A modified single degree of freedom method for the analysis of building steel columns subjected to explosion induced blast load

In this paper, a modified approach to the single degree of freedom (SDOF) analysis method of axially loaded steel columns under blast load is presented and validated. The suggested method utilizes a new non-linear resistance function of steel columns under transverse blast load. The new resistance function was derived based on a quasi-static approximation of column behaviour taking into consideration the reduction in the column transverse...