In this study, 3-D numerical simulations on responses of three kinds of reinforced concrete (RC) beams subjected to standoff detonation loads have been carried out to establish a numerical simulation method for predicting responses of RC members subjected to blast loads. Effectiveness of the numerical simulation method used in this study was discussed in terms of reaction force histories, strain histories of reinforcing bars, and damage of the RC beams, comparing analytical results with corresponding experimental ones. The main result is that by assuming a proper value of tensile failure pressure of concrete, responses of the RC beams subjected to standoff detonation loads would be simulated relatively well with a simple material model based on static material properties.
