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Evaluation of wind load integration in disproportionate collapse analysis of steel moment frames for column loss

For first time the effect of wind loading in the response of steel moment frames for the event of a column loss was analyzed. The absence of wind in load combinations recommended in guidelines regarding progressive collapse can be either a conservative approach or not, depending on the structural system; this problem is addressed in this paper. The work applied time history analysis, while the alternate load path of the current guidelines was loosely followed for the load combinations of the structure, incorporating wind loading which is absent by relevant documents describing progressive collapse analysis.