The structural behavior of multistory RCC buildings under seismic and wind forces is complex and critical, especially when constructed on sloping terrains. This study investigates the performance of a G+9 RCC building using different models on flat and sloped grounds (0° to 20°) under Zone III, IV, and V seismic intensities. STAAD.Pro and ETABS software were employed for linear and nonlinear analyses, following IS 1893:2002 and IS 456:2000 guidelines. Parameters such as base shear, story drift, lateral displacement, overturning moment, and internal forces were evaluated. Results indicated that terrain slope and seismic zone significantly influence structural response, with higher slopes and zones leading to increased displacements, drift, and overturning moments. The findings underline the necessity of careful structural planning in seismic-prone, uneven terrains.

Keywords

RCC Buildings; Seismic Analysis; Wind Forces; Sloped Ground; Base Shear; Story Drift; STAAD.Pro; ETABS.