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<br /> F" 't t �¢7"tl� . ''y '. — — — — — -- ir:,,,,r9;„_„: _
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<br /> section width. Find the group of rows corresponding to the selected support spacing. Oa 111,E D/OS
<br /> The values in the intersecting cells are the loads for the frame, perimeter, and marriage i ... /
<br /> line supports respectively. JO
<br /> �- � _,
<br /> Loads on supports of a given type (frame, perimeter, or marriage)can be assumed to
<br /> be equal if support spacing is equal. However, if different support spacings are used -� 2� `
<br /> then each support with a different spacing should be calculated separately. {i+ ; `+` ''' ` '�Ft'" I
<br /> Note the location and load required of each support on the sketch. , a*
<br /> "• � }e+ `�
<br /> TABLE 7. LOAD ON FRAME AND PERIMETER SUPPORTS FOR HOMES REQUIRING PRIM.._ 'jR.L.QGKWG',, ::`
<br /> r • - .. • • Roof,toad zone and max:section width °.:,‘;t".,.N,,I'`; n 4 '-.-r£1 ',
<br /> . . .•• South(20'ps.f) Middle(30 psf).` r 'Iiortfr(40'pst),.'' .
<br /> Maximum `
<br /> ' •• "Location 12 ft 14 ft • , 16 ft': 12 ft. 14ft:�• ft• 16 • 12 lei 14 ft 16 ft;'
<br /> spacing' - _ , .
<br /> Frame 965 1060 1150 965 1060 1150 965 1060 1150
<br /> i. 4 ft Perimeter`. 1190 1360. 1550 " 1475 1670 1900 ;. _1760 1985 2250
<br /> • Marriage-. 2055 2475 2860 2520 3020 3480 2990 3570 4100
<br /> Frame 1450 1585 ,1715 • 1450 .1.585 1715 1450 • 1585- - 1715 =
<br /> 6 ft Perimeter. 1780 2035 2325 2210 2505 2850 2640 2975 3375
<br /> - Marriage.;' 3080 3710 - 4290 3780 4530 - 5220 _ 4480 5350 . 6150
<br /> - Frame:•.' 1925 2115 2285 1925 2115 2285 1925 2115 2285
<br /> 8 ft' • Perimeter-, `2375 _ 2715," 3100 ,.:__-.2950= . 3340 . :- :3800 ___3520.. 3970' -. 4500
<br /> Marriage, 4110 4950 5720 5040 6040 6960 5975 7135 8200
<br /> ' Frame:' 2405 2645 2860 - 2405 • 2645 2860- 2405 '2645 2860
<br /> `- loft-. • " Perimeter
<br /> SEE 8FT ROW SEE 8FT ROW SEE 8FT ROW
<br /> Marriage
<br /> I I
<br /> STEP 4. SELECT FOOTING MATERIAL
<br /> Select one of the products and materials from Table 8 for the footings.
<br /> TABLE 8. FOOTING MATERIALS
<br /> .Materiafr' • • Appropriate Use,:. Specification ' -. • •
<br /> Minimum 6"thick poured-in-place concrete pads,slabs,or ribbons with at least a 28
<br /> Poured concrete All soil types day compressive strength of 3,000 psi.Cast-in-place concrete footings may also
<br /> require reinforcing steel based on acceptable engineering practice,the design
<br /> D loads,and site specific soil conditions.
<br /> ' Minimum 4.thick nominal precast concrete pads meeting or exceeding ASTM C •
<br /> Pre-cast concrete. All soil types 90-02a Standard Specification for LoadBearing Concrete Masonry Units,Without_
<br /> 77 =-• reinforcement with at least a 28-day compressive strength of 500 psi
<br /> O Use in accordance with the pad manufacturer's instructions.Must be certified for
<br /> ij ABS plastic Stable soils use in the soil classification at the site,listed and labeled for the required lead ca-
<br /> .1 ; pacity.
<br /> J -
<br /> • ' Consult system manufac - •
<br /> Proprietary systems. • rarer Consult system manufacturer. -`
<br /> �,* {i i4� far,�iyEi, �'t i�l.'�� �Yr 3 Cl c cr <k Y r R, +'
<br /> 7 f !^`.,`t.p., ',�4; aY �+�}• a. 4 'a.. iF,,,a,r e it 0} a`,": r1 ,,{-}� ` ;,r R-04 N`.
<br /> YE
<br /> INCia
<br /> -' .?...4.:,,,,,' PPP-R tr t� t, <P 'a.{ '•+ }N .1F,' ?"f,t P--m! .y tiu� i�7CTP-.
<br /> L M {4A..16 foottii 61,:0r0.0 ,14140�ist + tot . ;or d1 d f�
<br /> p�f , n ,: '� f µ b+ r,., sr a.^i ty+ Ltr �u + t, ���ik�
<br /> ' ; y fbotlOt*. .0 600r304/.:00(-4 b 614fit b 010 .4'-�se . V.,,ip d�,f�'e
<br /> c F ,t Cortr1plexe:E'xtO'ri`ifi r Wo (t`, STEP INS 4EtkGROUN ME I LI A*
<br /> ., ,
<br /> - ' '4,1�R T1R�E r i el `Q Se trfP,INIT.,
<br /> f~ F y, Frost protection.When se
<br /> .. �&Cr'. �X•Y`�. ''�'ill'.•'+. .: -fiv�. I ,�4a, rdetr` .l� +�`.;.:A'�i!ws,�'et, r' .a., iw._
<br /> lecting footing materials:
<br /> C STEP 5. SIZE FOOTINGSbear in mind the need for
<br /> frost protection. Not all foot-
<br /> Once the load on the footing and the soil-bearing capacity are known, calculate the ing materials are suitable (1.29/ yy
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