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POINT LOAD ON SQUARE PAD FOOTING
<br />Footing Depth (FD) =
<br />Soil Bearing (SB) =
<br />rv1ax. Soil Bearing =
<br />12 in
<br />1500 psf
<br />1500 psf
<br />Plain Concrete Design:
<br />F'c =
<br />Tension Fb =
<br />Procedures:
<br />2,500 psi
<br />80 psi
<br />Soil Density =
<br />Concrete Density =
<br />Inc. Width (IW) =
<br />Inc. Depth (ID) =
<br />Fsoil = ((D-FD)/12*1D)+SB
<br />F'soil = Fsoii-(D/12*(150-110))
<br />A= W*L
<br />Pmax = F'soii*A
<br />110 pcf
<br />150 pcf
<br />200 psf
<br />200 psf
<br />r--\Flf) L (") D (") Fsoil (psf) F'soil (psf) ~ Pmax (#) Reinforce F-·--·--·-+--~~~-=~-4~~~~~~~~--~~~~~~~~~~ 12 12 5 1,383 1,367 1.00 1,367 2-#4 e.w. F--··-=~-~--~--~--~-+----~~----~~------~--~-r~~--~
<br />'12 12 12 1,500 1,460 1.00 1,460 2-#4 e.w.
<br />'15 15 12 1,500 1,460 1.56 2,281 3-#4e.w.
<br />~ 21 21 15 1,550 1,500 3.06 4,594 3-#4 e.w.
<br />~__23 ... ~-04 1 24 15 1,550 1,500 4.00 6,000 3-#4 e.w.
<br />1 30 15 1,550 1,500 6.25 9,375 4-#4 e.w.
<br />r"'···-w-·--+--18 _ _,_ __ 18 _ _,_ __ 1.;...,6_0_01----1.:...,5_0_0 1---2-.2-5..,_._3...;,-37_5..,_._3--#4-e-.w...,.
<br />··----·----1,___ __ --t------t-------"---+-----'----~-----i---~~--------..;..;..;...:.;
<br />1--~1-·--t---2_1 --;-----1..;:_8_+----1~, 6.:....:0:_:.0.;-__ 1;..!..., 5=-=0:_:.0.;-__ ..:...:3 ·..;:_0~61-----4.!..:., 5-=-9-=-41--..;..3...:.:-#_..:4_..:e:..:... w~.
<br />1 24 24 18 1,600 1,500 4.00 6,000 3-#4 e.w.
<br />E-~o----~---3-0---+--..;:_18~-+------1~,6..;:_o~o~----=-1~,5..;:_o~o~----6-=-.2=-=5+---9~,~37=-=5+--4~--=-#4~e-=-.w~.
<br />33 33 18 1,600 1,500 7.56 11,344 4-#4 e.w.
<br />18 __ ~ __ ..:..18~-4---=-12~~-----1~,5:_:.0..;:_0~ __ __;1~,4:_:.6..;:_0t-----2=·=25-+-_..:...;3,=2..;:_85-+-___ 3-_#_4:_:.e_.w~.
<br />I 21 21 12 1,500 1,460 3.06 4,471 3-#4 e.w.
<br />·-~~·~· ___ 2_4~-+---12~_,_--~1~,5~0~01----~1~,4~6~01--~4~.0~0~--5~,~84~0~~3-~#~4-e_.w~.
<br />'18 18 15 1,550 1,500 2.25 3,375 3-#4 e.w.
<br />~·_2~6--t--~36~--+-~1_8 -t---~1~,6~o--o+-__ 1 ..... ,5 __ o~o+-_9..., ..... oo~_1_3,:...5_oo_,__4-_#~4-e_.w-1.
<br />~ 30 30 21 1,650 1,500 6.25 9,375 4-#5 e.w.
<br />l--1~6 ___ ~ __ ..:..36 ___ -4--=2-=-1--t-----=-1~,6.:....:5..:..0+--__ ;_:.1~,5=-=o-=-o+--__ 9=-=·..;:_oo~---1..;:_3,=5..;:_oo~--=-4-~#-=-5~e~.w~.
<br />L~~2 42 21 1,650 1,500 12.25 18,375 5-#5 e.w.
<br />36 36 24 1, 700 1,500 9.00 13,500 4-#5 e.w. --------~------,_-..:..-=--~---~~-----~~--~~--~~~--=-~~~
<br />42 42 24 1, 700 1 ,500 12.25 18,375 5-#5 e.w.
<br />~---4~8~-+--~4~8--~___;2~4~~--~1,~7~00~--~1,~50~0~~1~6~.0~0+-:_:.2~4~,0=-=0~0+-:_:.5~-#~5~e=.~w.
<br />54 54 24 1,700 1,500 20.25 30,375 5-#5 e.w. ·------1-----i-----~----<---+-----'---t--------if----=-~...:...r---------l
<br />60 60 24 1,700 1,500 25.00 37,500 6-#5 e.w.
<br />~~-~--~-~~--~~--+---~~~--~~+-~~~--~~~~~~ • 66 66 24 1,700 1,500 30.25 45,375 6-#5 e.w. t==]·~2---~--..:..7..:...;2_4-~2~-=-4-t----1~,7-0-0+----1~,5~0..:..0+--..........:...36..;:_.=oo~_:_:.5=4~,o..;:_oo~--=-7=-#..:..5=e=.w~.
<br />R-7.=8--~--=7..;:_8 __ 4--=2-=-4--t----1~,7=0..:..0+-__ :_:.1~,5.:....:0..:..0+---=-42=.=25~~6..;:_3~,3..;:_75~--=-7~-#..:..5=e=.w~.
<br />84 84 24 1,700 1,500 49.00 73,500 8-#5 e.w. '==~·,.~•~==•rn=J.-.....--~-.J.---J.-...--.......;..-J......_.......;..;...;......L.-_.;....;...;..&__..;;.:..;...;;...;...JI.-,.--....._.1
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