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DEAD LOAD CALCULATION FOR RCC T-GIRDER DECK :
Note : Al l f igures in red coloured font are to be treated as
input data. Al l dimensions are in m etres.
Load from Superstructure : Depth of Super Structure = 2.7
No. of longitudinal girders = 4
2.65 2.65 2.65
0.200
150 2.075
300
0.325
150 150
TYPICAL CROSS SECTION OF T-BEAM DECK 0.625
Cross Sectional Area :-(Intermediate Section )
i) Intermediate Slab (2.65-0.325)*3*0.25 1.744 m2
ii) Cantilever Slab 0.5*(0.2+0.33)*(2.075-0.325/2)*2 1.014
m2
iii) 300 X 150 haunch (0.5*0.3*0.15)*6 0.135 m2
iv) Web (2.7-0.4)*0.325*4 2.990 m2
v) Bottom Bulb (0.625*0.25+0.5*(0.325+0.625)*0.15)*4 0.910
m2
Total SUM(1.74375:0.91) 6.792 m2
EFFCT OF END THICKENING OF GIRDER
0.90 0.90
280 300
3.24t/m
Load intensity at B in addition to 325th
(0.625-0.325)*2.125*2.4*4 6.12 t/m
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250
150
300
2.
125
1900
150
250
DEAD LOAD INTERMEDIATE DIAPHRAGM Thickness of Diaphragm = 0.325
m
Thickness of diaphragm 0.325m
Cross Sectional area in elevation
(2.65-0.325)*(2.7-250*0.001-250*0.001)-0.15*0.3-0.15*0.15 5.048
m2
Total Load of each diaphragm 5.0475*0.325*2.4*3 11.81 T
(Intermediate)
DEAD LOAD OF END DIAPHRAGM
Cross sectional area in elevation
(2.65-0.625)*(2.7-250*0.001-250*0.001)-0.15*0.075 4.444 m2
Total load of end diaphragm(2 nos thus) (4.44375*0.325*2.4*3*)2
20.797 T
D.L. Running meter 6.79*2.4 16.30 t/m
(Ref P-6)
S.I.D.L.
I)Wearing coat =0.2t/m2 =0.2x11.1 2.22
ii)Crash barrier =1.0x2 2.00
Total 4.22
S.I.D.L reaction 4.22*(26.71-2*0.02)*0.5 56.3 T
10.4 T 11.81 T 10.4 T
6.12 t/m
16.30 t/m
0.02 0.28 26.15
26.71
A
RA =
16.3*(26.71-0.02*2)*0.5+6.12*0.9+0.5*6.12*0.9+10.4+11.81*0.5 241.9
T
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Total dead load reaction 241.93+56.27 298.20 T
For design of substructure increasing by 5% 1.05*298.2 313.11
T
Say= 314 T
Total Dead Load on Pier due to Super structure 628 T
