DEAD LOAD CALCULATION FOR RCC T-GIRDER DECK :

Note : All figures in red coloured font are to be treated as input data. All dimensions are in metres.

Load from Superstructure : Depth of Super Structure = 2.7No. of longitudinal girders = 4

2.65 2.65 2.65

0.200150 2.075

3000.325

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 3003.24t/m

Load intensity at B in addition to 325th(0.625-0.325)*2.125*2.4*4 6.12 t/m

250150

300

2.12

5

1900

150250

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 2.00Total 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/m16.30 t/m

0.02 0.28 26.1526.71

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

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