Author/Authors :
alçiçek, haluk emre istanbul technical university - faculty of civil engineering, İstanbul, turkey , karasu, adem istanbul technical university - faculty of civil engineering, İstanbul, Turkey , vatansever, cüneyt istanbul technical university - faculty of civil engineering, İstanbul, Turkey
Abstract :
In eccentirally-braced frames (EBFs), link-to-column connections and the structural elements outside of the links must resist the internal forces generated by fully yielded and strain-hardened links. Using slotted perforated web section concept in shear link may help to prevent difficulty in design of link-to-column connections and all other frame members by limiting the link capacity without loss of its stability. For this, a shear link beam with a section of W10×33 was selected and three different slot hole pattern were generated in its web to form three different specimens. Finite element models of these specimens were developed using ABAQUS software. Material of link beam was ASTM A992 steel. A series of analyses were performed under quasi-static cyclic loading to study the behavior of link beam with reduced web section. 10.6% of area reduction in the web section with different hole arrangements were investigated and the effect of slotted perforated web on shear links was examined. Finite element analyses have revealed that equally spaced 6×4mm slots in the web had stable hysteresis behavior whereas strength degredation was occured when equally spaced 3×8mm slots were used in the web. The results of this study indicate that using high number of slot holes may help to limit forces transmitting to the link-to-column connections and all other frame members.
