PARAMETRIC STUDY OF STRUCTURES WITH AND WITHOUT BLAST LOAD

Abstract

The analysis and design of structures subjected to blast loads require a detailed understanding of blast
phenomena and the dynamic response of various structural elements. This gives a comprehensive overview of
the effects of explosion on structures.In the present thesis, an attempt has been made to carry out the parametric
study for analysis of blast load on a building that will be select as- G+8 stories having 4 bays x 4 bays space
frame, and G+6 stories having 3 bays x 3 bays space frame. The space frame is subjected to various
combinations of gravity and earthquake loads. The space frame is analyzed keeping its base fixed based on the
result of analysis, it is designed as per IS: 456 (2000) and IS: 1893 (2002). The space frame will be analysed
using the software ETABS. The parameters like displacement, storey drift, base reactions will be studied for
with and without blast loads. This will be analyzed for blast charge of 0.1 ton, 0.3 tons and 0.5 tons at ground
zero distance of 10m, 20m and 30m each. Blast load will be applied to the front face of the structure considering
it as a triangular load (Time-History) as well as attempt will also be made to apply blast load as a normal
pressure on the front face of the building. The expected results will be then compared with the building without
blast load and with blast load.