Blast induced vibrations are common, adjacent to construction sites. Buildings adjacent to tunnel with blasting at close proximity from structures are highly vulnerable to vibrations. In this study three velocity time histories of different PPV's are applied at three different boundaries of the model. Building storey taken into consideration is a 2-storeyed building. 3 Dimensional Distinct Element code is used for the study. Response velocity spectrum generated due to blast is noted at various target points in the model. Study revealed that at higher storey the velocity and displacement increases. Displacement values indicate that models subjected to input Velocity time history at the base of model, led to greater displacement at various points of the tunnel and columns of the building compared to velocity time histories applied at other boundaries of the model.
3DEC, Velocity time history, Vertical displacement
