This document analyzes the dynamic behavior of multi-storey steel structures subjected to earthquakes through modeling and analysis in STAAD Pro. It summarizes that steel structures perform better than other materials in earthquakes due to their lower mass and consequent lower seismic forces. A 20-storey steel building is modeled and analyzed using response spectrum analysis to investigate seismic responses at different zones. Results show base shear, displacements and drifts increase with zone and floor level. Dynamic analysis yields lower forces than static analysis, demonstrating steel structures' improved earthquake resistance.