FEMA P55 Coastal Construction Manual, Fourth Edition - Mad Cad

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Volume II DETERMINING SITE-SPECIFIC LOADS 8 EQUATION 8.4. VERTICAL (BUOYANT) HYDROSTATIC FORCE where: Fbuoy = vertical hydrostatic force (lb) resulting from the displacement of a given volume of floodwater COASTAL CONSTRUCTION MANUAL Figure 8-7. Lateral flood force on a vertical component (Eq. 8.4) w = specific weight of water (62.4 lb/ft3 for fresh water and 64.0 lb/ft 3 for saltwater) Vol = volume of floodwater displaced by a submerged object (ft 3) 8-19
8 DETERMINING SITE-SPECIFIC LOADS Volume II Figure 8-8. Vertical (buoyant) flood force; buoyancy forces are drastically reduced for open foundations (piles or piers) 8.5.8 Wave Loads Calculating wave loads requires the designer to estimate expected wave heights, which, for the purposes of this <strong>Manual</strong>, are limited by water depths at the site of interest. These data can be estimated using a variety of models. <strong>FEMA</strong> uses its Wave Height Analysis for Flood Insurance Studies (WHAFIS) model to estimate wave heights and wave crest elevations, and results from this model can be used directly by designers to calculate wave loads. Wave forces can be separated into four categories: From nonbreaking waves – can usually be computed as hydrostatic forces against walls and hydrodynamic forces against piles From breaking waves – short duration but large magnitude From broken waves – similar to hydrodynamic forces caused by flowing or surging water CROSS REFERENCE For additional guidance in calculating wave loads, see ASCE 7-10. 8-20 COASTAL CONSTRUCTION MANUAL
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Coastal Construction Manual Princip
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All illustrations in this document
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PREFACE Volume II Chapter 8 - Site-
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1 CHAPTER TITLE Contents COASTAL CO
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Volume II CONTENTS Chapter 9. Desig
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Volume II CONTENTS Chapter 11. Desi
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Volume II CONTENTS 12.5 Water and W
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Volume II CONTENTS 15.4.1 Evaluatin
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Volume II CONTENTS Figure 9-10. Roo
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Volume II CONTENTS Figure 11-47. Da
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9 DESIGNING THE BUILDING Volume II
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12 INSTALLING MECHANICAL EQUIPMENT
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13 CONSTRUCTING THE BUILDING Volume
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14 MAINTAINING THE BUILDING Volume
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Volume II RETROFITTING BUILDINGS FO
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1 CHAPTER TITLE Acronyms COASTAL CO
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Volume II ACRONYMS H HMA Hazard Mit
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Volume II ACRONYMS T TMS The Masonr
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GLOSSARY Volume II Basement - Under
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GLOSSARY Volume II Conditions Great
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GLOSSARY Volume II F Federal Emerge
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GLOSSARY Volume II G Gabion - Rock-
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GLOSSARY Volume II Location - The l
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GLOSSARY Volume II O Open foundatio
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GLOSSARY Volume II Risk tolerance -
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GLOSSARY Volume II safe living cond
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GLOSSARY Volume II Z Zone A - Under
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INDEX Volume II Building envelope,
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INDEX Volume II stillwater flood de
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INDEX Volume II Floodborne debris d
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INDEX Volume II I IBHS (see Insuran
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INDEX Volume II date of constructio
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INDEX Volume II Seawall, 7-7, 7-17,
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INDEX Volume II velocity pressure,
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FEMA P55 Coastal Construction Manual, Fourth Edition - Mad Cad

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