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<br />08/02/01 08: 07 FAX 81378:~1169 <br /> <br />HR Interstate <br /> <br />~020 <br /> <br />FOUNDATION AND SUP1PORT REQUIREMENTS (Col~ttnued) <br /> <br />TABLE 2 <br />PIER LOADING UNDER MA,iN I-BEAMS <br />DOUBLE-WIDE HOlh"ES <br /> <br />Pier <br />Spacing <br />Under <br />Main <br />"'B.ams <br />(Ft.) <br /> <br />20' WIDE H MES 24'WlDE HOME <br />Pier L..o8cI Pier Loed PIer Lolld PIer Loed Pf8r Lo8d PIer Loed <br />(Lbs) (Lbs) (L.b81 (Lb.) (UM) (Lb.) <br />20 PSF 30 PSF 40 PS F 20 PSF 30 PSF 40 PSF <br />Roof Roof Roo" Roof Roof Roof <br />Zone Zone Zoml Zone Zone Zone <br /> <br />2" . 2li WID! HOMES <br />PIer Loed .1_ ~ Pier l.oIId <br />(Lbs) (Lb.) (Lb.) <br />20 PSF :ib PSP 40 PSF <br />Roof Roof Roof <br />Zone . Zone Zone <br /> <br />U' WIDE HOMES <br />PIer Loed AIr u.d <br />(L.be) (LbtI) <br />20 PSF 40 PSF <br />Roof Roof <br />Zone Zon_ <br /> <br /> <br />NOTES: '" <br /> <br />1. See Table 4 for minimum footin~ sizes based on pIer loads and allowable soil bearing capacities. The footing sizes and <br />pier loads are minimums requlr td for the applicable conditions. The foot ng shall not be smaller than the pier It supports <br />or '44 square inches. <br /> <br />2. The maximum spacing of SUPPt)rts Is not to exceed 10 feet. <br /> <br />3. Where it is impractical to maintain spacing, such as in the a)de area, the average of the distance to each adjacent <br />support may be used to determine support requirements: for e);ample: If the distances to the adjacent supports were <br />6'-0" and e'~O". the average spi~clng would be 7'-0". <br /> <br />6'.0" 8'.0" <br />I < ) 1< >1 <br />1 l l <br />Pier A PierB PierC <br /> <br /> <br />The average spacing for pier e would be (6 + 6) I 2 = 7 It., themfore, <br />pier 8 would be designed 10r. 7 ft. pier spacing. <br /> <br />4. Concentrated loads at marrlagi! line (see Table 3). <br /> <br />5. The last line In the above Tabl, Is the weight per foot each main l-tbe.;lI'TI is carrying. Multiply this number by the span <br />a pier Is carrying to determine the required capacity 01 that pier. <br /> <br />" <br />