Project identification

Appears on every drawing and report sheet

ProjectStructureLocation / chainageClientPrepared byChecked byRevisionDate

Deck geometry

IRC:6 Cl. 104 · carriageway widths per Cl. 104.3

Number of spansEffective span LmOverhang beyond bearingmOverall deck widthmClear carriagewaymIRC:6 Cl. 104.3Crash barrier widthmBarrier loadkN/mBarrier heightmFootpath widthmWearing coatmWearing coat densitykN/m³Number of girdersGirder spacing SmCross girders (incl. ends)Cross-girder widthmCross-girder depthmDeck slab thicknessm

Girder section

T or T with bottom bulb

RCC (reinforced)PSC (post-tensioned)TT-bulb

Overall depth D (incl. slab)mWeb width b_wmBulb width b_bmBulb depth h_bmBulb taper h_tm

Materials

IRC:112 Table 6.5 / 18.1

Concrete f_ckMPaf_ck at transferMPaSteel f_yMPaConcrete unit weightkN/m³Clear covermmCl. 14.3.2

Girder reinforcement

Bars per layer, counted from the soffit up

Main bar ømmLayer c/c spacingmmLayer-1 centroidmmBars continued to supportStirrup ømmStirrup legsStirrup spacingmmSlab bar ømmSlab bar spacingmm

Bars in each layer (soffit up)

+ layer− layer

Live load, wind and seismic

IRC:6 Cl. 204, 209, 211, 219

Vehicles considered (Cl. 204.1, Table 6A)

IRC Class A train of vehiclesIRC Class B train of vehiclesIRC Class 70R WheeledIRC Class 70R TrackedClass AA TrackedClass AA WheeledClass 70R BogieSpecial Vehicle (IRC:6 Annex J)

g (kN per tonne)editableLanes loadedWind pressure P_zN/m²Cl. 209 Table 12Basic wind speedm/sZone factor ZCl. 219Importance factor IS_a/gResponse reduction R

Derived geometry

Deck overhang each side0.600m

Girder length (out to out)20.800m

Σx² (Courbon)Courbon31.250m²

b_eff interiorCl. 7.6.1.22.500m

b_eff exterior1.850m

Cross-girder spacing5.000m

Kerb face from edge0.600m

Section properties (interior)

A0.9640m²

y_b1.1464m

I0.2191m⁴

Z_t0.4830m³

Z_b0.1911m³

Material design values

f_cd = α f_ck/γ_cCl. 6.4.2.815.633MPa

f_yd = f_y/1.15434.78MPa

f_ctmTable 6.52.771MPa

E_cm32308MPa

modular ratio m6.190