• Gauri Girdharrao Nimbhorkar
• Prof. Amey R. Khedikar

t: Nowadays, as in the urban areas the availability of space for the construction of buildings is less , thats why we can construct vertically irregular or regular building. So in limited space we have to construct such type of buildings which can be used for multiple purposes such as lobbies, car parking, reception hall etc. To fulfill the demand, buildings with irregularities is the only option available for construction. During an earthquake, failure of structure starts at weak points, and this weakness arises due to irregularity in mass, stiffness and geometry of structure. During an earthquakes, vertical irregularities are one of the major reasons of failures of structures.To study the behaviour of the building having various vertical irregularities at different floor level with stiffness irregularity at different level and the modelling is done by using the software SAP2000. The methods use for analysis are static analysis and response spectrum analysis. Comparison has done for vertically irregular and regular building by considering various parameters like storey drift, displacement, base shear, and storey stiffness.

Stiffness irregularities, vertical irregularities, soft storey, storey drift.

"Seismic response of vertically irregular and regular rc frame with stiffness irregularity at different level ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 7, page no.b275-b286, July-2021, Available :http://www.jetir.org/papers/JETIR2107164.pdf

"Seismic response of vertically irregular and regular rc frame with stiffness irregularity at different level ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 7, page no. ppb275-b286, July-2021, Available at : http://www.jetir.org/papers/JETIR2107164.pdf