The study of progressive collapse in dual systems

Abstract

Throughout this paper, progressive collapse of steel structure with dual system considering the removing column scenario is studied. Due to this objective, two lateral load resisting systems, are modeled in ABAQUS software with omitting various columns, and the performance of systems against progressive collapse are compared with each other. The results represent that whenever a structure is experiencing an unusual external load such as the collision of a vehicle, the most critical columns are those placed at the nearest external frame of the structure. Thus, these members should be considered as highly important members because they could play a significant role in progressive collapse potential reduction as key members.