|
11,-1. --1:;,--71t I (i Th:
<br /> �S#ti;
<br /> _- Conforms to
<br /> I I section width. Find the group of rows corresponding to the selected support spacing. ' I 1,1 S�5. ;1�,attuu�tiicss i
<br /> The values in the intersecting cells are the loads for the frame, perimeter, and marriage .,. - a`� ,'-! ;1 �,1//0/
<br /> ."ox
<br /> i line supports respectively. �.,,�,
<br /> I
<br /> r.A�V. `•. T4 r 5.rir•'1
<br /> Loads on supports of a given type(frame, perimeter, or marriage)can be assumed to C I a o•� • .---r
<br /> bee equal if support pport spacing is equal. However, if different support spacings are usedir
<br /> then each support with a different spacing should be calculated separately. • '• ���
<br /> Note the location and load required of each support on the sketch. '''r; f�_" - {L : `
<br /> A.TABLE 7. LOAD ON FRAME AND PERIMETER SUPPORTS FOR HOMES REQUIRING PRIM•• •Et;at..00KiNG",, -.
<br /> 4:=:•= Roof load zone and max''ttection width # jx "ti:;=;.;••^ �,
<br /> to.
<br /> South(20 s Middle
<br /> (30 ps,,) koitf 4Q' `Maximum
<br /> ' spacing Location 12 ft 14 ft: 18 ft 12 ft ,16 12ft. 14ft 16 ft
<br /> 11111 Frame 965 1060 1150 965 1060 1150 965 1060 1150
<br /> Perimeter 1190 1360 1550 1475 1670 1900 1760 1985 2250
<br /> 1111 Marriage 2055 2475 2860 2520 3020 3480 2990 3570 4100
<br /> Frame 1450 1585 1715 1450 1 8'50 1715 1490 1585 1715
<br /> Perimeter 1780 2035 2325 2210 2505 2850 2640 2975 3375
<br /> Marriage 3080 3710 4290 3780 4530 5220 4480 5350 6150
<br /> Frame 192511111
<br /> 2115 2285 1925 2115 2285 1925 2115 2285
<br /> 4500
<br /> Perimeter 2375 2715 3100, 2950 3340 3800 3520 3970
<br /> Marriage• 4110 4950 5720 5040 6040 6960 5975 7135 8200
<br /> Frame 2405 2645 2860 2405 2645 2860 2405 2645 2860
<br /> 10 ft Perimeter
<br /> SEE 8FT ROW
<br /> Marriage SEE 8FT ROW SEE 8FT ROW
<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 /> MaterlaF ..u _
<br /> Appropriate Use ' Specificattors -- - • • 4
<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 /> loads,and site specific soil conditions.
<br /> Pre-cast concrete Minimum 4"thick nominal precast concrete pads meeting or exceeding ASTM C
<br /> All soil.types= 90=02a;Standard Specification for Load Bearing Concrete MasonUnits,without
<br /> Q J reinforcement.with at least a 28-day compressive strength of Z500 psi:
<br /> ~ ABS plastic Use in accordance with the pad manufacturers instructions.Must be certified for I
<br /> d Stable soils use in the soil classification at the site,listed and labeled for the required load ca-
<br /> pacity.
<br /> Proprietary systems Consult system manufac-
<br /> v? turer Consult system manufacturer.
<br /> Z
<br /> y l
<br /> t
<br /> n 4 • •
<br /> .•a .:5. 1.1t. , 1 'T ' �:.r d•ot;j'o—....-� " t"'
<br /> � 2 v,"_,,---4.. -- ,t+ v'...,,-,� .:=„1,..,i,-.,,.. 9 , tie--} y .�' .-.1 ,.1-'.114.
<br /> .y �.` r g
<br /> > ! 7� I rr ,TIrn , 'h..,,3 . r
<br /> Lik....z
<br /> aJ r
<br /> •
<br /> _ Frost protection. When se-
<br /> ..i.:
<br /> ^� letling footing materials
<br /> 3 l E? '5 SIZE OOTI •6 s a
<br /> bear it rand the n,c,d for
<br /> ",lira it load cn tha Froth."1 ori ,r .. il. -
<br /> Ing -. ltf,rll i nr:n c. iI-II.
<br /> 6—//
<br />
|