38
KSP SHAFT PLATFORM
Once it has been verified that the reaction in the bracket is smaller than 25 kN, the
cone DW15/
M24 strength should also be verified.
NOTE: Respecting the minimum shear distances (c
1,min.v
, c
2,min.v
y c
3,min.v
), with h
nom
=185mm and
with a concrete strength of 10Mpa, the anchoring system is able to support the load of 25kN.
5.3.4.
Calculation example
DATA
:
*Formwork self-weight: ORMA: 0.8 kN/m
2
(FSW)
*Formwork height (h): 5 m (h)
*Hollow length: 3.5 m (l)
*Influence width: 1.5 m (a)
*Cone recovery platform: YES
*Platform self-weight: 0.5 kN/m
2
(PSW)
*Live load: 1.5 kN/m
2
(LL)
CALCULATION:
m
kN
l
h
l
FSW
h
a
FSW
a
LL
LL
PSW
PSW
q
CR
M
CR
M
5
.
12
5
.
3
)
5
*
5
.
3
*
8
.
0
5
*
2
*
5
.
1
*
8
.
0
(
5
.
1
*
)
75
.
0
5
.
1
5
.
0
5
.
0
(
)
*
*
*
2
*
*
(
*
)
(
=
+
+
+
+
+
=
+
+
+
+
+
=
Finally, MK -120
or DU
-120 walers should be used for this hollow.
0
10
20
1
2
3
Min Concrete Strength for using the Folding Bracket: 10MPa
12.5kN/m
The Adjustable Bracket must be laterally centred on the Folding Bracket
