Seismic Behavior of Full‐Scale Concentrically Braced Steel Building Structure

The influence of beam stiffness on seismic response of chevron concentric bracings

“…Indeed, structures equipped with CCBs are generally characterized by large lateral stiffness, which guarantees the fulfilment of both codified drift limitations and stability criteria (namely P-Delta effects). On the other hand, the structural performance against strong seismic action involving large ductility demand is strongly dependent on the type of the developed plastic mechanism, which is deeply influenced by the behaviour of the beam of the braced span [1][2][3]. Depending on the strength of the brace-intercepted beam, two different failure modes can be achieved:…”

Seismic Behaviour of Full Scale Concentrically Braced Steel Building Structure

“…Before and after each major test of the research program vibration tests were performed on the structure, which will help in determining the damping of the structure and the frequencies or periods of the first several modes. After the final test it is observed that initially about 80% of the total shear is carried by the braces and about 20% by the moment resisting frames, in later stages in the tests the braces are severely buckled and about 60% of the lateral load is carried by the moment resisting frames [4].…”

Çapraz Konfigürasyonunun Merkezi Çaprazlı Çelik Çerçevelerin Tasarımına ve Dinamik Performansına Etkisi

“…Fukuta ve arkadaşları [11] ters V tipi çaprazlarda oluşan çelik çerçevelerin sismik performansını deneysel olarak araştırmışlar ve bu tip çaprazların yatay kesme kuvveti ile göreli kat ötelenme oranı ilişkisini gösteren basit bir histeritik model önermişlerdir. Yamanouchi ve arkadaşları [12] gerçek ölçekte K tipi çaprazlardan teşkil edilen MÇÇÇ sistemlerin yatay yük taşıma ve yer değiştirme kapasitelerini dinamik benzeri test tekniği ile incelemişlerdir. Tremblay [13] MÇÇÇ ile ilgili eleman ve sistem bazında gerçekleştirilen sayısal ve deneysel araştırmalar tasarım standartlarının gelişmesine katkıda bulunmuştur.…”