Blast and Impact Loading and Response of Structures
Full Session with Abstracts
Although extensive studies had been carried out on behavior of reinforced concrete (RC) structures to resist progressive collapse, the majority of existing studies assume the loss of the column is clear and no residual resistance remains in the damaged column. Moreover, the damage of surrounding components, such as beams and slabs, are ignored in their tests or numerical analysis. However, the above assumptions are unrealistic if the loss of column is caused by terrorist attack. Therefore, a physics-based finite element model is generated to investigate the effects of blast pressure induced by contact explosives on progressive collapse resistance of RC structures. The model is validated by extensive dynamic and blast tests. Parametric studies are also carried out to study the stand-off distance, charge weights, and damping ratio on the dynamic response of the structures .