Numerical Modelling on the Assessment of Progressive Collapse of RC Framed Structures Subjected to Dynamic Loading

Progressive collapse is one of the most devastating types of building failure, and it has attracted much attention in the past decades. A structure undergoes progressive collapse when a primary element fails, resulting in the failure of adjoining structural elements, which in turn causes further structural collapse and abrupt loss of structural stability, often leading to loss of life and property. This devastation has generated a worldwide concern regarding the risks of progressive collapse in multistory buildings. The structural elements of the building should be able to endure the removal of one or more structural members and transfer their load to surrounding elements to prevent disproportionate structure failure. In this study, the effect of sudden column failure on the adjacent structural members is analyzed for 2D models of single-storey, double-storey, 2-bay single, Double, Three, Four and Five storey frames under dynamic loading using time history analysis to obtain a better understanding of the probability of failure mechanism. The displacements of each joint in the X-axis and Z-axis direction are observed to achieve a concrete solution to this destruction. This study helps simulate real-world events by analyzing structures dynamically, identifying the weak points and ensuring collapse-resistant buildings.