Structures subjected to blast loading: Experimental tests and Protection strategies

RAMÓN HUMBERTO CODINA; RICARDO DANIEL AMBROSINI; FERNANDA MARÍA DE BORBÓN

Workshop; Dynamic Behavior of Materials. Experimental tests and modelling of materials under high strain rates; 2016

The main objective of this work is to propose new alternatives for protection of RC columns subjected to close-in blast loading. The main objective of the research line is to prevent and avoid the progressive collapse. A numerical-experimental study of the dynamic response of reinforced concrete (RC) members protected in different ways is presented. As expected, the steel jacketing protection presents excellent behavior. The maximum final deflection was lowered by almost 60%. Consequently, there was less damage to the member and obviously, it can be inferred that this member has a higher residual capacity, preventing progressive collapse. The proposed reinforced and isolated resin panels presented and excellent behavior, inclusive better than steel jacketing. It reduced the maximum final deflection by more than 66%. The damage in the member was also significantly reduced. The proposed reinforced polyurethane protection presented reasonably good behavior. It reduced the maximum final deflection by more than 20%. The damage in the member was also significantly reduced.