FEMA P55 Coastal Construction Manual, Fourth Edition - Mad Cad

More documents

Recommendations

Info

1 CHAPTER TITLE COASTAL CONSTRUCTION MANUAL 13 Constructing the Building This chapter provides guidance on constructing residential buildings in coastal areas, which presents challenges that are usually not present in more inland locations (risk of high winds and coastal flooding and a corrosive environment) and other challenges such as the need to elevate the building. Considerations related to these challenges include the need to: Perform more detailed inspections of connection details than those performed in noncoastal areas to ensure the details can withstand the additional hazards found in coastal areas Include with the survey staking the building within property line setbacks and at or above the design flood elevation (DFE) (see Section 4.5 for additional coastal survey regulatory requirements) Ensure that all elements of the building will be able to withstand the forces associated with high winds, coastal flooding, or other hazards required of the design Ensure that the building envelope is constructed to minimize and withstand the intrusion of air and moisture during high-wind events (see Section 11.3.1.4) Provide durable exterior construction that can withstand a moist and sometimes salt-laden environment Protect utilities, which may include placing them at or above the DFE COASTAL CONSTRUCTION MANUAL CROSS REFERENCE For resources that augment the guidance and other information in this Manual, see the Residential Coastal Construction Web site (http://www.fema.gov/ rebuild/mat/fema55. shtm). 13-1
13 CONSTRUCTING THE BUILDING Volume II Constructing coastal residential buildings on elevated pile foundations present the following additional challenges: The difficulty of constructing a driven pile foundation to accepted construction plan tolerances The difficulty of constructing a building on an elevated post-and-beam foundation, which is more difficult than building on a continuous wall foundation This chapter discusses the construction aspects of the above challenges and other aspects of the coastal construction process, including the construction items that are likely to require the most attention from the builder in order for the design intent to be achieved. Although much of the discussion in this chapter is related to constructing the building to meet the architect’s and engineer’s design intent for existing and future conditions (such as erosion and sea-level rise), durability of the building elements is also important. Wood decay, termite infestation, metal corrosion, and concrete and masonry deterioration can weaken a building significantly, making it hazardous to occupy under any conditions and more likely to fail in a severe natural hazard event. Builders may find that the permitting and inspection procedures in coastal areas are more involved than those in inland areas. Not only must all Federal, State, and local Coastal Zone Management and other regulatory requirements be met, the design plans and specifications may need to be sealed by a design professional. Building permit submittals must often include detailed drawings and other types of information for all elements of the wind-resisting load path, including sheathing material, sheathing nailing, strap and tiedown descriptions, bolted connections, and pile description and placement. The placement of utilities at or above the DFE, breakaway walls, and flood equalization openings must be clearly shown. Site inspections are likely to focus on the approved plans, and building officials may be less tolerant of deviations from these approved construction documents than those in noncoastal areas. Inspection points are also discussed. 13.1 Foundation Construction Constructing a foundation in a coastal environment includes designing the layout, selecting the foundation type, selecting the foundation material with consideration for durability, and installing the foundation. Although pile foundations are the most common foundation type in Zone V and should be used in Coastal A Zones, shallow foundations, both masonry and concrete, may be acceptable elsewhere. Whether masonry, concrete, wood, or steel, all coastal foundation materials must be designed and installed to withstand the likelihood of high winds, moisture, and salt-laden air. See Chapter 10 for guidance on the design of coastal foundations. 13.1.1 Layout Surveying and staking must be done accurately in order to establish the building setback locations, the DFE, and the house plan and support locations. Figure 13-1 is a site layout with pile locations, batter boards, and setbacks and is intended to show the constraints a builder may face when laying out a pile-supported structure on a narrow coastal lot. There may be conflicts between what the contractor would like to do to prepare the site and what the environmental controls dictate can be done on the site. For example, leveling the site, especially altering dunes, and removing existing vegetation may be restricted. Furthermore, these 13-2 COASTAL CONSTRUCTION MANUAL
Page 1 and 2:
Coastal Construction Manual Princip
Page 3 and 4:
All illustrations in this document
Page 5 and 6:
PREFACE Volume II Chapter 8 - Site-
Page 7 and 8:
1 CHAPTER TITLE Contents COASTAL CO
Page 9 and 10:
Volume II CONTENTS Chapter 9. Desig
Page 11 and 12:
Volume II CONTENTS Chapter 11. Desi
Page 13 and 14:
Volume II CONTENTS 12.5 Water and W
Page 15 and 16:
Volume II CONTENTS 15.4.1 Evaluatin
Page 17 and 18:
Volume II CONTENTS Figure 9-10. Roo
Page 19 and 20:
Volume II CONTENTS Figure 11-3. Hou
Page 21 and 22:
Volume II CONTENTS Figure 11-47. Da
Page 23 and 24:
Volume II CONTENTS Chapter 15 Figur
Page 25 and 26:
Volume II CONTENTS Table 10-9. Adva
Page 27 and 28:
Volume II CONTENTS Example 8.4. Flo
Page 29 and 30:
1 CHAPTER TITLE COASTAL CONSTRUCTIO
Page 31 and 32:
Volume II PRE-DESIGN CONSIDERATIONS
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
8 DETERMINING SITE-SPECIFIC LOADS V
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
9 DESIGNING THE BUILDING Volume II
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Volume II DESIGNING THE FOUNDATION
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
10 DESIGNING THE FOUNDATION Volume
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Volume II Designing the builDing en
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246: Volume II Designing the builDing en
Page 285 and 286: 12 INSTALLING MECHANICAL EQUIPMENT
Page 295: 12 INSTALLING MECHANICAL EQUIPMENT
Page 299 and 300: 13 CONSTRUCTING THE BUILDING Volume
Page 329 and 330: 14 MAINTAINING THE BUILDING Volume
Page 341 and 342: 1 CHAPTER TITLE COASTAL CONSTRUCTIO
Page 343 and 344: Volume II RETROFITTING BUILDINGS FO
Page 345 and 346: Volume II RETROFITTING BUILDINGS FO
Page 347 and 348:
Volume II RETROFITTING BUILDINGS FO
Page 349 and 350:
Page 351 and 352:
Page 353 and 354:
Page 355 and 356:
Page 357 and 358:
Page 359 and 360:
Page 361 and 362:
Page 363 and 364:
1 CHAPTER TITLE Acronyms COASTAL CO
Page 365 and 366:
Volume II ACRONYMS H HMA Hazard Mit
Page 367 and 368:
Volume II ACRONYMS T TMS The Masonr
Page 369 and 370:
GLOSSARY Volume II Basement - Under
Page 371 and 372:
GLOSSARY Volume II Conditions Great
Page 373 and 374:
GLOSSARY Volume II F Federal Emerge
Page 375 and 376:
GLOSSARY Volume II G Gabion - Rock-
Page 377 and 378:
GLOSSARY Volume II Location - The l
Page 379 and 380:
GLOSSARY Volume II O Open foundatio
Page 381 and 382:
GLOSSARY Volume II Risk tolerance -
Page 383 and 384:
GLOSSARY Volume II safe living cond
Page 385 and 386:
GLOSSARY Volume II Z Zone A - Under
Page 387 and 388:
INDEX Volume II Building envelope,
Page 389 and 390:
INDEX Volume II stillwater flood de
Page 391 and 392:
INDEX Volume II Floodborne debris d
Page 393 and 394:
INDEX Volume II I IBHS (see Insuran
Page 395 and 396:
INDEX Volume II date of constructio
Page 397 and 398:
INDEX Volume II Seawall, 7-7, 7-17,
Page 399 and 400:
INDEX Volume II velocity pressure,
show all

FEMA P55 Coastal Construction Manual, Fourth Edition - Mad Cad

Create successful ePaper yourself

Delete template?

Save as template?