STUDY OF MULTISTORY BUILDING SUBJECTED TO BLAST LOADS

Civil Engineering

The investigation and design of structures when exposed to explosion loads require an understanding of the air explosion phenomenon and the dynamic response of structure. Usually the structures will experience the blast loading owed to armed actions, unplanned outbursts or terrorist actions In this project an attempt is made to analyze a G+4 storied symmetrical building which is subjected to blast loading. A comparative analysis is given when the structure is fitted with X bracings, diagonal bracings. For the analysis ETABS is used along with RC Blast software. A case study is performed in unsymmetrical building taking the reference of our college AIET Main Building with G+4. A comparative analysis is given when the structures are fitted with different types of bracings. The plan of the building is to be drawn using AutoCAD and for the analysis ETABS is used along with RC Blast software. Computation of blast loading for G+4 storied framed building has been carried out for different cases, in which one is Normal G+4 storey building, X-Braced type building, Diagonal type braced building i.e. inclination along forward and backward direction In all the cases the equivalent SEMTEX charge weight W has been taken as 50 kg and the actual effective distance from explosion R is taken as 10 m.

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