International Research Journal of Education and Technology

The Linear Dynamic Analysis of Irregular-Shaped High-Rise Buildings is crucial for assessing the structural response under seismic forces. This study utilizes the Response Spectrum Method (RSM) in ETABS to evaluate the seismic performance of a G+20 high-rise building with both horizontal and vertical irregularities. The analysis is conducted in Seismic Zones 3, 4, and 5, considering medium-density soil conditions. Various loads, including dead load, live load, wind load (55 m/s in Wind Zone 5), and seismic load, are assigned based on IS 875 and IS 1893-2016. A total of 26 load combinations are considered as per IS 456-2000. The results focus on story shear, overturning moment, story drift ratio, and maximum displacement across different seismic zones. This comparative study helps optimize structural design for enhanced earthquake resistance. The findings will be compiled into a report and prepared for journal publication to contribute to seismic design research.

Key Words:  Linear Dynamic Analysis, Response Spectrum Method, ETABS, Seismic Zones, High-Rise Building, Structural Stability, Earthquake Resistance, Story Drift, Overturning Moment, Load Combinations.