LINEAR AND NON-LINEAR DYAMIC EVALUATION OF CONCRETE STRUCTURES DUE TO POUNDING EFFECTS
The study of past histories has been shown that the buildings are disposed to severe damage during a strong seismicity. These buildings are striking to each other due to imperfect design and different dynamic properties. Hence to prevent the collapse of buildings, Indian Standards suggest that the minimum separation gap should be provided to prevent colliding of adjacent buildings. Structural pounding occurs when two adjacent buildings collide. Earthquakes can cause pounding when adjacent buildings have little or no gap providing separation. This paper examines the dynamic evaluation of a concrete structures and pounding effects with multiple heights of buildings for time history analysis and response spectrum analysis by using ETABS. The results were obtained in the form of point displacement and pounding force. The effect of pounding is more when the structures are kept at extreme levels of setback. The collision force is developed at the mid height of structure. Proper separation distance was proposed to prevent the linear pounding and torsional pounding. Also by providing shear wall, effect of pounding reduces.
ELAVENIL S AND VIJAY KAMBLE