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<br />
<br />Figure 4.43 Cross Bracing Locations
<br />
<br />Table 4.19
<br />
<br />MINIMUM SAWN TIMBER CROSS BRACING
<br />(fo~ U PI' .Ind load)
<br />
<br />.",",nur.clu",d Ho1ihlofVutlul!lknt>..AbouGr.d11 (ft,)
<br />HcrrelA'nllth
<br /> (ft.) , . , . , . . "
<br /> 3 Bne<td Bays I
<br /> " ..ltll.~'X ("
<br /> .,
<br /> " 3Bu""d80yswilli 1"s6'_rsI
<br /> " ~
<br />, " I
<br /> 311rlcede.ys..ltlll".8'~rs
<br /> .. I
<br /> 4 Br¸llyl, I
<br /> " .llh2's6"
<br /> _..
<br /> " 4Br.e<Ildlloys..lth2"xS"Mont>en
<br />
<br />H'-O'
<br />Length = 42' O'
<br />
<br />..
<br />
<br />o:'~
<br />,,' "" ~
<br />
<br />~ ..
<br />~s;:
<br />
<br />
<br />2" K6'
<br />Typ.
<br />
<br />
<br />.~~
<br />
<br />~'/d~"'~//.c:"
<br />(.$;..; "~~~Z::?\~
<br />--,,"-' _0...,\:"'/:"^~",,
<br />'/4,V/~,{J;::,/;,~, ~,0/;,'
<br />'<'''''/'''';:':'.
<br />
<br />-:0'-;'/ ,,,/,:;,-_/./,/;/ /
<br />;';:ij~'(::,--;((~//~,S'.
<br />'~,\,'_'/:~:00.-\::-:'~::"
<br />h...:,:\,""":'':i'''''.~ '-'-'
<br />'/~/>.>;:';/'/"':'..S0;':A"
<br />'/~ <.:,~ '- ~ <v ///:>.
<br />
<br />Figure 4.44 Cross Bracing-Single Section
<br />
<br />A 28 foot wide manufactured home in the same
<br />area would, as shown in Figure 4.45, require use
<br />of two-by six-inch sawn timber diagonal bracing.
<br />
<br />211'-0'
<br />
<br />Length :::: 42' 0"
<br />
<br />
<br />Figure 4.45 Cross Bracing-Double Section
<br />
<br />End Bracing
<br />In addition to cross bracing across the width of
<br />the manufactured home to counteract longitudinal
<br />wind loads, the end of the manufactured home will
<br />also experience wind loads. The end bays at each
<br />end of the manufactured home must, therefore,
<br />be braced as shown in Table 4.20, based on the
<br />same governing equation for wood cross bracing
<br />previously presented,
<br />
<br />Table 4.20
<br />
<br />MINIMUM SAWN TIMBER BRACING AT EACH END 1
<br />
<br />WInd Load = 25 pst
<br />Vertical MRTber
<br />Sp!lclng (fL)
<br />,
<br />
<br />Height of Vertical r&:rrber Above Grade (H.)
<br />
<br />,
<br />
<br />.
<br />
<br />10
<br />
<br />.
<br />
<br />10
<br />
<br />
<br />)
<br />
<br />IlWlere the wind 10000d = 15 psI, 2" by 3" sawn tlrrber bracing
<br />at each end Is IIcceptable at all vertical narber 'spacings and
<br />height above grade values slwNn.
<br />
<br />Connections
<br />In the design of an elevated foundation system,
<br />there will be numerous connections which will
<br />differ depending upon the type of elevated foun-
<br />dation design chosen and the loads anticipated.
<br />Connection points are shown in Figure 4.46 and
<br />can be summarized as follows:
<br />
<br />( 1) Vertical member and horizontal support
<br />beams.
<br />
<br />(2) Manufactured home I-beams to horizontal
<br />support beams.
<br />
<br />62
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