Grain Systems Tanks PNEG-603 - Manual (Page 19)

4. FCHT Base Plate Layouts
PNEG-603 4" Commercial Hopper Tank 19
21' Diameter FCHT Foundation
Figure 4D
NOTES: 1.
The
fou
ndatio
n
desig
n
is b
a
sed
on
a
mini
mum a
llowa
ble
soi
l
beari
ng
cap
a
ci
ty o
f
3000
PSF
. Bearin
g cap
a
city of the so
ils sho
u
ld
be
determine
d
by
geotech
n
ical
in
vestigatio
n a
nd be
of uni
form bea
ring cap
a
city
.
2. The
fou
ndatio
n si
te
must be fre
e
of veg
e
ta
ti
on and
d
ebris and
wel
l d
raine
d.
3. The
fou
ndatio
n mu
st be foun
ded be
lo
w the fro
s
t lin
e or
co
nstru
c
ted
o
n
non
-exp
ansi
v
e frost free
fill
.
4. All ma
te
rial use
d
for backfill
i
n
side
the rin
g
w
a
ll sho
u
ld be
cle
an,
w
e
ll
grad
ed, crush
ed
rock o
r a
san
d
-grave
l mixture.
Backfi
ll
shou
ld
be
pla
c
ed
in 6" lif
ts
, 95% comp
ac
tion.
5. All reinforcement must
meet t
he requ
irement
s
o
f ASTM A615
gra
de 60
deformed
ba
rs.
6. Lap
al
l ci
rcumfe
re
ntial ba
rs 35
b
a
r
d
iameters and st
agge
r
a
ll lap
s
in
pla
n
s
3
'-0
". Esti
ma
te
s
for ma
te
rial do
n
o
t in
clude
e
nd lap
s
.
7. Concrete must
h
a
ve a mi
nimum co
mpressive
stre
ngth
of 3
000
PSI a
t
28 da
ys, 6%-8% ai
r
en
tra
inment,
4
" sl
ump.
8. Code
s: UBC 97, AC
I 318
-95.
9. In
te
ri
or
top
sla
b
ma
y
b
e
cro
w
ned
2
"
to provi
de water drain
age aw
ay
fro
m
foun
dation
. Crown
ing the slab
wi
ll redu
ce
the
cle
a
ran
c
e
u
nder
th
e discha
rg
e
.