Abstract
In this paper, the response of reinforced concrete buildings subjected to blast loading under variable mass of TNT and different statical system will be discussed. The study was carried out using the finite element program (ABAQUS) by using two different models (Flat slab system and Solid slab system). The plastic behavior of steel reinforced bars and concrete has been incorporated through Johnson-cook model and concrete damage plasticity model respectively. The results obtained from the two models are in terms of Von-Mises stresses, deflection and concrete damage against varying mass of TNT. The results indicate that using double reinforced mesh has great influence on reinforced concrete slabs to withstand blast loads and the damage in concrete happened under blast loads in flat slab system where in columns while the damage happened under blast loads in solid slab system where in beams so it is recommended to use the solid slab system.
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