Quick Underpinning Calculation
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Transcript of Quick Underpinning Calculation
WALL ONLY? 1
SOIL BUILDING phi = 30 0.523599 W floors 0 plfy = 120 W wall 1680 plf
ka = 0.33333308soil h = 1.5
TIER 1 TIER 2H 4.5 ft H 4.5 ftW 2 ft W 2 ft
Wp 1350 lbs Wp 1350 lbs
A1 60.00 psf P1 270 plf A3 240.00 psfA2 180.00 psf P2 405 plf A4 180.00 psf
CHECK SLIDING CHECK SLIDING
FORCES RESISTING FORCES PUSHING FORCES RESISTING
W = 3030 plf Pa = 675 plf W = 4380 plfu = 0.45 u = 0.45Fs = 1364 plf F.S. = 2.02 OK Fs = 1971 plf
T 0 plf F.S. = 2.02 OK T 256.4983 plf
CHECK OVERBEARING CHECK OVERBEARING
q = 6 tsf q = 6 tsfq = 12000 psf q = 12000 psfW = 3030 plf W = 4380 plf
q allowed = 24000 lbs q allowed = 24000 lbsF.S. = 7.92 OK F.S. = 5.48 OK
CHECK OVERTURNING CHECK OVERTURNING
FORCES ARM MOMENT FORCES ARM W 3030 1 3030 W 4380 1P1 270 2.25 607 P3 1080 2.25P2 405 1.50 607.4995 F.S. = 2.49 OK P4 404.9997 1.5
T 0 6.75 0 F.S. = 2.49 OK T 256.4983 2.25
T -942 2.25 -2119 F.S. = 1.50 OK T -327 2.25
TIER 3H 3.67 ftW 2 ft
Wp 1350 lbs
P3 1079.999 plf A3 240.00 psf P3 1079.999 plfP4 404.9997 plf A4 180.00 psf P4 404.9997 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
Pa = 1485 plf W = 4380 plf Pa = 1485u = 0.45
F.S. = 1.33 NO GOOD Fs = 1971 plf F.S. = 1.33
F.S. = 1.50 OK T 256.4983 plf F.S. = 1.50
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 4380 plf
q allowed = 24000 lbsF.S. = 5.48 OK
CHECK OVERTURNING
MOMENT FORCES ARM MOMENT4380 W 4380 1 43802430 P3 1080 1.84 1982
607.4995 F.S. = 1.44 NO GOOD P4 404.9997 1.223333 495.4496 F.S. = 1.77577.1212 F.S. = 1.63 OK T 256.4983 1.835 470.6744 F.S. = 1.96
-735 F.S. = 1.50 OK T -767 1.84 -1407 F.S. = 1.50
FULLH 9 ftW 2 ft
Wp 2700 plf
A 420.00 psf Pa 2204.998 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
plf W = 4380 plf Pa = 2205 plfu = 0.45
NO GOOD Fs = 1971 plf F.S. = 0.89 NO GOOD
OK T 1336 plf F.S. = 1.50 OK
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 4380 plf
q allowed = 24000 lbsF.S. = 5.48 OK
CHECK OVERTURNING
FORCES ARM MOMENTW 4380 1 4380Pa 2205 3.50 7717
OK F.S. = 0.57 NO GOODOK T 1336.498 6.75 9021.358 F.S. = 1.74 OK
OK T 1066 6.75 7196 F.S. = 1.50 OK
WALL ONLY? 1
SOIL BUILDING phi = 30 0.523599 W floors 0 plfy = 120 W wall 1320 plf
ka = 0.33333308soil h = 1.5
TIER 1 TIER 2H 4.5 ft H 4.5 ftW 2 ft W 2 ft
Wp 1350 lbs Wp 1350 lbs
A1 60.00 psf P1 270 plf A3 240.00 psfA2 180.00 psf P2 405 plf A4 180.00 psf
CHECK SLIDING CHECK SLIDING
FORCES RESISTING FORCES PUSHING FORCES RESISTING
W = 2670 plf Pa = 675 plf W = 4020 plfu = 0.45 u = 0.45Fs = 1202 plf F.S. = 1.78 OK Fs = 1809 plf
T 0 plf F.S. = 1.78 OK T 418.4983 plf
CHECK OVERBEARING CHECK OVERBEARING
q = 6 tsf q = 6 tsfq = 12000 psf q = 12000 psfW = 2670 plf W = 4020 plf
q allowed = 24000 lbs q allowed = 24000 lbsF.S. = 8.99 OK F.S. = 5.97 OK
CHECK OVERTURNING CHECK OVERTURNING
FORCES ARM MOMENT FORCES ARM W 2670 1 2670 W 4020 1P1 270 2.25 607 P3 1080 2.25P2 405 1.50 607.4995 F.S. = 2.20 OK P4 404.9997 1.5
T 0 6.75 0 F.S. = 2.20 OK T 418.4983 2.25
T -782 2.25 -1759 F.S. = 1.50 OK T -167 2.25
TIER 3H 3.67 ftW 2 ft
Wp 1350 lbs
P3 1079.999 plf A3 240.00 psf P3 1079.999 plfP4 404.9997 plf A4 180.00 psf P4 404.9997 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
Pa = 1485 plf W = 4020 plf Pa = 1485u = 0.45
F.S. = 1.22 NO GOOD Fs = 1809 plf F.S. = 1.22
F.S. = 1.50 OK T 418.4983 plf F.S. = 1.50
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 4020 plf
q allowed = 24000 lbsF.S. = 5.97 OK
CHECK OVERTURNING
MOMENT FORCES ARM MOMENT4020 W 4020 1 40202430 P3 1080 1.84 1982
607.4995 F.S. = 1.32 NO GOOD P4 404.9997 1.223333 495.4496 F.S. = 1.62941.6212 F.S. = 1.63 OK T 418.4983 1.835 767.9444 F.S. = 1.93
-375 F.S. = 1.50 OK T -571 1.84 -1047 F.S. = 1.50
FULLH 11 ftW 2 ft
Wp 3300 plf
A 500.00 psf Pa 3124.998 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
plf W = 4620 plf Pa = 3125 plfu = 0.45
NO GOOD Fs = 2079 plf F.S. = 0.67 NO GOOD
OK T 2608 plf F.S. = 1.50 OK
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 4620 plf
q allowed = 24000 lbsF.S. = 5.19 OK
CHECK OVERTURNING
FORCES ARM MOMENTW 4620 1 4620Pa 3125 4.17 13021
OK F.S. = 0.35 NO GOODOK T 2608.496 8.75 22824.34 F.S. = 2.11 OK
OK T 1704 8.75 14911 F.S. = 1.50 OK
INPUT DEPTH OF WALER FROM BOTTOM OF FOOTING
h 3 ft
T 2608 8 20867.97 F.S. = 1.96 OKT 1864 8.00 14911 F.S. = 1.50 OK
WALL ONLY? 1
SOIL BUILDING phi = 30 0.523599 W floors 0 plfy = 120 W wall 1320 plf
ka = 0.33333308soil h = 1.5
TIER 1 TIER 2H 6.5 ft H 4.5 ftW 2 ft W 2 ft
Wp 1950 lbs Wp 1950 lbs
A1 60.00 psf P1 390 plf A3 320.00 psfA2 260.00 psf P2 845 plf A4 180.00 psf
CHECK SLIDING CHECK SLIDING
FORCES RESISTING FORCES PUSHING FORCES RESISTING
W = 3270 plf Pa = 1235 plf W = 5220 plfu = 0.45 u = 0.45Fs = 1472 plf F.S. = 1.19 NO GOOD Fs = 2349 plf
T 381 plf F.S. = 1.50 OK T 418.4979 plf
CHECK OVERBEARING CHECK OVERBEARING
q = 6 tsf q = 6 tsfq = 12000 psf q = 12000 psfW = 3270 plf W = 5220 plf
q allowed = 24000 lbs q allowed = 24000 lbsF.S. = 7.34 OK F.S. = 4.60 OK
CHECK OVERTURNING CHECK OVERTURNING
FORCES ARM MOMENT FORCES ARM W 3270 1 3270 W 5220 1P1 390 3.25 1267 P3 1440 2.25P2 845 2.17 1830.832 F.S. = 1.06 NO GOOD P4 404.9997 1.5
T 380.998602 3.25 1238.245 F.S. = 1.46 NO GOOD T 418.4979 2.25
T 53 3.25 -1369 F.S. = 1.50 OK T -160 2.25
INPUT DEPTH OF WALER FROM BOTTOM OF FOOTING
h 4 ft
T 381 2.5 952.4965 F.S. = 3.33 OKT -548 2.50 -1369 F.S. = 1.50 OK
TIER 3H 3.67 ftW 2 ft
Wp 1950 lbs
P3 1439.999 plf A3 320.00 psf P3 1439.999 plfP4 404.9997 plf A4 180.00 psf P4 404.9997 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
Pa = 1845 plf W = 5220 plf Pa = 1845u = 0.45
F.S. = 1.27 NO GOOD Fs = 2349 plf F.S. = 1.27
F.S. = 1.50 OK T 418.4979 plf F.S. = 1.50
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 5220 plf
q allowed = 24000 lbsF.S. = 4.60 OK
CHECK OVERTURNING
MOMENT FORCES ARM MOMENT5220 W 5220 1 52203240 P3 1440 1.84 2642
607.4995 F.S. = 1.36 NO GOOD P4 404.9997 1.223333 495.4496 F.S. = 1.66941.6203 F.S. = 1.60 OK T 418.4979 1.835 767.9437 F.S. = 1.91
-360 F.S. = 1.50 OK T -685 1.84 -1256 F.S. = 1.50
FULLH 13 ftW 2 ft
Wp 3900 plf
A 580.00 psf Pa 4204.997 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
plf W = 5220 plf Pa = 4205 plfu = 0.45
NO GOOD Fs = 2349 plf F.S. = 0.56 NO GOOD
OK T 3958 plf F.S. = 1.50 OK
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 5220 plf
q allowed = 24000 lbsF.S. = 4.60 OK
CHECK OVERTURNING
FORCES ARM MOMENTW 5220 1 5220Pa 4205 4.83 20324
OK F.S. = 0.26 NO GOODOK T 3958.495 10.75 42553.82 F.S. = 2.35 OK
OK T 2350 10.75 25266 F.S. = 1.50 OK
INPUT DEPTH OF WALER FROM BOTTOM OF FOOTING
h 4 ft
T 3958 9 35626.46 F.S. = 2.01 OKT 2807 9.00 25266 F.S. = 1.50 OK
WALL ONLY? 1
SOIL BUILDING phi = 30 0.523599 W floors 1600 plfy = 120 W wall 4905 plf
ka = 0.33333308soil h = 1.5
TIER 1 TIER 2H 4.5 ft H 4.5 ftW 2 ft W 2 ft
Wp 1350 lbs Wp 1350 lbs
A1 60.00 psf P1 270 plf A3 240.00 psfA2 180.00 psf P2 405 plf A4 180.00 psf
CHECK SLIDING CHECK SLIDING
FORCES RESISTING FORCES PUSHING FORCES RESISTING
W = 6255 plf Pa = 675 plf W = 7605 plfu = 0.45 u = 0.45Fs = 2815 plf F.S. = 4.17 OK Fs = 3422 plf
T 0 plf F.S. = 4.17 OK T 0 plf
CHECK OVERBEARING CHECK OVERBEARING
q = 6 tsf q = 6 tsfq = 12000 psf q = 12000 psfW = 6255 plf W = 7605 plf
q allowed = 24000 lbs q allowed = 24000 lbsF.S. = 3.84 OK F.S. = 3.16 OK
CHECK OVERTURNING CHECK OVERTURNING
FORCES ARM MOMENT FORCES ARM W 6255 1 6255 W 7605 1P1 270 2.25 607 P3 1080 2.25P2 405 1.50 607.4995 F.S. = 5.15 OK P4 404.9997 1.5
T 0 6.75 0 F.S. = 5.15 OK T 0 2.25
T -2375 2.25 -5344 F.S. = 1.50 OK T -1760 2.25
TIER 3H 3.67 ftW 2 ft
Wp 1350 lbs
P3 1079.999 plf A3 240.00 psf P3 1079.999 plfP4 404.9997 plf A4 180.00 psf P4 404.9997 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
Pa = 1485 plf W = 7605 plf Pa = 1485u = 0.45
F.S. = 2.30 OK Fs = 3422 plf F.S. = 2.30
F.S. = 2.30 OK T 0 plf F.S. = 2.30
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 7605 plf
q allowed = 24000 lbsF.S. = 3.16 OK
CHECK OVERTURNING
MOMENT FORCES ARM MOMENT7605 W 7605 1 76052430 P3 1080 1.84 1982
607.4995 F.S. = 2.50 OK P4 404.9997 1.223333 495.4496 F.S. = 3.070 F.S. = 2.50 OK T 0 1.835 0 F.S. = 3.07
-3960 F.S. = 1.50 OK T -2524 1.84 -4632 F.S. = 1.50
FULLH 7.67 ftW 2 ft
Wp 2301 plf
A 366.80 psf Pa 1681.777 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
plf W = 7206 plf Pa = 1682 plfu = 0.45
OK Fs = 3243 plf F.S. = 1.93 OK
OK T 0 plf F.S. = 1.93 OK
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 7206 plf
q allowed = 24000 lbsF.S. = 3.33 OK
CHECK OVERTURNING
FORCES ARM MOMENTW 7206 1 7206Pa 1682 3.06 5141
OK F.S. = 1.40 NO GOODOK T 0 5.42 0 F.S. = 1.40 NO GOOD
OK T 93 5.42 505 F.S. = 1.50 OK
WALL ONLY? 1
SOIL BUILDING phi = 30 0.523599 W floors 1600 plfy = 120 W wall 4905 plf
ka = 0.33333308soil h = 1.5
TIER 1 TIER 2H 4.5 ft H 4.5 ftW 2 ft W 2 ft
Wp 1350 lbs Wp 1350 lbs
A1 60.00 psf P1 270 plf A3 240.00 psfA2 180.00 psf P2 405 plf A4 180.00 psf
CHECK SLIDING CHECK SLIDING
FORCES RESISTING FORCES PUSHING FORCES RESISTING
W = 6255 plf Pa = 675 plf W = 7605 plfu = 0.45 u = 0.45Fs = 2815 plf F.S. = 4.17 OK Fs = 3422 plf
T 0 plf F.S. = 4.17 OK T 0 plf
CHECK OVERBEARING CHECK OVERBEARING
q = 6 tsf q = 6 tsfq = 12000 psf q = 12000 psfW = 6255 plf W = 7605 plf
q allowed = 24000 lbs q allowed = 24000 lbsF.S. = 3.84 OK F.S. = 3.16 OK
CHECK OVERTURNING CHECK OVERTURNING
FORCES ARM MOMENT FORCES ARM W 6255 1 6255 W 7605 1P1 270 2.25 607 P3 1080 2.25P2 405 1.50 607.4995 F.S. = 5.15 OK P4 404.9997 1.5
T 0 6.75 0 F.S. = 5.15 OK T 0 2.25
T -2375 2.25 -5344 F.S. = 1.50 OK T -1760 2.25
TIER 3H 3.67 ftW 2 ft
Wp 1350 lbs
P3 1079.999 plf A3 240.00 psf P3 1079.999 plfP4 404.9997 plf A4 180.00 psf P4 404.9997 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
Pa = 1485 plf W = 7605 plf Pa = 1485u = 0.45
F.S. = 2.30 OK Fs = 3422 plf F.S. = 2.30
F.S. = 2.30 OK T 0 plf F.S. = 2.30
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 7605 plf
q allowed = 24000 lbsF.S. = 3.16 OK
CHECK OVERTURNING
MOMENT FORCES ARM MOMENT7605 W 7605 1 76052430 P3 1080 1.84 1982
607.4995 F.S. = 2.50 OK P4 404.9997 1.223333 495.4496 F.S. = 3.070 F.S. = 2.50 OK T 0 1.835 0 F.S. = 3.07
-3960 F.S. = 1.50 OK T -2524 1.84 -4632 F.S. = 1.50
FULLH 10 ftW 2 ft
Wp 3000 plf
A 460.00 psf Pa 2644.998 plf
CHECK SLIDING
FORCES PUSHING FORCES RESISTING FORCES PUSHING
plf W = 7905 plf Pa = 2645 plfu = 0.45
OK Fs = 3557 plf F.S. = 1.34 NO GOOD
OK T 410 plf F.S. = 1.50 OK
CHECK OVERBEARING
q = 6 tsfq = 12000 psfW = 7905 plf
q allowed = 24000 lbsF.S. = 3.04 OK
CHECK OVERTURNING
FORCES ARM MOMENTW 7905 1 7905Pa 2645 3.83 10139
OK F.S. = 0.78 NO GOODOK T 410.247 7.75 3179.414 F.S. = 1.09 NO GOOD
OK T 942 7.75 7304 F.S. = 1.50 OK
INPUT DEPTH OF WALER FROM BOTTOM OF FOOTING
h 3 ft
T 410 7 2871.729 F.S. = 1.06 NO GOODT 1043 7.00 7304 F.S. = 1.50 OK
WH 9 FTT 2.25 FT
s 0 KSFphi 30 0.524y 0.125 KCF
ka 0.333kp 3.000
A1 0.375 KSFA2 0.000 KSF
FORCESP1 1.69 KLFP2 0.00 KLFT 2.53 KLF GOOD
MOMENT ABOUT BASEFORCES ARM MOMENT
P1 1.69 3.00 5.062496P2 0.00 4.50 0
5.062496T 0.75 NOT GOOD