DOD MINIMUM ANTITERRORISM STANDARDS FOR BUILDINGS Aids · PDF file7/21/2014 1 UFC 4-010-01 DOD MINIMUM ANTITERRORISM STANDARDS FOR BUILDINGS Aids for Design Professionals 9 July

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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





Combined0.015”, 0.03” & 0.06”

Figure C Figure D




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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


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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)




Combined0.015”, 0.03” & 0.06”

Figure A Figure B






Combined0.015”, 0.03” & 0.06”

Figure C Figure D




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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



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



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.

[email protected]

(808) 531-1308

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Documents

DOD MINIMUM ANTITERRORISM STANDARDS FOR BUILDINGS Aids · PDF file7/21/2014 1 UFC 4-010-01 DOD MINIMUM ANTITERRORISM STANDARDS FOR BUILDINGS Aids for Design Professionals 9 July