• Priyanka Mangesh Patil
• Prof. Dr. Shrirang N. Tande

Abstract: Earthquake is one of the most natural disaster which causes loss of human life and structural collapse. The performance of multi-story framed building during earthquake depends on the distribution of mass, strength and stiffness in both horizontal and vertical planes of the building. Based on this there are two types of irregularities: vertical and horizontal irregularity. A common type of vertical irregularity is vertical setback building which is used in modern constructions. Present study shows the seismic performance and behaviour of regular and vertical setback RC framed structures by Incremental Dynamic Analysis (IDA) proposed by Vamvatsikos & Cornell. For this, two types of RC moment resisting building frames are taken in this study work which are one regular and one irregular RC frame. This two building frames are modelled and analysed in SEISMOSTRUCT 2016.Ten real ground motion pairs have selected and scaled, then applied to the buildings to perform the Incremental Dynamic Analysis (IDA). Fragility curves have developed based on IDA results for the four limit states including slight damage, moderate damage, extensive damage, and complete collapse. For the development of fragility curves, guidelines given by HAZUS MH MR-4 technical manual have been used. From fragility curves probability of exceedance of certain damage level have been calculated. Key Words: SEISMOSTRUCT-2016, Incremental dynamic analysis, Fragility curves, HAZUS MH MR4, Damage states, etc.

"Seismic Fragility Assessment of Regular and Vertical Setback RC Frame Buildings", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 6, page no.234-239, June-2018, Available :http://www.jetir.org/papers/JETIR1806281.pdf

"Seismic Fragility Assessment of Regular and Vertical Setback RC Frame Buildings", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 6, page no. pp234-239, June-2018, Available at : http://www.jetir.org/papers/JETIR1806281.pdf