Publication Date: 2023/11/30
Abstract: Progressive collapse causes the failure of primary structural member to propagate to the adjoining member, thus causing the collapse of the entire structure. The need to mitigate the impact of progressive collapse is necessary as it leads to catastrophic economic loss and causalities. The flat slab buildings are more prone to progressive collapse due to the absence of beams which are used to transfer the load initially resisted by the removed column. The main cause of failure in a flat slab building is the punching shear failure occurring at the slab column connections. The main objective of the analysis is to study the different force acting on building. To Study the progressive behavior of flat slab of G + 10 storey L and C shaped asymmetrical plan building for removal of column from different location (interior, exterior and corner). The progressive collapse analysis was carried out with the help of commercially available software named ETABs 16. The critical members were removed. The analysis was carried out by referring General Services Administration (GSA-2013, Revised 2016) and Unified Facility Criteria - Department of Defense (UFC - DoD- 2009, Revised 2016) guidelines. For flat slab without drop panel structure when longer side middle column is removed the maximum vertical deflection in L plan building is around 1/2 of maximum vertical deflection of C plan. Flat slab without drop panel structure when outer corner, inner corner and middle column removed maximum base shear in L plan building is around 1/2 of maximum base shear of C plan. From the analysis results it was found out that L plan and C plan buildings, L plan building performed better.
Keywords: Progressive Collapse, RC Frame, Flat Slab, Drop Panel, Linear Static Analysis, ETABS.
DOI: https://doi.org/10.5281/zenodo.10245211
PDF: https://ijirst.demo4.arinfotech.co/assets/upload/files/IJISRT23NOV2021.pdf
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