TY - EJOU AU - Yoda, T. AU - Kodama, N. TI - Nonlinear Dynamic Response Analysis of Steel Frames under Seismic Action T2 - Computer Modeling in Engineering \& Sciences PY - 2006 VL - 11 IS - 1 SN - 1526-1506 AB - A nonlinear dynamic response analysis of a box section steel rigid frame under seismic action is proposed on the basis of a beam model. The average stress-strain relation of the beam model can be formulated for transverse stiffener spacing, in which stress-strain relation after local buckling is assumed. As a result of the present study, the maximum lateral displacements and the residual displacements of a box section steel rigid frame were well estimated by the proposed beam element model that considers the deterioration effect due to local buckling. KW - Nonlinear dynamic analysis KW - Steel frame KW - Seismic DO - 10.3970/cmes.2006.011.001