2.3.4
Ramp
The ramp shall be structural steel, portable, and weigh not more than [90]
[_____] kg [200] [_____] pounds. The ramp shall be of sufficient length to
extend the full door opening width and shall have the profile indicated.
The ramp shall be capable of supporting [a wheel load of [_____] N pounds]
[the wheel load indicated].
2.3.5
Self-Rescue Kit
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NOTE: Self-rescue kits are usually specified only
when post-blast operation is desired and debris
could prevent the door from opening.
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Self-rescue kits shall contain illustrated instructions, nonadjustable
wrenches, screwdrivers, jacks, and all other tools required to open the
blast door from the seating face to a width of at least 300 mm 12 inches.
The jack capacity shall not be less than [334] [_____] kN [75,000] [_____]
pounds. Tools shall be securely mounted in a steel frame using wing nuts
or other approved fasteners. The self-rescue kit frame shall be fabricated
in the same manner specified for the door frame and shall be securely
anchored to the wall at the location indicated or as directed.
2.4
FABRICATION
2.4.1
Shop Assembly
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NOTE: Delete welding of stainless steel when only
reinforced concrete doors are specified.
For reinforced concrete doors, spall plates will be
specified for all cases except in extreme cases
where it is certain that spall damage is nonexistent
or when faceplates are used.
Specify faceplates for exterior doors in
conventional weapons resistant facilities in cases
where construction is to parallel NATO criteria.
Composite faceplated reinforced concrete doors with
studs welded to both faceplates are also available.
When these doors are required, specify the following
in the fabrication paragraph: "Composite faceplated
reinforced concrete doors shall be provided with
studs shop welded to faceplates at both ends of the
stud. Studs shall be of sufficient diameter and
spacing to effectively transfer shear forces."
Specify the following under door assembly paragraph
Door Type: "Composite faceplated reinforced concrete
door."
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Welding shall be in accordance with AWS D1.1/D1.1M except that arc welding
of steel sheet and strip shall be in accordance with AWS D1.3 and welding
of concrete reinforcing bars shall be in accordance with AWS D1.4.
SECTION 08390
Page 23
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