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<br />TABLE OF CONTENTS <br /> <br />INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . <br />CHAPTER I . . . . . . . . . . . . . . . . . <br />Overview. .' ..... . . . . . . . . . . , . . . . . <br />Manufactured Home Characteristics. . . , . . . <br />Conventional Manufactured Home <br />Installation Techniques. . . . . . . . . . . . . . , . . . . <br />Effects of Flooding on Manufactured Homes. <br />Regulatory Requirements. . . . . . . . . . <br /> <br />. 1 <br />.3 <br />3 <br />3 <br /> <br />5 <br />8 <br />. . . 11 <br /> <br />CHAPTER II . . . . . . . . . . . . <br />Flood and Wind Hazards. . <br />Hazards From Floods. . . . . <br />Wind Hazards. . . . . . . . . . . . . . . . . <br /> <br />15 <br />.15 <br />. . .15 <br />.17 <br /> <br />CHAPTER III ........................... <br />Elevation and Anchoring Techniques. . . . . . . . <br />Elevation on Fill . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Elevated Foundations. . . . . . . . . . . . . . . . . . . . . . . . . <br />Anchoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Evacuation ...... ....................... <br /> <br />. .19 <br />. . .19 <br />. . .19 <br />. . . . " ...21 <br />. . . .28 <br />. . . . .31 <br /> <br />CHAPTER IV..................... <br />Design of Elevated Foundations . . . . . . . . . . . <br />A. Flood Forces and Their Application . . . . . .. .... . . . . . <br />Hydrostatic Forces. . . . . . . . . . . . . . . . . . . <br />Lateral Forces ....... . . . . . . . . . .... . . <br />Buoyancy . . . . . . . . . . . . . " ............ <br />Hydrodynamic Forces . . . . . . . . . . . . . . . . . . . . <br />Impact Forces ................. <br />Scour ..................... <br />Design Loads. . . . . . . . . . . . . . . . . . . <br />B. Evaluation of Elevated Foundations. . . . . . <br />Design Forces and Loads . . . . . . . . . . . . . . .' ...... <br />Vertical Support Members. . . . . . . . <br /> <br />Piers. . . . . . . . . . . . . . . . . . . . . .. ...... <br />Posts and Piles ...............,............ <br />C. Bracing Support and Connections for <br />Elevated Foundations ,".' . . . . . . . . . . . <br />Horizontal Support Beams '.... <br />Cross Bracing ....,..,...... <br />End Bracing. . . .' ..,... . <br />Connections . . . . . . . . . , . . . . . . . .. ...... <br />Horizontal Beam <br />Chassis I-Beams .....,.. <br />Cross Bracing .......,.... .............,..... <br />End Bracing . . . . . . .. ....... <br />Longitudinal Support Beams. <br /> <br />. . .33 <br />. . .33 <br />. . .34 <br />. . .34 <br />. . .34 <br />. .35 <br />36 <br />. . .39 <br />. . .39 <br />. . .41 <br />. . .45 <br />. . .45 <br />. . .48 <br />.48 <br />. . .53 <br /> <br />. . . .. .58 <br />. . . . . .58 <br />. . .60 <br />. . .62 <br />. . .62 <br />. .63 <br />. .64 <br />.... .66 <br />67 <br />. .68 <br />