Assessment of reinforcement concrete and composite steel-concrete columns to resist the effects of suitcase bombs

Abstract

The risks represented by suitcase bombs are of particular concern because they can be transported by hand and placed almost anywhere in close proximity with key structural components. Although suitcase bombs are relatively small in size, ranging from 5kg to 25kg, their effect on structural components may be severe. The most common failure mode of blast loads is progressive collapse. One of the most useful information that can aid in assessing if a structure would collapse is the residual axial strength of its columns.