Comparative Analysis of Linear Static and Linear Dynamic (Response Spectrum) Action on A G+14 Building with Irregularities in Elevation, Located in Zone III, Suart, Gajarat.

With the rapid pace of urban growth and limited land availability, modern cities increasingly rely on vertical development through high-rise buildings to accommodate residential and commercial needs. Such structures often include large unobstructed spaces for amenities like parking, auditoriums, and multipurpose halls, which influence their structural design and dynamic performance. This study focuses on the seismic analysis and design of a 2B+G+14 reinforced concrete frame building situated in Seismic Zone III, analyzed using ETABS software. The building is evaluated under two approaches—Linear Static analysis and Linear Dynamic (Response Spectrum) analysis—following the provisions of IS 1893 (Part 1): 2016 and other relevant Indian standards.The comparative analysis reveals that the Response Spectrum method provides reduced values of base shear, storey drift, displacement, and overturning moments compared to the Equivalent Static method, indicating better seismic performance and stability. Furthermore, the dynamic method captures the realistic behavior of buildings subjected to earthquake-induced ground motions.The research emphasizes that incorporating dynamic analysis in the seismic design of multi-storey buildings ensures more reliable and efficient structural performance, contributing to safer urban development.