FEMA 453 Design Guidance for Shelters and Safe Rooms

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deformed, and transfer them to the underlying beams, trusses, girders, shear walls, and columns that provide the global structural resistance. These structural systems must also be able to develop uplift forces and load reversals that may accompany these extreme loading conditions. Uplift forces and load reversals are typically applied contrary to the conventional design loads and, therefore, details must be developed that account for these contrary patterns of deformation (see Figure 2-7). Seismic detailing that addresses ductile behavior despite multiple cycles of load reversals are generally well suited for all of these extreme loading conditions and building-specific details must consider each threat condition. Some construction materials, however, are better suited to developing a load path that can withstand loads from multiple directions and events. Cast-in-place reinforced concrete and steel moment frame construction is more commonly detailed to provide load paths than in "progressive collapse" designs utilizing panelized or masonry load-bearing construction. Nevertheless, appropriate details must be developed for nearly all structural systems. Structural deSign criteria Figure 2- effects of uplift and load reversals 2-
Figure 2-8 Flat slab failure mechanisms Floor slabs are typically designed to resist downward gravity loading and have limited capacity to resist uplift pressures or the upward deformations experienced during load reversals that may precipitate a flexural or punching shear failure (see Figure 2-8). Therefore, floor slabs that may be subjected to significant uplift 2- Structural deSign criteria
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Risk Management Series Design Guida
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Any opinions, findings, conclusions
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This guidance focuses on safe rooms
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protect occupants until law enforce
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of best practices (based on current
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Project Advisory Panel: Ronald Bark
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1.7.1.1. Tornado.or.Short-term.Shel
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2.6.6. RM1.and.RM2.Reinforced.Mason
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4.5. Community.Shelter.Operations.P
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FIgUREs chapter 1 Figure.1-1.. Terr
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Figure.2-16.. Spray-on.elastomer.co
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chapter 4 Figure.4-1.. Preparedness
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in response to the manmade CBRE thr
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decides not to chance fate and cons
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Although operational security measu
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Table 1-2: Safe Evacuation Distance
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Figure 1-1 terrorism by event 1980
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odorless. Their effects occur mainl
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Figure 1-3 radioactive materials sm
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Table 1-3: Correlation of ISC Level
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Table 1-4: ISC CBR Levels of Protec
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m It is partially shielded by the s
Page 45 and 46: m Single-use shelters. Single-use s
Page 47 and 48: structure or a new structure to be
Page 49 and 50: m Territoriality (promotes a sense
Page 51 and 52: Figure 1- examples of internal shel
Page 53 and 54: Figure 1-9 examples of internal she
Page 55 and 56: loading depending upon the building
Page 57 and 58: model building codes all have provi
Page 59 and 60: Figure 1-10 national Weather servic
Page 61 and 62: operations and maintenance plan. De
Page 63 and 64: For tornado shelters, the most crit
Page 65 and 66: Reference Standard 6-1 Photolumines
Page 67 and 68: every building should have an emerg
Page 69 and 70: Three methods are followed for the
Page 71 and 72: partitions for areas of about 12,00
Page 73 and 74: the 2006 editions of nFPa 101, Life
Page 75 and 76: Figure 1-13 operations Zones, casua
Page 77 and 78: Figure 1-1 nrP-cis emergency decont
Page 79 and 80: Figure 1-1 example of Pentagon stag
Page 81 and 82: Figure 1-19 site and evidence colle
Page 84 and 85: 2.1 OVerVieW Structural deSign crit
Page 86 and 87: affect the hazard potential of the
Page 88 and 89: 2.2.1 Blast effects in low-rise Bui
Page 90 and 91: As an example, panelized constructi
Page 92 and 93: 2.3 hardened cOnStructiOn 2.3.1 Str
Page 94 and 95: Protective design further requires
Page 98 and 99: pressures, such that they overcome
Page 100 and 101: façade materials intact and attach
Page 102 and 103: 2.4 neW cOnStructiOn The design of
Page 104 and 105: Blast-resistant detailing requires
Page 106 and 107: the slab, the slab reinforcement mu
Page 108 and 109: spacing of 16 inches that extends i
Page 110 and 111: In order for the glazing to realize
Page 112 and 113: precast panels, the spacing of the
Page 114 and 115: to a column or a vehicle-borne expl
Page 116 and 117: without any means of attachment or
Page 118 and 119: polycarbonate glazing can be mixed
Page 120 and 121: Rigid catch bar systems were design
Page 122 and 123: stainless steel cables connected wi
Page 124 and 125: Alternatively, an unreinforced maso
Page 126 and 127: Figure 2- 9 Metal stud blast wall I
Page 128 and 129: 2.5.3 checklist for retrofitting is
Page 130 and 131: Shearwalls consist of straight or d
Page 132 and 133: Light wood frame structures do not
Page 134 and 135: eam column joints, all member stres
Page 136 and 137: Steel moment frame structures provi
Page 138 and 139: Steel frames with infill masonry wa
Page 140 and 141: esponse to 500 pounds of TNT at a s
Page 142 and 143: to provide ductile performance. The
Page 144 and 145: Unless sited in a seismic zone, con
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Precast concrete frames and shearwa
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uilding. Locating the shelter in th
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Unreinforced load-bearing masonry b
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damage in response to 500 pounds of
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Floor slabs within an interior stai
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3.1 oVeRVieW This chapter describes
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m Class 2. This class also includes
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may be necessary for people to occu
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3.3 SaFe RooM CRiTeRia This section
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interior room is preferable to a ro
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m Penetrations. Measures for reduci
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Figure 3- hinged covers facilitate
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enclosure subjected to wind and buo
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Many models of these indoor air pur
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designing and building ultra-high e
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Table 3-2: Leakage per Square Foot
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3.5 opeRaTionS anD MainTenanCe For
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m Turn on a radio or TV in the safe
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Tape, plastic, and carbon dioxide d
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m Isolation dampers. Correct damper
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3.7 CoMMiSSioninG a CLaSS 1 CBR SaF
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have been appropriately placed to p
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m To develop an understanding of th
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CBR ThReaT pRoTeCTion Figure 3- Tas
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Task 4. Determine How Much Filtered
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Pre-heat Coil Module. This module c
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address system or the single-switch
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the Homeland security digital Libra
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the national Fire Protection associ
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From established reporting mechanis
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An Emergency Operations Center (EOC
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m Weapons of Mass Destruction-Civil
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dHs/FEma and the office for domesti
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The 48 seconds do not include the t
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Figure 4-5 High-rise buildings and
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m In the initial phase (hours and d
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designated. The following is a list
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m Coordinating shelter evacuation p
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4.5.5 notification manager The Noti
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Table 4-1: Shelter Equipment and Su
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Toilets would be needed by the occu
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4.5.8.7 Emergency Equipment Credenz
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FEma’s United states Fire adminis
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4.7.3 event safety procedures The f
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4.9 training and inFormation Employ
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Bureau of Alcohol, Tobacco, Firearm
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Federal Emergency Management Agency
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Phan, L.T., and Simiu, E. 1998. The
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Army TM 5-853-4, Security Engineeri
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Corps of Engineers Guide Specificat
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Addresses workplace vulnerability t
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State of Florida Shelter Plan, Flor
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Management (2003) http://floridadis
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UL 586, High-Efficiency, Particulat
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C CA California C&C components and
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F FBI Federal Bureau of Investigati
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J JFO Joint Field Office K kb kilob
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O O.C. on center OG outer garments
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U UBC Building Code UCRL University
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