Ring Wall Tank Foundation DESIGN

ELEVATIONS

Bearing Capacity

STABILITY

Finish Grade  ELEV

3.000

FOSs

TOC ELEV

4.300

FOSo

0.00 > 1.5 0.000 < 0.67

180.00

kPa qa qT (Tank) qF (Footing)

0.00 0.00

Wind Speed V

Reinforcement

93

mph

db  (Footing-Horiz)

db  (Footing-Vert'l)

20

16

Tank Dimensions DT

mm

21,946

tw

mm

25.00

hT

14,630

mm

hL

mm

14,326

tp

mm

9.53

hR

mm

0

tR

mm

9.53

Horizontal Direction min act prvd

(Horizontal) (Horizontal) (Horizontal)

0.0025 #DIV/0!

=

#DIV/0!

mm

0.0025

 As2

=

0

mm

 As

=

#DIV/0!

mm

nb = 2 x  As =

mm

1800

min

(Vertical)

0.0015

nb = 2 x

TF

mm

500

act

(Vertical)

0.0015

 As =

mm

 Cc

mm

1300 25

(Cover)

8

2

@ 236 mm 2

5027

hF

Tg

2

mm

> #DIV/0!

Vertical Direction

Ringwall Dimensions

h1 (above Grade) mm

2

Provide The Foll owing Rebars:  Rebars: 

1.000

Specific wt

nb = 2 x #### @ #DIV/0! mm  As1

75

0

@ #### mm 2

0

mm

Provide The Foll owing Rebars:  Rebars: 

h2 (under Grade)

mm

500

nb = 2 x  As =

2011

5

@ 200 mm 2

mm

>

0

 < 450 mm 450 mm

1. Design Objective To design Ringwall Foundation for Storage Tank, D

T

=

21,946

mm

and hT =

14,630

mm

 Y

X

Tank

Tank Wall & Ringwall Fdn.

Z

DT ( Tank Outside Diameter )

Tank Floating Roof

tw    T

   h

   L

   h

Dbc (Bolt Circle Diameter)

  p

   t

   1

   h    F

   h

   2

   h

TF

Storage Tank Ringwall Foundation

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Ww + WR

gp hL + gst tb

   1

   h

F = FP + FS FP

   F

   h

FS    2

   h

TF

Ka gp hL

Ka gs hF

Forces acting on Ringwall

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Ringwall Foundation for Storage Tank With Diameter,

DT =

0

mm

and Height, hT =

0

mm

8. Ringwall Foundation Detailed Sketch

Tank Wall & Ringwall FDN

    l     l    a     W    e    f     h     t   m     f    o   m    s    e    0    c    a    2     F   -     t     h    o    8     B    r    o     f     l    a    c     i    p    y     T

   0    0    1    3    1    h    0    F    0    h    8    1

   0    2    0    5    h

0 f  @ 200 mm

500

TF

Ringwall Details Storage Tank Foundation

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