Applied Knowledge

Presenting….iStandoff a Stone Security Engineering iPad App!

Stone Security Engineering is thrilled to present a great new tool for design teams and security personnel who work on DoD projects incorporating the requirements of the updated UFC 4-010-01 DoD Minimum Antiterrorism Standards for Buildings.

iStandoff  is a free iPad App that has been designed to quickly and easily identify Conventional Construction standoff distances, per the UFC 4-010-01 DoD Minimum Antiterrorism Standards for Buildings, dated February 9, 2012.

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What’s New for Windows? Updated UFC 4-010-01 Minimum Antiterrorism Standards For Buildings

One area of changes in the New UFC 4-010-01, 9 February 2012, is in the design requirements for exterior windows and skylights.   The updates are pretty exciting, from this blast engineer’s perspective, because they explicitly address some of the recurrent questions from design teams and owners, and clarify items that seemed to have differing interpretations, depending on who was doing the interpreting.  Well done PDC!

Historically, exterior windows and their supports, have been one of the primary areas where application of the UFC 4-010-01 has added costs to projects, so any changes to window requirements should be of the utmost interests to design and construction teams, developers, and building owners.

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Considerations in Collapse Building Assessment for Rescue Environments

As much as we would like to think of buildings as inviolable, it is a fact of life that they can – and do – collapse.   In fact, a quick internet search shows the following collapses in the past six months:

  • May 4, 2012:  Residential building collapse in Harlem, New York.
  • April 16, 2012:  Factory building in Jalandhar, India
  • March 23, 2012: Apartment Building, Alexandria Egypt
  • March 18, 2012:  Building floor in NYC collapsed during a party
  • January 26, 2012:  Three commercial buildings in Rio De Janeiro, Brazil
  • January 16, 2012:  Residential Building in Beirut, Lebanon
  • November 8, 2011:  Five story building under construction, Brooklyn, New York

Regardless of the cause (whether it be earthquake, explosion, high winds, snow overloads, or construction/design defects) the result is typically the same – a hazardous and confusing combination of steel, concrete, wood and other materials that needs to be searched to determine if there are any victims to be rescued.

An important aspect of responding to collapses is understanding the hazards of the debris pile and the remaining portions of the damaged building.  While there are many, many, considerations that must be carefully evaluated, this briefing focuses on just two:

  • The remaining potential energy in the damaged structure.
  • The stability of the remaining structure; from both a global and individual damaged element perspective.
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