PURPOSE HISTORY OF UFC 4-010
Transcription
PURPOSE HISTORY OF UFC 4-010
7/21/2014 PURPOSE UFC 4-010-01 DOD MINIMUM ANTITERRORISM STANDARDS FOR BUILDINGS Brief history & summary of UFC 4-010-01 Clarify standoff distances confusions Introduce design aids to assist design professionals to Aids for Design Professionals determine appropriate Standoff Distances 9 July 2014 We only address building types that we usually encounter with DoD projects This presentation is not intended to be comprehensive Presented by: Bennett Fung, P.E. Please read UFC 4-010-01 for details 2 HISTORY OF UFC 4-010-01 AT/FP APPLICABILITY UFC 4-010-01 DoD Minimum Antiterrorism Standards for Buildings Summary UFC 4-010-02 DoD Minimum Antiterrorism Standoff Distances for Buildings (FOUO) Occupancy Level First published: 31 July 2002 8 October 2003 22 January 2007, Change 1 Major Revision: 9 February 2012 1 October 2013, Change 1 Number of DoD Population Density Personnel that routinely Greater than one person occupy the space per 430 sf Level of Protection Need to Conform to Minimum AT/FP Standards Yes Primary Gathering 50 or more, and YES Low 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 3 4 5 6 LEVELS OF PROTECTION Window and Door Behaviors Level of Protection Window Hazard Rating ASTM F2912 Below AT Standards Window Description Glazing Injuries Door Hazard Rating ASTM F2247 and ASTM F2927 High Windows will fail catastrophically Lethal hazards Category 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 IV Doors will become dislodged from the structure but will not create a flying debris hazard Low Very Low Medium Minimal Hazard & No Hazard Category III Glazing will fracture, Doors will experience nonDoes not present a potentially come out of catastrophic failure, but will have the frame, but at reduced significant injury hazard permanent deformation and may be velocity inoperable Minimal hazard Glazing will fracture, but consisting of glass dust remain in the frame and slivers Category II Door will be openable but will have permanent deformation 1 7/21/2014 7 FIRST EDITION: 8 CURRENT EDITION: 9 STANDOFF DISTANCES 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: 10 There is an App for that! iTunes Store: Before 148 ft (45 m) 82 ft (25 m) 82 ft (25 m) iStandoff (for iPad) iStandoff Lite (for iPhone) Sorry, Android App is coming! 33 ft (10 m) <82 feet (25 m) for WI <33 feet (10 m) for WII 11 12 2 7/21/2014 STANDARD 1: STANDOFF DISTANCES CONVENTIONAL CONSTRUCTION PARAMETERS Figures B-1 and B-2 have many Qualifications (PAGE 1/2) 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 13 CONVENTIONAL CONSTRUCTION PARAMETERS 14 THE PROBLEM (PAGE 2/2) How are we supposed to determine what is the CCP are fairly well best Standoff Distance for our building? defined for exterior walls unless you have very tall walls How can we quickly get the window and door supplier to give us a quote? Roof systems are very limited. Most commonly used roof systems will need to be designed for blast pressure. What glazing size and type will work best for our project? 15 THE SOLUTION: DESIGN AIDS 16 STANDOFF DISTANCES For Window Protection For Window Protection we created the following design aids Appendix A - AT/FP Standoff Distance Charts Standoff Distance Charts for Windows •Primary Gathering Building (Low Level of Protection) PVB Thickness Controlled Perimeter Parking and Roadways 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 Weight I) (Explosive Weight II) Combined 0.015”, 0.03” & 0.06” 0.015” Figure A Figure B Figure 1 Figure 4 0.030” Figure 2 Figure 5 0.060” Figure 3 Figure 6 •Inhabited Building (Very Low Level of Protection) Explosive weights PVB Thickness Glazing construction All analysis assumed ground level windows and doors with explosive placed straight on 17 Controlled Perimeter Parking and Roadways (Explosive Weight I) (Explosive Weight II) Combined 0.015”, 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 18 3 7/21/2014 STANDOFF DISTANCES Old Standoff Distance = 45m (148 ft) STANDOFF DISTANCES PRIMARY GATHERING, LOW LEVEL OF PROTECTION, CONTROLLED PERIMETER 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 Fig 1: 0.015” PVB distance Fig 2: 0.03” PVB Fig 3: 0.06” PVB 19 STANDOFF DISTANCES 20 STANDOFF DISTANCES For Window Protection For Window Protection Appendix A - AT/FP Standoff Distance Charts Figure A •Primary Gathering Building (Low Level of Protection) PVB Thickness Controlled Perimeter Parking and Roadways Explosive Weight I Low Level of Protection (Explosive Weight I) (Explosive Weight II) Combined 0.015”, 0.03” & 0.06” 0.015” Figure A Figure B Figure 1 Figure 4 0.030” Figure 2 Figure 5 0.060” Figure 3 Figure 6 •Inhabited Building (Very Low Level of Protection) PVB Thickness Controlled Perimeter Parking and Roadways (Explosive Weight I) (Explosive Weight II) Combined 0.015”, 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 21 22 WINDOW FRAME ANCHOR STANDOFF DISTANCES For Window Protection For Window Protection Figure 16 Figure 8 Explosive Weight I Explosive Weight I Low Level of Protection Very Low Level of IGU ¼” + 2-1/8” with Protection 0.03” PVB IGU ¼” + 2-1/8” with Find Maximum out-of- 0.03” PVB plane Reaction Old Standoff Distance = 25m (82 ft) 23 24 4 7/21/2014 DOOR BLAST DESIGN WINDOW & DOOR BLAST DESIGN (Note: Semi-log scale) Figures 13: Blast Pressure Figure 14: Impulse 25 UFC 4-020-01 SECURITY ENGINEERING FACILITIES PLANNING MANUAL 26 *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 A: New Construction Cost Tables 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. 27 MINIMUM CONSTRUCTION TYPE UFC 4-020-01 FOR VARIOUS BUILDING COMPONENTS TO COMPLY WITH AT/FP REQUIREMENTS Appendix D of our report Appendix D of our report Admin Facility, Medical Clinic and Barracks: Standoff Distance Walls (feet) Thk. Reinf. Mat. Out. Pane 32.8 8" Heavy Conc. ¼” Glass 33.1 8" Heavy Conc. ¼” Glass 33.5 10" Heavy CMU ¼” Glass 34 ‐ 43 12" Moderate CMU ¼” Glass 44 ‐ 54 10" Moderate CMU ¼” Glass 54 ‐ 67 12" Light CMU ¼” Glass 67 ‐ 69 12" Light CMU ¼” Glass 69 ‐ 71 12" Light CMU ¼” Glass 71 ‐ 79 8" Moderate CMU ¼” Glass 80 ‐ 96 8" Moderate CMU ¼” Glass 96 ‐ 113 8" Moderate CMU ¼” Glass 113 ‐ 116 8" Moderate CMU ¼” Glass 117 ‐ 131 8" Light CMU ¼” Glass 131 ‐ 133 8" Light CMU ¼” Glass 133 ‐ 160 8" Light CMU ¼” Glass 161+ 8" Light CMU ¼” Glass 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 Protection Low Very Low Controlled Perimeter Parking and Roadways (Explosive Weight I) (Explosive Weight II) Table 1 Table 2 Table 3 Table 4 II. Cost Increase for Building Components to Comply with AT/FP Level of Protection Low Very Low 28 Controlled Perimeter Parking and Roadways (Explosive Weight I) (Explosive Weight II) Table 5 Table 6 Table 7 Table 8 29 Windows Inner Pane 5 x 1/8" Glass 4 x 5/32" Glass 4 x 5/32" Glass 4 x 5/32" Glass 4 x 5/32" Glass 4 x 5/32" Glass 2 x 3/16" Glass 2 x 5/32" Glass 2 x 5/32" Glass 2 x 5/32" Glass 2 x 1/8" Glass 2 x 1/8" Glass 2 x 1/8" Glass 2 x 1/8" Glass 2 x 1/8" Glass 2 x 1/8" Glass Construction Type Doors Door Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal Backing Wall Hollow Metal ‐ Laminate 4 x 0.045" PVB 3 x 0.045" PVB 3 x 0.045" PVB 3 x 0.045" PVB 3 x 0.045" PVB 3 x 0.045" PVB 0.060" PVB 0.060" PVB 0.060" PVB 0.060" PVB 0.030" PVB 0.030" PVB 0.030" PVB 0.030" PVB 0.030" PVB 0.030" PVB Thk. 4.5" 4.5" 4.5" 4.5" 4.5" 4.5" 4.5" 4.5" 4.5" ‐ ‐ ‐ ‐ ‐ ‐ ‐ Mat. Conc. Conc. Conc. Conc. Conc. Conc. Conc. Conc. Conc. ‐ ‐ ‐ ‐ ‐ ‐ ‐ Deck Metal Metal Metal Metal Metal Metal Metal Metal Metal Metal Metal Metal Metal Metal Metal Metal Roofs L 30' 30' 30' 30' 30' 30' 30' 30' 30' 30' 30' 30' 30' 30' 30' 30' W 6' 6' 6' 6' 6' 6' 6' 6' 6' 4' 4' 6' 6' 8' 8' 8' Sppt. Memb. 20K10 20K10 20K10 20K10 20K10 20K10 20K10 20K10 20K10 18LH02 18LH02 18LH02 18LH02 18LH02 16K9 16K9 30 5 7/21/2014 THANK YOU! DISCLAIMER This presentation and accompanying report were prepared by SSFM SSFM International, Inc. 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. 501 Sumner Street, Suite 620 Honolulu, HI 96817 Bennett Fung, P.E. [email protected] This presentation and accompanying report may not be copied for (808) 531-1308 commercial redistribution or dissemination without the explicit permission of SSFM International. 31 32 6