Title of article :
Numerical study on the behavior of link-to-column connections in eccentrically braced frames
Author/Authors :
Danesh, Fakhredin Civil Engineering Department - K.N. Toosi University of Technology, Tehran Iran , Faridalam, Mohammad ali Civil Engineering Department - K.N. Toosi University of Technology, Tehran Iran
Abstract :
Geometry of eccentrically braced frames (EBFs) in some cases causes the
connection of link beam to the column. The details of such conditions should be studied
carefully due to the full plastic rotation in the link beam. In this research, the behavior
of link-to-column connection is modeled and the failure modes are considered. Based
on the previous researches shear link can exhibit better behavior in such conditions.
However, different models are designed and analyzed using finite element method to
investigate the influence of short, medium and long link beams on the failure modes of
the connections. Two types of connections are applied in designing these models. The
results show that models with access hole in connection details are failed before
achieving 50% full plastic rotation in the link beams. Besides, in the connections
without access hole, the link beams behave as ductile elements and experience up to
90% full plastic rotation that are recommended by the codes.
Keywords :
Seismic Design , Connection , Eccentrically Braced Frames
Journal title :
Astroparticle Physics
