Published Paper Details:

Rapid urbanization has pushed construction into high-risk seismic zones, making it crucial to understand how specific soil conditions influence the stability of high-rise structures. This project analyzes the seismic performance of a G+12 reinforced concrete building under varying earthquake intensities as defined by IS 1893:2016. Using STAAD.Pro, the structure was modeled and tested across four distinct scenarios, specifically comparing the transition from Seismic Zone IV to Zone V on both Hard (Type 1) and Medium (Type 2) soils. The study focused on quantifying the increase in lateral displacement, story drift, and base shear to determine at what point a standard frame becomes unsafe. The results indicate that soil type acts as a significant magnifier for seismic forces. Shifting the building from a hard rock base in Zone IV to medium soil in Zone V caused the lateral displacement to surge by over 50%, pushing the story drift beyond the permissible safety limits. The analysis confirms that for a G+12 structure in severe seismic zones, relying solely on a moment-resisting frame is dangerous. To ensure stability and code compliance, the design requires the introduction of shear walls to control the sway, alongside a robust foundation upgrade to handle the drastically increased support reactions.