• Gaurav M. Ganorkar

Flat slabs system of construction is one in which beams are not present. The slab directly rests on the column and load from the slab is directly transferred to the columns and then to the foundation. But absence of beam drastically affects the strength of structure, this results in reduction in serviceability. To overcome this, various arrangements are introduced in flat slab system and analysed for different criteria. The initial local failure propagates disproportionately from component to component, eventually leading to the collapse of the entire structure this is called as Progressive Collapse. Progressive collapse occurs for many reasons, such as explosion, vehicle impact, fire, etc. In this paper to analyse the structure for progressive collapse alternate load path method is used which is the part of direct design method as per GSA guidelines. As per alternate load path method column removal scenario is introduced at various locations in structure. ETABS software is used to model and analyze the reinforced concrete flat slab structures. After obtaining analysis results from ETABS comparative study on different parameters is carried out such as axial load, vertical displacement and demand capacity ratio of the structures. From that comparative study we concluded that using perimeter beam and drop panels helped in improving the performance of structure in Progressive Collapse condition.

RCC flat slab, progressive collapse, perimeter beam, ETABS

"Comparative study of different Flat slab structures under progressive collapse", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 6, page no.f420-f427, June-2024, Available :http://www.jetir.org/papers/JETIR2406547.pdf

"Comparative study of different Flat slab structures under progressive collapse", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 6, page no. ppf420-f427, June-2024, Available at : http://www.jetir.org/papers/JETIR2406547.pdf