4 - Pole
4 - Pole
C3 C4
Z
2446 MM
3090 MM
644 MM
C1 C2
955 MM
1.81 T/Sqm 1.95 T/Sqm
1500 MM
COLUMN MKD ( C1 ) :
VERTICAL LOAD (ADDING 5% FOR WEIGHT OF 129.26 X 1.05
FOUNDATION) = = 9.05 T
10 X 1.50
MOMENT (Mx) = 0.79 T-M
MOMENT (Mz) = 0.86 T-M
COLUMN MKD ( C2 ) :
VERTICAL LOAD (ADDING 5% FOR WEIGHT OF 79.82 X 1.05
FOUNDATION) = = 5.59 T
10 X 1.50
MOMENT (Mx) = 0.71 T-M
MOMENT (Mz) = -0.62 T-M
COLUMN MKD ( C3 ) :
VERTICAL LOAD (ADDING 5% FOR WEIGHT OF 24.34 X 1.05
FOUNDATION) = = 1.70 T
10 X 1.50
MOMENT (Mx) = 0.11 T-M
MOMENT (Mz) = 0.95 T-M
COLUMN MKD ( C4 ) :
VERTICAL LOAD (ADDING 5% FOR WEIGHT OF 30.70 X 1.05
FOUNDATION) = = 2.15 T
10 X 1.50
MOMENT (Mx) = -0.02 T-M
MOMENT (Mz) = -0.69 T-M
TOTAL AXIAL LOAD : 21.49 T TOTAL Mx : 5.59 T-M TOTAL Mz : 0.50 T-M
UPWARD PRESSURE INTENSITY =
21.49 + 5.59 X 6 + 0.50 X
5.00 X 3.00 - 3.00 X 5.00 2 - 5.00 X
= 1.43 + 0.45 + 0.07
- -
C3 3090 MM
C1
& &
C4 C2
C.G. OF FOOTING
61 MM
500 MM
1849MM
5000 MM
F2 F1
0.99 T/M 1.16 T/M 1.43 T/M 1.71 T/M 1.79 T/M 1.88 T/M
1.55 T/M
2
B.M.(MAX) AT CANTILEVER FACE = 1.79 X 0.505 ( 1.88 - 1.79 ) X
+
2 3
= 0.24 T-M
2
B.M.(MAX) AT CENTRE = ( 1.16 + 1.71 ) X ( 3.090 - 0.90 )
2 X 8
= 0.86 T-M
To calculate the Bending Moment in the slab consider maximum pressure as U.D.L. and this will give the slightly
conservative value of maximum moment for slab.
12
EFFECTIVE DEPTH OF SLAB = 500 - 50 + = 444 MM
2
REINFORCEMENT AT SUPPORT :
DIST BETWEEN BEAM FACE & TOE OF FOOTING = ( 955 - 900 /2 ) = 505 MM
0.80 X 25
BETA = = 22.791
6.89 X 0.127
HENCE O.K.
900
SHEAR AT "d" FROM FACE OF FOOTING = 955 + + 444 =
2
1.879 + 1.549
SO SHEAR FORCE AT "d" SECTION (PER METER WIDTH) = X
2
= 3.17 T
Vu = 3.17 X 1.50 X 10 = 47.54 KN
0.80 X 25
BETA = = 22.791
6.89 X 0.127
HENCE O.K.
1500 MM
C2 C1
C.G. OF FOOTING
900 MM
750 MM 872 MM 628 MM 750 MM
3000 MM
F2 F1
0.750
Pressure at F2 = 3.41 + 3.75 - 3.41 = 3.50 T/Sqm
3.000
( 0.750 + 1.500 )
Pressure at F1 = 3.41 + 3.75 - 3.41 =
3.000
X = 1.523 M
1523
773
10.74 X 0.77
R1 = = 5.54 T
1.5
R2 = 10.74 - 5.54 = 5.21 T
2.759 T
2.592 T
2.780 T
2.613 T
1488 MM
3.748 - 3.415
PRESSURE AT A DISTANCE "D" = 3.415 + D
PRESSURE AT A DISTANCE "D" = 3.415 + D
3.000
= 3.415 + 0.111D
2
- 3.415 + 3.415 + 4 X 0.056 X 5.205
SO D = = 1.488 M
2 X 0.056
M22 M11
MX
20
EFFECTIVE DEPTH OF SLAB = 900 - 50 + = 840 MM
2
41.70 X 1000
Tv = = 0.046 MPa
900 X 840
0.80 X 25
BETA = = 11.642
6.89 X 0.249
Tc, max = 3.100 MPa Tc,max =3.1 Mpa, So, Section is adequate
8.00 T/Sqm
54 COMB - 1 DEAD + 0.8 SEISMIC-H (4)
129.26 KN
11.84 KN-M
12.91 KN-M
800 MM
650 MM
7 NOS
+ 30.70 )
+ 30.70 )
6
3.00 22
2
0.505
this will give the slightly
X 1000 X 444
X 1000 X 444
0.11 T
1849.00MM
1.849
3.66 T/Sqm
10.744 T
2.592 T
2.780 T
.58 T/Sqm
0.96820567708
1.046 T-M
X 840
6 NOS
X 840
1
Joint No Load Case FX FY FZ MX MY MZ
Horizontal Moment
Fz kN Mx kN-m My kN-m Mz kN-m
-1.168 -1.22 0.114 10.152
-6.039 -12.357 0.052 1.964
1.927 8.631 0.059 1.925
-5.089 -10.202 0.1 8.521
1.283 6.588 0.106 8.491
-1.155 -1.155 0.165 10.712
-1.1 -1.044 -0.057 -6.809
-1.561 -2.053 -2.194 17.316
-0.694 -0.146 2.302 -13.413
-1.182 -1.241 0.191 15.52
-1.138 -1.151 0.013 1.503
-1.507 -1.959 -1.697 20.803
-0.813 -0.433 1.9 -3.78
-1.149 -1.144 0.143 8.96
-1.106 -1.055 -0.035 -5.057
-1.474 -1.862 -1.745 14.243
-0.781 -0.337 1.853 -10.34