Posts filed under: Window Blast

Window Blast

Window Blast Design

Explosive blasts create additional overpressure loadings. That are typically not accounted for. In conventionally designed buildings. The performance of building envelopes and also cladding components. 

Risk Assessment & Performance

So the purpose of blast resistant design is to minimize the hazards caused by a blast as opposed to preventing damages

Performance conditions established by. GSA are categorized by breakage characteristics ranging from 1. Which allows no breakage, to 5, so where breakage debris travels 10-ft or farther from the window.

Blast Mitigation Technoloties

Various approaches may be used when designing fenestrations for blast-resistance. These include particular design of the glass or window frame components; increased anchorage of the window assembly itself; structural augmentation of the surrounding wall structure; or separate shielding systems and mechanisms designed to catch the debris and also use of laminated glass.

Milcon Milcon projects with UFC 2012 criteria; Now requires the inner glass doors and side lights for inside elevations of vestibules to be blast resistant. We keep an eye out early on to reduce headaches on the back end. JEI...
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Glass Blast:  Explosive Weight I and Explosive Weight II? Glass Blast design is an increasingly important topic. Question Can you break me down the difference in Explosive Weight I and Explosive Weight II?    Answer This is the criteria from the...
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Gathering Missing Information on Blast Design Projects Saves Time Many blast project specs do not provide enough information to come up with the equivalent 3-second blast design pressure from ASTM F2248. Glazing contractors can save time by requesting the following...
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FUTURE CHANGES TO UFC CODE / ASTM F2248 STANDARD For the past several years, the Unifed Facilities Criteria (UFC 4-010-01) has been the governing code for all U.S. Department of Defense (DoD) blast mitigation projects.  Referencing the current ASTM F2248-03...
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Two Main Blast Load Codes Two Main Blast Load Codes, what type of project do you have? Is it a Government Services Administration (GSA) Project or a Department of Defense (DoD) project? If it is neither of these, and it...
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 Requirements for Blast Resistant Glazing Projects Are you considering jumping into the fray to receive some of the trickle down recovery money? Perhaps you’re considering a project that requires blast resistant glazing, but you are not sure what to expect....
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 Antiterrorism : Blast-resistant Glazing Systems   The environment of rapidly evolving antiterrorism codes has left estimators. And manufacturers in a whirlwind of confusion asking themselves. “Why do blast resistant requirements seem to be a moving target?” It’s important for us...
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 Are the anchors for your blast resistant glazing systems appropriately designed? There are many misinterpretations of UFC requirements for blast resistant design among engineers. Some engineers solely design anchors for two times the static equivalent blast load determined from ASTM...
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