Comparative Study of Response of Structures Subjected To Blast and Earthquake Loading (original) (raw)
The increase in the number of terrorist attacks especially in the last few years has shown that the effect of blast load on building is a serious challenge that should be taken in to consideration for designing of structures. This type of loading damages the structures, externally as well as internally. Hence the blast load should be considered with same importance as earthquake load. The present study includes the comparative performance of G+3 storey building subjected to blast and earthquake loading using ETABS. For four storey building using different input parameters like charge explosive, stand-off distance and layout of building the blast pressure are conducted and linear time history analysis is carried out. Comparative study for blast and earthquake loading is carried out for different parameters like maximum storey displacement, storey drift and quantity of materials. Safe charge explosive and safe stand-off distance are obtained for the RCC structure with the sections of structural elements same as per the requirement for earthquake resistance. Displacement is higher for the blast loading as compared to earthquake loading and very high for the storey at which blast load is applied. Quantity of concrete is 40 percentages higher for blast resistant building than the earthquake resistant building.
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