000010987 001__ 10987
000010987 005__ 20141205155824.0
000010987 04107 $$aeng
000010987 046__ $$k2008-10-12
000010987 100__ $$aMirghaderi, R.
000010987 24500 $$aStudy of Seismic Behavior of SCBF with "Balanced Bracing"

000010987 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010987 260__ $$b
000010987 506__ $$arestricted
000010987 520__ $$2eng$$aBracing members in concentrically braced frames are specially designed to undergo plastic deformations and dissipate hysteretic energy through successive cycles of inelastic buckling in compression and yielding in tension while force controlled elements, such as beams, columns and connections should remain elastic to ensure the gravity load resistance of the frame. Design of a brace for buckling usually requires bigger sections than tension, while due to tension action of brace, the connections and other members should be designed for tensile strength of brace element. In chevron braced frames, beams in bracing frame should possess adequate strength to resist the unbalanced vertical forces due to unequal axial capacity of braces in tension and compression. This result in very big size beams, much stronger than would be required for other brace configurations. This paper describes an innovative brace member, Balanced Bracings, which intend to decrease the difference between tensile and post-buckling strength of braces. To do so the idea of RBS (Reduced Beam Section) in moment resisting frames is implemented in concentrically braced frames. Decreasing steel area in a limited length and at a specific location will result in a reduction in tensile capacity of the brace while it’s buckling load and post buckling behavior is not affected significantly. Location and shapes of reduced area in brace are investigated by analytical studies that take into account the possibility of local buckling. The use of balanced bracing result in smaller unbalanced vertical forces on floor beams in chevron configuration, and also smaller design force for gusset plates.

000010987 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010987 653__ $$aSpecial Concentric Braced Frame, Buckling, Buckling Restraining System, Finite Element Analysis 

000010987 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010987 720__ $$aMirghaderi, R.$$iAhlehagh, S.
000010987 8560_ $$ffischerc@itam.cas.cz
000010987 8564_ $$s103915$$uhttps://invenio.itam.cas.cz/record/10987/files/05-05-0049.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-05-0049.
000010987 962__ $$r9324
000010987 980__ $$aPAPER