| Title |
Damage Assessment of Neinforced Concrete Column under Combined Effect of Axial Load and Blast Load by Using P-M Interaction Diagram |
| Authors |
Kim, Han-Soo ; Choi, Hyung-Bin |
| DOI |
http://dx.doi.org/10.5659/JAIK_SC.2015.31.4.13 |
| Keywords |
Blast Analysis ; RC Analysis ; Damage assessment ; P-M interaction diagram ; Axial load ; Blast load ; Autodyn |
| Abstract |
In this paper, the damage contour of reinforced concrete columns under blast load was compared with its P-M interaction diagram to evaluate the simplified analysis for blast resisting performance of reinforced concrete column. Autodyn which was specialized for analysis of explosion and impact was used to simulate the structural behavior of the columns under combined effect due to axial and blast loading. The weight of explosive is fixed on most threatening weight, 20kg, and distance of explosive is varied from 1m to 5m. According to the analysis, the damage contour of reinforced concrete column showed very similar shape to P-M interaction diagram as its axial load and blast induced additional bending moment changes. Therefore, the damage and failure behavior of reinforced concrete column can be predicted from damage contour on P-M interaction diagram. |