Seismic Response of Braced RCC Building with Variable Ground Slopes

The buildings in hills are highly vulnerable to earthquake. These buildings have variation on stiffness, mass and geometry. The ground level columns having different height. Thus, the shorter columns attract more lateral force and lead to short column effect. The three configurations adopted in hill buildings are step back, set back and step back set back. The performance of a building can be enhanced by providing shear walls and bracings. This study focused on the seismic response of braced RCC building with variable ground slopes. A G+4 storey building with ground slopes varying from 0°, 10°, 20° and 30° with and without X and inverted V bracings were studied. The bracings were provided along and across the slopes. Response Spectrum analysis has been carried out using ETABS software. The seismic response was studied in terms of storey displacements, storey drifts, base shear, overturning moment, and storey stiffness