UFC 4-010-01
8 October 2003
B-3.1.2.2
Glazing Frame Bite. The glazing shall have a minimum frame bite of 9.5-
mm (3/8-in) for structurally glazed systems and 25-mm (1-in) for window systems that
are not structurally glazed.
B-3.1.2.3
Connection Design. Equivalent static design loads for connections of the
window, skylight, or doorframe to the surrounding walls or roof, hardware and
associated connections, and glazing stop connections shall be 75 kilopascals (10.8 lbs
per square inch) for glazing panels with a vision area less than or equal to 1.0 square
meters (10.8 square feet) and 30 kilopascals (4.4 lbs per square inch) for glazing panels
with a vision area greater than 1.0 square meters (10.8 square feet) but less than or
equal to 3.0 square meters (32 square feet). Loads shall be applied to the surface of
the glazing and frame. Connections and hardware may be designed based on ultimate
strength for steel and 0.2% offset yield strength for aluminum.
B-3.1.2.4
Supporting Structural Elements. Design supporting wall and roof
elements and their connections based on their ultimate capacities. In addition, because
the resulting dynamic loads are likely to be dissipated through multiple mechanisms, it is
not necessary to account for reactions from the supporting wall or roof elements in the
design of the remainder of the structure.
B-3.1.3
provide glazing and frames that will provide an equivalent level of protection to that
provided by the glazing and frames as described above and in Tables 2-1 and 2-2 for
the applicable explosive weight in Table B-1.
B-3.1.4
Window, Skylight, and Glazed Door Replacement Projects. Whenever
window, skylight, or door glazing is being replaced in existing inhabited buildings as part
of a planned window or glazing replacement project, whether or not the building meets
the triggers in paragraph 1-6.2, install glazing and frames that meet all of the
requirements above.
B-3.2
Standard 11. Building Entrance Layout. The areas outside of
installations are commonly not under the direct control of the installations. Where the
main entrances to buildings face installation perimeters, people entering and exiting the
buildings are vulnerable to being fired upon from vantage points outside the
installations. To mitigate those vulnerabilities apply the following measures:
B-3.2.1
New Buildings. For new inhabited buildings, ensure that the main
entrance to the building does not face an installation perimeter or other uncontrolled
vantage points with direct lines of sight to the entrance or provide means to block the
lines of sight.
B-3.2.2
Existing Buildings. For existing inhabited buildings where the main
entrance faces an installation perimeter, either use a different entrance as the main
entrance or screen that entrance to limit the ability of potential aggressors to target
people entering and leaving the building.
B-3.3
Standard 12. Exterior Doors. For all new and existing buildings covered
by these standards, ensure that all exterior doors into inhabited areas open outwards.
B-10
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