Abstract
In this study, a finite element code for the collapse analysis of steel frame under seismic loads using ASI-Gauss technique is produced. The technique is a modified version of the formerly developed Adaptively Shifted Integration (ASI) technique for the linear Timoshenko beam element. Several analyses on the elasto-plastic behaviors of two small steel frames under seismic loads (JMA-Kobe) are conducted. The calculated results certify the validity of the proposed analytical method.