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 MIL-HDBK-1013/1A
Table 50
Retrofit Construction Capable of Defeating
the Very High-Severity Level
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*
*
Construction
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*
*
8-inch (200-mm) hollow concrete
*
Block, 3 sheets 10-gauge (3.4-mm) *
*
*
steel, 2 sheets 3/4 inch (19 mm)
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*
6-inch (150-mm) cast concrete, No. *
*
5 (15.9-mm) rebar at 6 to 8 inches *
*
*
(200 mm) o.c., to 10-gauge (3.4-
*
*
mm) steel front and back
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*
*
8-inch (200-mm) concrete block,
*
No. 5 (15.9-mm) rebar at 8 inches *
*
*
(200 mm) o.c., horizontal joint
*
*
reinforcement, 10-gauge (3.4-mm)
*
*
steel front and back
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However, it is necessary to provide balanced measures in the upgrade of
doors. Suggestions are found in par. 6.5.2.2 (3).
Normally, because of construction constraints, existing doors are
not removed and replaced with ballistic-resistant door assemblies. However,
such a possibility may exist. The addition of a bullet-resistant wall
assembly, such as shown in Figure 64, can be effective in obscuring an
attacker's visual access to a door.
6.5.3.3
Windows. See par. 6.5.2.2.4.
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