NYC 9/11 Public Portal Document
w4/zy/yu A)-01 tybib 231 /luu I-UN I ANA ME I AL 0008/013
2 - OVERLY BLAST DOORS - SHORT FORM SPECIFICATION GUIDE
B. Design Criteria: Pre-engincered swinging doors to be Overly Model VERB or
equal. The door, frame and restraining haidwaic shall be designed to withstand
psf sealing the door into the frame and___ psf unseating the door from the
frame (rebound) The door system shall be fully operable afier application of the
specified blast.
The char! below shows the stanJarJ shes fur the Overly Model ITLliH
single door. Also shown l.f the rnaximuni safe working load each model
can withstand for both the .seating and unseating directions. Your
design blast pressure must fall within the capacitie.s listed for the
applicable opening size. If your blast pressure exceeds the capacitie.s
listed below, consider the Overly Model LRB (Tmw Range Blast) door
system. Contact Overly for more information on this product line.
Model Door Max. Max. UL Door Lock Qty. Leaf
No. Opn'g Seating Unseating Labels Thick Type Hinges Weight
Size Pressure Pressure (lb)
36 X 84 396 psf 174 psf 3 184
36x96 347 p.’jf 153 psf 3 hr, ANSI 4 222
VLRB 42 x 90 325 psf 121 psf ’’A” 1 3/4" J56.13 4 273
48x84 297 psf 114 psf Max. 3 288
48 X 96 260 psf 100 psf 4 293
C. Product Description: Doors shall be a nominal 1-3/4" thick, full flush, constructed
and reinforced to resist the blast forces specified. Design door hardware and
reinforcements to transfer all applicable blast loadings to frame. Design frame
anchors to transfer all blast loadings to walls or structural sub-frame embeds.
Frames shall be [CAoo5e one: Hollow metal formed steel with formed stops
/or / structural steel channel with welded slops], three sided, factory reinforced and
tapped for hardware. Frame anchorage shall be [CAorxre one: CMU strap
anchors / concrete expansion anchors / poured-in-place / weld-in configuration
for steel walls].
Fire rating; Those openings scheduled as fire rated shall liave been tested by and
bear the labels of Underwriters Laboratories marked for 3 hour, A label for
flush doors and 1-1/2 hour, B label for doors with a vision lite. (Maximum vision
area: 100 square inches).
The lockset shall conform to ANSI Standard A156.13. Functions as specified.
The lockset shall be suitable for use with project mastcfkcycd key cylinders were
specified.
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NYC-WTC_000166816
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