One way slab load calculation

Load Distribution …
Slab to Beam to Column to Footing

1. LOAD DISTRIBUTION CALCULATION BY ONE WAY
SLAB
PREPARED BY
R. Udhayasankar ME
Assistant Professor
Department of Civil Engineering
YouTube channel link : https://www.youtube.com/channel/UC8RHrVHopF-W8Og5Pt9h-0Q

2. •GIVEN DATA
•Lx = 3 m
•Ly = 7 m
•Slab thickness = 120 mm
•Column C1 = 230 x 400 mm
•Beam B1 = 230 x 380 mm
•Beam B2 = 230 x230 mm
•Live load = 2 kN/m
2
•M20 Fe 415

3. •LOADDISTRIBUTION
SLAB
BEAM
COLUMN
FOOTING

4. 7 m
3 m
1.5 m
1.5 m
Yield line pattern for one way slab
S1
C1
C1 C1
C1
SB1
SB1
B1
B1
7 m
3m
One way slab

5. •SLAB LOAD CALCULATION
•Self weight of slab
= 7 x 1.5 x.12 (Depth of slab = .12)
= 1.26 x25 ( unit weight of concrete = 25)
= 31.5
= 31.5/7 = 4.5 kN/m
DEAD LOAD = 4.5 kN/m
•LIVE LOAD CALCULATION
= 7 X 1.5 = 10.5
= 10.5 X 2 = 21 kN/m
2
( live load = 2)
= 21/7 = 3 kN/m
LIVE LOAD = 3 kN/m
7 m
1.5 m
7 m
3kN/m4.5 kN/m

6. •BEAM LOAD CALCULATION
Total load on slab to beam
D.L + L.L
= 31.5 + 21
= 52.5 kN/m
Self load on beam
Clear span = 6.6 m ( 7-.4) = 6.6 m (.4 Column size)
•Self wtof beam
= .23 x .38 x 6.6
= .577 x 25
= 14.425 kN/m
= 14.425 / 6.6 = 2.186 kN/m
•LOAD TRANSFER FROM BEAM TO COLUMN
slab load + beam self weight / 2
= 52.5 +14.425 /2
= 33.465 kN
6.6 m
7 m
.4 m .4 m

7. •Self wtof beam
= .23 x .38 x 6.6
= .577 x 25
= 14.425 kN/m
= 14.425 / 6.6 = 2.186 kN/m
•LOAD TRANSFER FROM BEAM TO COLUMN
slab load + beam self weight / 2
= 52.5 +14.425 /2
= 33.465 kN
•Second beam load calculation
Self weight of beam
= .23 x .23 x 2.77 = ( 3-.23 =2.77)
= .147 x 25
= 3.675
= 3.675/2.77 = 1.327 kN/m
•Column load calculation
Self weight of column
= .23 x .4 x 3
= .276 x 25
= 6.9 kN
2.77m
3 m
.23 m .23 m

8. •FOOTING LOAD CALCULATION
DEAD LOAD
= 31.5 (SL)(DL) + 14.425 (BL)(DL) +3.675(SBL)(DL) /2
= 49.6 /2
= 24.8 + 6.9 (CSW)
= 31.7kN
LIVE LOAD
21 /2
= 10.5 kN
•Total load on footing = dead load + live load
= 31.7 + 10.5
= 42.2 kN
TOTAL LOAD = 42.2 kN

9. THANK YOU
YouTube link :https://www.youtube.com/channel/UC8RHrVHopF-
W8Og5Pt9h-0Q
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