Seismic Performance of Flat Plate Floor Building with Diaphragm Discontinuity

The objective of this study is to determine how a diaphragm discontinuity will affect a flat plate slab, multi-story building (G+15) with a shear wall. The ETABS v13.2.0 software is used to model a 15-story flat plate R.C.C.-framed building for equivalent static method analysis and response spectrum analysis. A horizontal structural component called a diaphragm transfers lateral loads to the structure's vertical load-bearing components. Discontinuities in the diaphragm are used for illumination, aesthetic appeal, and other purposes, but these openings in the diaphragm cause stress at discontinuities at joins with the building components. When subjected to lateral loads, buildings with diaphragm discontinuity typically sustain damage. However, the structure's susceptibility to damage can be reduced by strategically positioning this diaphragm discontinuity. The strength and serviceability of the structure can be improved by strategically placing the diaphragm discontinuity. Additionally, their existence can significantly change how the diaphragm functions. In this project, the effects of variables like the position and eccentricity of the diaphragm discontinuity are investigated. For all the investigated examples, post analyses of the structure, such as maximum story displacement, base shear, and story drift, are computed and then compared.