• AKSHATA.A. K
• SUNILKUMAR J C
• PRAVEEN NAIK

Progressive collapse is a chain reaction of failures that propagates either throughout or a portion of the structure disproportionate to the original local failure. The progressive collapse of building structure is initiated when one or more vertical load carrying members are removed. Once a column is removed or made weak, due to man-made or natural hazards, load carried by column removed is transferred to neighboring columns in the structure, if the neighboring column is incapable of withstanding the extra load, leads to the progressive failure of adjoining members and finally to the failure of partial or whole structure. When a multi-story building experiences sudden damage to a column, the structural response is dynamic and usually contains geometric non-linear and important materials. The analytical methods used to estimate the probability of a Progressive collapse are very different, from simple two-dimensional static elastic methods to complex three-dimensional non-linear dynamic analyses. In the present study the four methods for progressive collapse analysis are compared by analyzing a reinforced concrete eight storey frame structure, by employing analytical procedures: linear-elastic static, nonlinear static, linear-elastic dynamic, and nonlinear dynamic methodologies.

Progressive collapse, Column removal, Alternate path method, Demand Capacity Ratio, Linear analysis, Nonlinear analysis.

"Evaluation of the Structure's Progressive Collapse Subjected to Sudden Column Removal", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 7, page no.i470-i476, July-2024, Available :http://www.jetir.org/papers/JETIR2407846.pdf

"Evaluation of the Structure's Progressive Collapse Subjected to Sudden Column Removal", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 7, page no. ppi470-i476, July-2024, Available at : http://www.jetir.org/papers/JETIR2407846.pdf