Reliability Analysis of P-I Diagram Formula for RC Column Subjected to Blast Load

This study was conducted published to investigate there liability of the equation pressure-impulse (PI) reinforced concrete column in previous studies. Equation involves three different levels of damage criteria known as D =0.2, D =0.5 and D =0.8. The damage criteria known as a minor when 0-0.2, 0.2-0.5 is known as moderate damage, high damage known as 0.5-0.8, and 0.81 of the structure is considered a failure. In this study, two types of reliability analyzes conducted. First, using pressure-impulse equation with different parameters; the parameters involved are the concrete strength, depth, width, and height column, the ratio of longitudinal reinforcement and transverse reinforcement ratio. In the first analysis of the reliability of this new equation is derived to improve the previous equations. The second reliability analysis involves three types of columns used to derive the PI curve diagram using the derived equation to compare with the equation derived from other researchers and graph minimum standoff versus weapon yield Federal Emergency Management Agency (FEMA). The results showed that the derived equation is more accurate with FEMA standards than previous researchers. Keywords—Blast load, RC column, P-I curve, Analytical formulae, Standard FEMA.