• Tanay joshi
• Hemant Kumar Sain

The effects of vertical acceleration of the ground on flat slab building are presented in this paper. In the current environment, most design standards, including IS 1893-2016, recommend that the vertical acceleration element of an earthquake be designed as 2/3 of the horizontal. During recent quakes, the vertical element of ground motion was discovered to be greater than the horizontal element. It is consequently vital to investigate structural reaction in this sort of earthquake, where the vertical element's peak ground acceleration (PGA) may reach two-thirds of the horizontal element. Time history analysis was done in this study utilising 5 unscaled seismic data. To account for the influence of vertical ground vibrations, 5 various structural systems were investigated, including a drop panel, shear walls, and three flat plates of varying thickness. Variations in several parameters such as axial force for column at several locations in building, punching shear at the junction of slab & column, and deflection of slab have been examined. The results of the calculations demonstrate that vertical ground movement has a significant impact on the flat slab structure in regard to axial force variations, punching shear, and deflection of slab.

flat slab, flat plate, vertical ground motion, vertical earthquake motion, vertical PGA, response of flat slab, time history analysis

"Influence of fault lines on the performance of flat slabs during vertical seismic activity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 12, page no.g447-g455, December-2024, Available :http://www.jetir.org/papers/JETIR2412650.pdf

"Influence of fault lines on the performance of flat slabs during vertical seismic activity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 12, page no. ppg447-g455, December-2024, Available at : http://www.jetir.org/papers/JETIR2412650.pdf