The Introduction of Progressive Collapse and Its Impact on the Stability of Steel Structures

Authors

1 Ph.D. Student, Islamic Azad University, Maragheh Branch, Maragheh, Iran

2 Assistant Professor, Faculty of Engineering, Department of Civil Engineering, University of Maragheh, East Azarbaijan, Iran

Abstract

Structural safety has always been key to designing civil engineering projects for engineers. One of the mechanisms in which the structure is defeated and has attracted considerable attention in decades is related to progressive destruction in which one or more structural members suddenly fail due to an accident or terrorist attack, etc. The building is progressively degraded. Progressive degradation is a relatively rare event in which unconventional loads cause local damage and the structure spreads due to the lack of continuity, ductility and indeterminacy of damage. In simple words, progressive failure in structures can be defined as a chain reaction in which, under a particular cause, local injury occurs in a relatively small area of ​​the structure and, in the event of this local injury, into other parts It extends from the structure and ultimately results in total failure of the structure. In this article, the authors explain the concepts and methods of progressive degradation to the audience first and then present the concept and theory of this phenomenon in a simple language by providing some useful examples of the progressive failure analysis in a variety of steel structures. Finally, the results obtained from the analysis and stability of steel structures against the phenomenon of progressive deterioration are presented.
 
 
 

Keywords

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