47.5 MB - The Whole Building Design Guide

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completely surrounded by water, retaining access on one side. Accessproblems affected all hospitals. West Jefferson Medical Centerhad planned to deploy their staff in two shifts, to allow the secondshift to stay at home until the storm had passed and then come torelieve the staff locked down in the hospital. Because of impededaccess, the relief staff could not get to the hospital, which put anadded burden on the initial staff, already nearing exhaustion.Figure 4-1:University Hospitalsurrounded by 4 feet ofwaterFigure 4-2: Evacuation of NewOrleans by helicopterOBSERVATIONS ON THE PERFORMANCE OF CRITICAL FACILITIES4-7
Hancock Medical Center in Bay St. Louis, Mississippi, although locatedoutside of the 500-year floodplain, experienced 3-foot deepflooding as a result of the storm surge (see Figure 4-3). Accessto the hospital was disrupted long before Katrina made landfallbecause, prior to the storm arrival, there was a 33-mile traffic backupon the road leading out of town. Access was important becauseall the functioning hospitals needed relief supplies, medical gases,water, and fuel for their emergency generators. In many cases, theonly way to resupply the facilities was by air, using large Chinookhelicopters. <strong>The</strong>se helicopters are too heavy for most roof structures,and to use them for emergencies in the future, a secondhelipad may be necessary on the site, requiring sufficient glide anglesfor landing and takeoff of the largest aircraft.Access to emergency services was also blocked by the water and,in some cases, by trees and utility lines that were knocked down.Once the hospitals had access restored, they were deluged bythe injured from nearby communities. Slidell Memorial Hospitaladministered 40,000 tetanus shots in the days after the storm.Hancock Medical Center saw 600 to 700 patients a day for up to 2weeks after the surge water receded.Figure 4-3:<strong>The</strong> lobby of HancockMedical Center was under3 feet of water.4-8 OBSERVATIONS ON THE PERFORMANCE OF CRITICAL FACILITIES
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Risk Management SeriesDesign Guidef
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Any opinions, findings, conclusions
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ational during and after a major di
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TARGET AUDIENCEThis manual describe
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Appendix A contains a list of acron
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Forster, FEMA; David Godschalk, Uni
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Chapter 2- Making Critical faciliti
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2.4.6 Utility Installations .......
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4.4.8 Utility Plumbing Systems.....
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avoid them when feasible. In cases
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It then crossed Florida into the Gu
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Figure 1-2: Mississippi coast SLOSH
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isks for the facility at the propos
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m Appoint a building program manage
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-Figure 1-3: Process flow chart for
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hazards, usually refers to a buildi
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occurrence during a specified time
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ut is moderate overall. Some hazard
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words, the acceptable performance o
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prior to the onset of this level of
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1.4 REFERENCESAmerican Society of C
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MAKING CRITICAL FACILITIES SAFE FRO
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m Land subsidence, which increases
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valley or the presence of obstructi
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2.1.1.1 Probability of Occurrence o
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year, a very low probability flood
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m FIRMs and Flood Insurance Studies
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Figure 2-3: Riverine flood hazard z
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have been prepared by the U.S. Army
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ABFEs represent the best estimate o
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The following characteristics that
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Figure 2-7 shows the general relati
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2.1.2.5 Hydrodynamic LoadsWater flo
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stillwater depth) and that waves pr
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Debris velocity: The velocity of th
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The most convincing evidence of the
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2.1.3.2 Summary of the NFIP Minimum
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complished through a State permit,
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Developed through a consensus proce
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2.2 CRITICAL FACILITIES EXPOSED TOF
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listed includes health hazards, los
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overview on performance-based desig
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Figure 2-12:Katrina’s storm surge
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Buoyancy and uplift: If below-grade
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acceptable, depending on the type o
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Metal components: Metal structural
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Emergency power generators: Generat
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Office records and police files: Wh
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2.3 REQUIREMENTS AND BESTPRACTICES
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terior drainage (on the land side);
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Slab-on-grade foundation on structu
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and debris and ice impact loads. Fl
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are capable of withstanding direct
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pressure, hydrodynamic loads, wave
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may significantly reduce the certai
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2.3.2.1 Elevation ConsiderationsThe
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Figure 2-30:Flood hazard zones inco
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path when designing and specifying
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ular attention to underfloor utilit
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2.3.5.4 Storage Tank InstallationsA
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2.4.2 SITE MODIFICATIONSA plan to m
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Mobilized floodwall: This category
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methods used to move other types of
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Even if a facility is unlikely to s
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Wastewater system components become
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Emergency barriers are measures of
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2.5 CHECKLIST FOR BUILDINGVULNERABI
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Table 2-3: Checklist for Building V
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FEMA, Protecting Building Utilities
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MAKING CRITICAL FACILITIES SAFE FRO
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flow is typically 6,000 to 12,000 f
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Tornado: This is a violently rotati
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Figure 3-3: Design wind speeds for
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Exposure: The characteristics of th
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Internal pressure (building pressur
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Figure 3-7:Schematic of internalpre
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Figure 3-8: Relative roof uplift pr
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larities will normally be based on
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spread in both of those storms. Pri
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and subsequent progressive failure;
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3.2 CRITICAL FACILITIES EXPOSED TOH
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Wall coverings, soffits, and large
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oof panels were applied over metal
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3.2.2 Evaluating Critical Facilitie
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Step 2: Perform a field investigati
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3.3.1.1 SiteWhen selecting land for
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schools are required to be designed
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As part of the detailed design effo
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steel. FEMA Technical Bulletin, Cor
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a window submittal should show that
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and limited uplift resistance of de
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Figure 3-23:View looking down at th
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m For buildings that have mechanica
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sionals should also specify the att
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Figure 3-31:Door sill pan flashing
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Adjustable jamb/head weatherstrippi
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E 2112 provides guidance on the des
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Soffits: Depending on the wind dire
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mph, those used for hurricane shelt
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Figure 3-47:These four ties werenev
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m Install ties as the brick is laid
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At the hospital shown in Figure 3-5
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etween the hospital and the medical
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metal panels were attached with con
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avoid blow-off. Stainless steel or
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If the roof system is fully adhered
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Figure 3-60:View of the underside o
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ities. For FMG-insured facilities,
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Figure 3-65:The original modifiedbi
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Figure 3-66:If mechanically attache
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Loads and Attachment Methods 9Infor
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Fan cowling attachment: Fans are fr
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Condenser attachment: In lieu of pl
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Boiler and exhaust stack attachment
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Figure 3-78:Collapsed hospital ligh
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Figure 3-80:The antenna tower atthi
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Table 3-3: Risk Reduction Design Me
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Table 3-3: Risk Reduction Design Me
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Chapter 4 for information on the pe
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Figure 3-83:Open walkways donot pro
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ASTM E 1996 specifies five missile
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ASCE 7 refers to ASTM E 1996 for mi
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For interior non-load-bearing mason
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m For structural metal roofs, it is
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Mechanically attached and air-press
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Figure 3-92:To avoid walkway padblo
Page 262 and 263: 3.4.4.2 Mechanical PenthousesBy pla
Page 264 and 265: To enhance the wind performance of
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Page 268 and 269: to power generation stations and by
Page 270 and 271: occupants can have bottled water pr
Page 272 and 273: Table 3-4: Recommendations for Desi
Page 274 and 275: Strong and violent tornadoes can ge
Page 276 and 277: For critical facilities located in
Page 278 and 279: Retrofitting a shelter space inside
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Page 282 and 283: Figure 3-106:The school’s built-u
Page 284 and 285: 3.6.2 Building EnvelopeThe followin
Page 286 and 287: Shutters are typically a more econo
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Page 290 and 291: Figure 3-116:The edge nailer on top
Page 292 and 293: Figure 3-118:The antenna at thishos
Page 294 and 295: 3.7 Checklist for BuildingVulnerabi
Page 296 and 297: Table 3-8: Checklist for Building V
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Page 300 and 301: 3.8 References and Sources ofAdditi
Page 302 and 303: American Society for Testing and Ma
Page 304: FEMA, Attachment of Brick Veneer in
Page 307 and 308: accompanied with suggestions on pos
Page 309 and 310: Hurricane Katrina emphasized the fa
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Page 315 and 316: Figure 4-4:Penthouse at the WestJef
Page 317 and 318: Figure 4-6:Repair of EIFS wallcover
Page 319 and 320: The primary cause of window breakag
Page 321 and 322: West Jefferson Medical Center lost
Page 323 and 324: 4.2.8 Mechanical and ElectricalSyst
Page 325 and 326: covering the fill cap and all vent
Page 327 and 328: emergency communications frequently
Page 329 and 330: mary and West Jefferson Medical Cen
Page 331 and 332: 4.3 EDUCATIONAL FACILITIES4.3.1 Bac
Page 333 and 334: 4.3.2 Effects of FloodingThe most d
Page 335 and 336: Figure 4-17:Broken windows atD’Ib
Page 337 and 338: St. Stanislaus High School in Bay S
Page 339 and 340: 4.3.6 Structural SystemsMost of the
Page 341 and 342: The St. Stanislaus High School camp
Page 343 and 344: Figure 4-27:Metal roof covering pee
Page 345 and 346: ment, especially HVAC systems, was
Page 347 and 348: Figure 4-30:Interior damage at Char
Page 349 and 350: m Doors should be designed to meet
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Page 353 and 354: 4.4.3 Effects of High WindsThe high
Page 355 and 356: Figure 4-33:Jackson County EOCFigur
Page 357 and 358: them experienced significant proble
Page 359 and 360: Figure 4-37:Back Bay Fire Company#3
Page 361 and 362: Figure 4-39:Gulfport Fire Station #
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Third District Fire Station in New
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Figure 4-44:Roof damage at HancockC
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underground tank for toilets and wa
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Figure 4-47:Generator mounted atgra
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Figure 4-49:Broken communicationsma
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erate without adequate emergency po
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FISFMAFMGFMRHMGPIBCICCICULPSMEPSMOB
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Building, enclosed. A building that
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Floodway. The channel and that port
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OOpenings. Apertures or holes in th
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FEMA Mitigation ProgramscFederal fu
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Table 1: Side-by-Side of FEMA Progr
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todial care facilities (including t
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aged windows with impact-resistant
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tions, and wastewater treatment pla
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