Pump Foundation Design.pdf

DESIGN OF P!P FONDATION '(eference: 4o&ndation nal6sis and Design> 5th dition %6 ?oseph . @owles> @ N !!2AA:2##B A Design of Concrete tr&ct&res  (einforced Concrete A nal6sis and Design %6 .. (a6* Description: ACF FEED Pumps Tag No.: WT3-P-74001A/B A. Input Data γconc = 25

kN/m

3

Unit weight of reinforced concrete

3

Unit weight of soil

γsoil =

!

kN/m

"all =

5#

k $a

2.,#

kN

Net allowa%le %earing press&re '(eference: )))) ))))** mpt6 weight of p&mp with #7 additional to acco&nt for the weight of the

+p e =

connected pipes '+p e = .#825#8!.9/###*

B X

Fy Fx

My

"pe

Mx Y

Y

Z

A ep

Fy

hp

Fy

ax

Fz

hf 

Fx

My

Mx

Mx

xA

X

NOZZLE CENTERLINE LEVEL (SUCTION & DISCARGE! GRADE GRADE LEVEL LEVEL

#OINT A

B

ay

SECTION 'T(N;(*

PLAN

"pe

"pe

Fx Fz

Z

Fx

My

Fz

My

NOZZLE CENTERLINE LEVEL (SUCTION & DISCARGE! ep hp hf 

xB A

SECTION '
-aim&m ndi0id&al No11le oading &ction 4orces and -oments:

#OINT B

GRADE GRADE LEVEL LEVEL

4s =

#.B#9

kN

$&mp load along hori1ontal Adirection

46s =

B.2,#

kN

$&mp load along hori1ontal 6Adirection

41s =

B.2,#

kN

$&mp load along 0ertical 1Adirection

-s =

.,22

kNm

-oment along hori1ontal Adirection

-6s =

#.2!9

kNm

-oment along hori1ontal 6Adirection

-1s =

#.2!9

kNm

-oment along 0ertical 1Adirection

Discharge 4orces and -oments: 4d = E.22, kN $&mp load along hori1ontal Adirection 46d =

E.##5

kN

$&mp load along hori1ontal 6Adirection

41d =

B.B5E

kN

$&mp load along 0ertical 1Adirection

-d =

#.9!5

kNm

-oment along hori1ontal Adirection

-6d =

#.9!5

kNm

-oment along hori1ontal 6Adirection

-1d =

#.9!5

kNm

-oment along 0ertical 1Adirection

eps =

#.9B

m

&ction p&mp loads eccentricit6

epd =

#.9B

m

Discharge p&mp loads eccentricit6

hp =

#.2#

m

Thickness of plinth 'incl&ding gro&t thickness*

hf  =

#.B#

m

Thickness of fo&ndation pad

  = @= a =

B.## 2.## #.,5

m m m

ength of pad along Adirection +idth of pad along 6Adirection ength of plinth along Adirection

a6 =

#.,5

m

ength of plinth along 6Adirection

 p =

#.5E

m

2

 rea of plinth 'p = a 8 a6*

m

2

 rea of fo&ndation pad ' f  =  8 @*

 f  =

9.##

B. B"a#$n% P#"ssu#" C&"'( -add = E. kNm

 dditional moment a%o&t A '-add = 2846s8'epsFhpFhf * F 2846d8'epdFhpFhf **

-6add =

2E.#9

kNm

 dditional moment a%o&t 6A6 '-6add = 284s8'epsFhpFhf * F 284d8'epdFhpFhf **

+ p =

5.E3

kN

+eight of each plinth '+ p = $%&'% ( Ap ( hp!

+ f  =

9#.##

kN

+eight of fo&ndation '+ f  = $%&'% ( Af  ( hf !

$=

3B.#

kN

Total 0ertical load G$ = 28'+p eF+ pF41sF41d* F + f H

- =

2.35

kNm

Total moment a%o&t A G- = 28'- s F -d* F -addH

-66 =

29.B,

kNm

Total moment a%o&t 6A6 G-66 = 28'-6 sF-6d* F -6addH