DOD MINIMUM ANTITERRORISM STANDARDS FOR BUILDINGS Aids · PDF file7/21/2014 1 UFC 4-010-01...
Transcript of DOD MINIMUM ANTITERRORISM STANDARDS FOR BUILDINGS Aids · PDF file7/21/2014 1 UFC 4-010-01...
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UFC 4-010-01DOD MINIMUM ANTITERRORISM STANDARDS FOR BUILDINGS
Aids for Design Professionals
9 July 2014
Presented by: Bennett Fung, P.E.
PURPOSE
Brief history & summary of UFC 4-010-01
Clarify standoff distances confusions
Introduce design aids to assist design professionals to determine appropriate Standoff Distances
We only address building types that we usually encounter with DoDprojects
This presentation is not intended to be comprehensive
Please read UFC 4-010-01 for details
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HISTORY OF UFC 4-010-01
UFC 4-010-01 DoD Minimum Antiterrorism Standards for Buildings
UFC 4-010-02 DoD Minimum Antiterrorism Standoff Distances for Buildings (FOUO)
First published:
31 July 2002
8 October 2003
22 January 2007, Change 1
Major Revision:
9 February 2012
1 October 2013, Change 1
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AT/FP APPLICABILITY
Occupancy LevelNumber of DoD
Personnel that routinely occupy the space
Population Density Greater than one person
per 430 sfLevel of Protection
Need toConform to Minimum
AT/FP Standards
Primary Gathering 50 or more, and YES Low Yes
Inhabited 11 or more, and YES Very Low Yes
Low Occupancy Fewer than 11, or NO None Exempt
High Occupancy Family Housing
13 units or more NA Low Yes
Low Occupancy Family Housing
12 units or fewer NA None Exempt
Summary
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LEVELS OF PROTECTION Window and Door Behaviors
Level of Protection
Window Hazard Rating ASTM
F2912Window Description Glazing Injuries
Door Hazard RatingASTM F2247 and ASTM F2927
Below AT Standards
HighWindows will fail catastrophically
Lethal hazardsCategory V
Doors will be thrown into rooms
Very Low Low
Glazing will fracture, come out of the frame,
and is likely to be propelled into the
building
Potential to cause serious injuries
Category IVDoors will become dislodged from the structure but will not create a
flying debris hazard
Low Very Low
Glazing will fracture, potentially come out of
the frame, but at reduced velocity
Does not present a significant injury hazard
Category IIIDoors will experience non-
catastrophic failure, but will have permanent deformation and may be
inoperable
MediumMinimal Hazard
& No HazardGlazing will fracture, but
remain in the frame
Minimal hazard consisting of glass dust
and slivers
Category IIDoor will be openable but will have
permanent deformation
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FIRST EDITION:
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CURRENT EDITION:
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STANDOFF DISTANCES
For some wall types…will require window and door construction that is significantly heavier and more expensive than windows and doors designed at the standoff distances in previous versions.
Tradeoffs will have to be analyzed when: <82 feet (25 m) for WI
<33 feet (10 m) for WII
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Before148 ft(45 m)
82 ft(25 m)
82 ft(25 m)
33 ft(10 m)
STANDOFF DISTANCES
There is an App for that!
iTunes Store:
iStandoff (for iPad)
iStandoff Lite (for iPhone)
Sorry, Android App is coming!
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STANDARD 1: STANDOFF DISTANCES Figures B-1 and B-2 have many Qualifications
Building structure must meet Conventional Construction Parameters to use the conventional construction standoff distances provided in these tables
If the building structure does not meet Conventional Construction Parameters OR if there is not adequate standoff distance, then the structure needs specific analysis or hardening for blast effects at the available standoff distance
Windows and doors must be designed for the applicable standoff distance
Windows and doors need to be properly anchored to the supporting structure
The structures around the window and door openings need to be designed for the increased applied loads due to larger tributary areas to the adjacent supporting elements
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CONVENTIONAL CONSTRUCTION PARAMETERS (PAGE 1/2)
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CONVENTIONAL CONSTRUCTION PARAMETERS (PAGE 2/2)
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CCP are fairly well defined for exterior walls unless you have very tall walls
Roof systems are very limited. Most commonly used roof systems will need to be designed for blast pressure.
THE PROBLEM
How are we supposed to determine what is the best Standoff Distance for our building?
How can we quickly get the window and door supplier to give us a quote?
What glazing size and type will work best for our project?
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THE SOLUTION: DESIGN AIDS
For Window Protection we created the following design aids Standoff Distance Charts for Windows
Dynamic Blast Pressure and Impulse Charts
Window Out of Plane Reaction Forces
Design Blast Pressure and Impulses using SBEDS-W (Previously HAZL) For Various:
Window sizes - Glazing areas
Aspect ratios
Levels of protection
Explosive weights
Glazing construction
All analysis assumed ground level windows and doors with explosive placed straight on
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Appendix A - AT/FP Standoff Distance Charts
•Primary Gathering Building (Low Level of Protection)
•Inhabited Building (Very Low Level of Protection)
STANDOFF DISTANCES For Window Protection
PVB Thickness Controlled Perimeter(Explosive Weight I)
Parking and Roadways(Explosive Weight II)
Combined0.015”, 0.03” & 0.06”
Figure A Figure B
0.015” Figure 1 Figure 4
0.030” Figure 2 Figure 5
0.060” Figure 3 Figure 6
PVB Thickness Controlled Perimeter(Explosive Weight I)
Parking and Roadways(Explosive Weight II)
Combined0.015”, 0.03” & 0.06”
Figure C Figure D
0.015” Figure 7 Figure 10
0.030” Figure 8 Figure 11
0.060” Figure 9 Figure 12
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STANDOFF DISTANCES
For Window Protection
Figure 2 Explosive Weight I
Low Level of Protection
IGU ¼” + 2-1/8” with 0.03” PVB
Example: 4’x5’ window
Area = 20 sq ft
Aspect Ratio: 1.25
Find required standoff distance
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Old Standoff Distance = 45m (148 ft) STANDOFF DISTANCESPRIMARY GATHERING, LOW LEVEL OF PROTECTION, CONTROLLED PERIMETER
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Fig 1: 0.015” PVB Fig 2: 0.03” PVB Fig 3: 0.06” PVB
STANDOFF DISTANCES
For Window Protection
Figure A Explosive Weight I
Low Level of Protection
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Appendix A - AT/FP Standoff Distance Charts
•Primary Gathering Building (Low Level of Protection)
•Inhabited Building (Very Low Level of Protection)
STANDOFF DISTANCES For Window Protection
PVB Thickness Controlled Perimeter(Explosive Weight I)
Parking and Roadways(Explosive Weight II)
Combined0.015”, 0.03” & 0.06”
Figure A Figure B
0.015” Figure 1 Figure 4
0.030” Figure 2 Figure 5
0.060” Figure 3 Figure 6
PVB Thickness Controlled Perimeter(Explosive Weight I)
Parking and Roadways(Explosive Weight II)
Combined0.015”, 0.03” & 0.06”
Figure C Figure D
0.015” Figure 7 Figure 10
0.030” Figure 8 Figure 11
0.060” Figure 9 Figure 12
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STANDOFF DISTANCES For Window Protection
Figure 8 Explosive Weight I
Very Low Level of Protection
IGU ¼” + 2-1/8” with 0.03” PVB
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Old Standoff Distance = 25m (82 ft)
WINDOW FRAME ANCHOR For Window Protection
Figure 16 Explosive Weight I
Low Level of Protection
IGU ¼” + 2-1/8” with 0.03” PVB
Find Maximum out-of-plane Reaction
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DOOR BLAST DESIGN
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WINDOW & DOOR BLAST DESIGN
Figures 13: Blast Pressure Figure 14: Impulse
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(Note: Semi-log scale)
UFC 4-020-01SECURITY ENGINEERING FACILITIES PLANNING MANUAL UFC 4-010-01, B-1 Site Planning
…Planning level costs and requirements for building hardening are addressed in UFC 4-020-01…
UFC 4-010-01, B-1.1.1 Conventional Construction Standoff Distance
Those tradeoffs will generally need to be analyzed when standoff distances are less than 82 feet (25 meters) for Explosive Weight I and 33 feet (10 meters ) for Explosive Weight II. There are tools in UFC 4-020-01 that can assist in evaluating those tradeoffs.
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UFC 4-020-01
Appendix A: New Construction Cost Tables
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*Special Structures include Religious Facilities, Recreational Facilities, Commissaries and Exchanges specified in Table 3-1 of UFC 4-020-01
UFC 4-020-01
Appendix D of our report
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Appendix D – Minimum Construction Type and Cost Increase for Building Components to Comply with AT/FP Standards
Source: UFC 4-020-01 DoD Security Engineering Facilities Planning Manual, Appendix A
I. Minimum Construction Type for Building Components to Comply with AT/FP
Level of Controlled Perimeter Parking and Roadways
Protection (Explosive Weight I) (Explosive Weight II) Low Table 1 Table 2
Very Low Table 3 Table 4
II. Cost Increase for Building Components to Comply with AT/FP
Level of Controlled Perimeter Parking and Roadways Protection (Explosive Weight I) (Explosive Weight II)
Low Table 5 Table 6 Very Low Table 7 Table 8
Admin Facility, Medical Clinic and Barracks:
Standoff
Distance
(feet) Thk. Reinf. Mat. Out. Pane Inner Pane Laminate Door Backing Wall Thk. Mat. Deck L W Sppt. Memb.
32.8 8" Heavy Conc. ¼” Glass 5 x 1/8" Glass 4 x 0.045" PVB Hollow Metal Backing Wall 4.5" Conc. Metal 30' 6' 20K10
33.1 8" Heavy Conc. ¼” Glass 4 x 5/32" Glass 3 x 0.045" PVB Hollow Metal Backing Wall 4.5" Conc. Metal 30' 6' 20K10
33.5 10" Heavy CMU ¼” Glass 4 x 5/32" Glass 3 x 0.045" PVB Hollow Metal Backing Wall 4.5" Conc. Metal 30' 6' 20K10
34 ‐ 43 12" Moderate CMU ¼” Glass 4 x 5/32" Glass 3 x 0.045" PVB Hollow Metal Backing Wall 4.5" Conc. Metal 30' 6' 20K10
44 ‐ 54 10" Moderate CMU ¼” Glass 4 x 5/32" Glass 3 x 0.045" PVB Hollow Metal Backing Wall 4.5" Conc. Metal 30' 6' 20K10
54 ‐ 67 12" Light CMU ¼” Glass 4 x 5/32" Glass 3 x 0.045" PVB Hollow Metal Backing Wall 4.5" Conc. Metal 30' 6' 20K10
67 ‐ 69 12" Light CMU ¼” Glass 2 x 3/16" Glass 0.060" PVB Hollow Metal Backing Wall 4.5" Conc. Metal 30' 6' 20K10
69 ‐ 71 12" Light CMU ¼” Glass 2 x 5/32" Glass 0.060" PVB Hollow Metal Backing Wall 4.5" Conc. Metal 30' 6' 20K10
71 ‐ 79 8" Moderate CMU ¼” Glass 2 x 5/32" Glass 0.060" PVB Hollow Metal Backing Wall 4.5" Conc. Metal 30' 6' 20K10
80 ‐ 96 8" Moderate CMU ¼” Glass 2 x 5/32" Glass 0.060" PVB Hollow Metal Backing Wall ‐ ‐ Metal 30' 4' 18LH02
96 ‐ 113 8" Moderate CMU ¼” Glass 2 x 1/8" Glass 0.030" PVB Hollow Metal Backing Wall ‐ ‐ Metal 30' 4' 18LH02
113 ‐ 116 8" Moderate CMU ¼” Glass 2 x 1/8" Glass 0.030" PVB Hollow Metal Backing Wall ‐ ‐ Metal 30' 6' 18LH02
117 ‐ 131 8" Light CMU ¼” Glass 2 x 1/8" Glass 0.030" PVB Hollow Metal Backing Wall ‐ ‐ Metal 30' 6' 18LH02
131 ‐ 133 8" Light CMU ¼” Glass 2 x 1/8" Glass 0.030" PVB Hollow Metal Backing Wall ‐ ‐ Metal 30' 8' 18LH02
133 ‐ 160 8" Light CMU ¼” Glass 2 x 1/8" Glass 0.030" PVB Hollow Metal Backing Wall ‐ ‐ Metal 30' 8' 16K9
161+ 8" Light CMU ¼” Glass 2 x 1/8" Glass 0.030" PVB Hollow Metal ‐ ‐ ‐ Metal 30' 8' 16K9
Construction Type
Walls Windows Doors Roofs
MINIMUM CONSTRUCTION TYPEFOR VARIOUS BUILDING COMPONENTS TO COMPLY WITH AT/FP REQUIREMENTS
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Appendix D of our report
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DISCLAIMER
This presentation and accompanying report were prepared by SSFM International, Inc. to serve as a design aid. It does not replace or override the contents of UFC 4-010-01 or the advice of a professional engineer experienced in the field of blast design. SSFM International does not guarantee or warrant the completeness, accuracy or reliability of the information in this report. Users of this report are responsible for assessing the relevance and accuracy of the contents of this report and it shall be used at your own risk. SSFM International will not be liable for any loss, damage or expense incurred by any person(s) using or relying on the information in this report.
This presentation and accompanying report may not be copied for commercial redistribution or dissemination without the explicit permission of SSFM International.
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THANK YOU!
SSFM International, Inc.501 Sumner Street, Suite 620
Honolulu, HI 96817
Bennett Fung, P.E.
(808) 531-1308
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