Protective Facility ISSN:3058-7816(Print) 3058-8618(Online) 방호시설

With increasing threats from wars, terrorism, and industrial explosions, the risk of blast loads on civilian structures is rising. However, current Korean building codes do not account for explosion loads in general design. To address this, the Korea Protective Facilities Institute (KPFI) proposed design standards incorporating simplified blast load estimation methods. This study presents two models—the equivalent triangular and bilinear function models—for calculating pressure-time relationships on front, side, roof, and rear walls of above-ground structures. An example case demonstrates the application of these models to derive blast design loads for each structural component, offering a practical guideline for blast-resistant structural design.