BLAST ANALYSIS AND BLAST RESISTANT DESIGN OF R.C.C RESIDENTIAL BUILDING

Need of designing certain important structures to resist blast loads is gaining importance day by day due to increase in terrorist activities from the recent years. Blast forces causes loss of structural integrity due to partial or complete collapse of structural members. Blast loads are dynamic loads that must be calculated carefully as that of other dynamic loads. This paper presents effect of blast loads on 5 storey R.C.C building. Effect of 100kg Tri nitro toluene (TNT) blast source which is at 40m away from the building is considered for analysis and designed. Blast loads are calculated manually as per IS: 4991-1968 and force time history analysis is performed in STAAD Pro. The influence of blast loads on structure is compared to that of same structure in static condition, The parameters like peak displacements, velocity, acceleration are studied.