Use of SBEDS for Blast Resistant Design in accordance with UFC 3-340-02

Abstract : The SBEDS workbook was developed by BakerRisk for the U.S. Army Corps of Engineers Protective Design Center as a tool to be used by structural design engineers to satisfy Department of Defense (DoD) antiterrorism standards. It is intended to be used by structural engineers experienced in structural dynamics and blast effects for designs in accordance with the gMinimum Antiterrorism Standards for Buildings (UFC 4-010-01). SBEDS can also be used by structural engineers to analyze or design structures that are subject to accidental explosions at facilities housing explosives operations. This is a reasonable extension of the code fs application, as dynamic analyses performed by both the explosion safety and antiterrorism community are based on Single-Degree-Of-Freedom (SDOF) methods. SBEDS is a very useful tool that not only performs the dynamic analysis, but also simplifies the user input by including a wide range of section and material properties, performing most of the calculations necessary to determine the required SDOF system properties (i.e., mass, stiffness, and resistance). However, there are differences between the methods defined in UFC 3-340-02 ( gStructures to Resist the Effects of Accidental Explosions h) for accidental explosion and those defined in UFC 3-340-01 ( gDesign and Analysis of Hardened Structures to Conventional Weapons Effects h) for antiterrorism design. The major differences between these two design philosophies as related to the use of SBEDS will be discussed in this paper.