Abstract
Extensive researches have been conducted on the application of eccentric beam-to-column connections in the steel frames composed of square tubular columns. For eccentric beam-to-wide-flange column connections, fewer efforts have been made in the past. This paper presents the local yield strength of the eccentric beam-to-wide-flange column connections. For the connection stiffening, both transverse stiffeners and vertical stiffeners are employed. By applying the yield line theory, strength formulae of the beam flange-to-column connections are derived for five different types of collapse mechanisms. Six loading tests are performed for the local connection models to examine the elastic-plastic behavior of the connections with eccentricity. The measured strain distributions and the residual flange deformations confirm the validity of the collapse mechanism including beam-flange rotation.
