other hand, the economic considerations which have to be taken into account and the high market competition force the engineers to seek solutions that are at the same time easily and rapidly constructed, but also yield the required performance with the minimum cost. The present work presents two retrofit methods for composite steel-concrete frames, which are evaluated in the context of structural optimization. The frames considered fail to satisfy the provisions of Eurocode 4 and are therefore retrofitted with the two aforementioned methods in a way minimizing the total cost of steel and concrete required for the retrofit. This way, the frames are upgraded with minimal cost.

000013805 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013805 653__ $$aComposite, steel, concrete, retrofit, seismic, optimization.

000013805 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013805 720__ $$aPapavasileiou, G.$$iCharmpis, D.$$iLagaros, N.
000013805 8560_ $$ffischerc@itam.cas.cz
000013805 8564_ $$s467365$$uhttps://invenio.itam.cas.cz/record/13805/files/697.pdf$$yOriginal version of the author's contribution as presented on CD, section: RS 20 Steel Structures.
000013805 962__ $$r13401
000013805 980__ $$aPAPER