Laserfiche WebLink
<br />20P11 <br /> <br />2~ sl <br /> <br /> <br />Figure 4.36 Manufactured Home <br />Design Conditions <br /> <br />MAXIMUM VERTICAL. MEMBER L.OAD [pol,lnd.l <br /> <br /> <br />Figure 4.37 Vertical Member Loads <br /> <br />VERTJCAL MEMBER CAPACITV (pooJnd. per ..ember)' <br />WJr>d Desij"ll" 25 pst <br />JbnI!WldU "14 rwt <br /> <br /> <br />IMt,ltnrneap.oeJl7 llmlt..:! to bes.llllJeapoelty of .oJll I.... Jt "oil <br />capoIelt7 II 4000 pd, that be.,.".. tile IJmJtil\li: t.eto. In delennlnlnr <br />eOll.flrur.llonorendb.....itor....IIlSlbelne.....'ed. <br />2t...nrth hdet.rmIneolu tot'l hii'll! .bow..ndbel""I'.'de..lth deptllot <br />.me.tnontl'.....t..the.<llt.equ<<ltot"''''ll'ht.boV.r..d.butll.Otl...thl.n <br />,Il reet pi... tb..ddltIOllof.IX>U.<lepthup..yj"".11dhcuued. <br />3Rourhdi"","Slon.. tbnInsl di....,.ion..lll be 1/2 ineh I.up" .Jdeltn <br />Iqu'''pooh. <br />fRo"8'fl dlmonsloo U die...t.. or round m.mer. <br /> <br />!6' <br /> <br />Figure 4.38 Vertical Member Selection <br /> <br />In addition to wood posts or piles, steel pipe, <br />steel structural sections, and concrete piies can <br />be considered for elevated foundations. A presen- <br />tation on the design methods for these materials <br />, is beyond the scope of this manual and assistance <br />of a registered professional engineer is recom- <br />mended if these materials are considered. <br /> <br />C. BRACING SUPPORT AND <br /> <br />CONNECTIONS, FOR ELEVATED <br /> <br />FOUNDATIONS <br /> <br />Having determined the size, length, and spac- <br />ing of the vertical members, the need for and <br />design of horizontal supports, diagonal bracing, <br />and connection details must be determined. In ad- <br />dition, where ground anchors are not used, the <br />manufactured home must be securely connected <br />to the elevated foundation. Figure 4.39 indicates <br />where loading is applied to an elevated founda- <br />tion system and what components of the elevated <br />foundation must withstand anticipated loading. <br /> <br />Horizontal Support Beams <br />Where posts or piles are used to elevate the <br />manufactured home, a structural member (hori- <br />zontal support beam) must be connected between <br />vertical members and run underneath the manu- <br />factured home to support the design loads as <br />shown in Figure 4.40. <br />Horizontal cross members must be capable of <br />supporting the dead load and floor live load of the <br />manufactured home, as well as wind and roof live <br />loads. At a five to 10 foot spacing of posts or piles <br />the total weight including dead (20 psf), live (40 <br /> <br />58 <br />