H形断面柱梁偏心接合部の局部降伏耐力

概要

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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.
社団法人日本建築学会の論文
2008-06-30