This study investigated the blast pressure characteristics acting on a structure by conducting explosion tests and numerical simulations.Prior to the explosion tests, a method for evaluating the blast pressure characteristics proposed by the U.S. facility criteria was described and its unpublished concept was discussed.Then, scaled explosion tests for investigating the blast pressure acting on a box-type structure were conducted by using composition C-4 high explosive. Blast pressure characteristics at a front wall, a top roof, lateral and rear walls were discussed comparing those estimated by the U.S. facility criteria. Numerical simulation was carried out to further investigate the blast pressure characteristics. Numerical results showed good agreement with the test results.
