Tentative design of bridge slab

RCC Slab Design with Multi-Lane ILD - IRC:112 (Corrected)

Design per-metre strip (Ast in mm²/m). If ILD is for whole deck, set “Deck total width used in ILD” accordingly; if ILD already per-m set it to 1.

IRC Vehicle Preset --Select Preset-- Class A Class AA HB Class A (2-Lane) Class AA (2-Lane)

Deck span L (m) Position step (m) Section sample points Deck total width used in ILD (m) Set to 1 if ILD is already per meter.
If ILD computed for whole deck (e.g., 8.50 m), set that width here. Strip width b (m) — design strip (usually 1 m) Slab thickness D (mm) Concrete grade fck (MPa)

Axle loads (kN) — comma separated Axle spacings (m) — comma separated Include slab self weight? Yes No Steel grade fy (MPa) Concrete cover (mm) Main bar diameter (mm) Wearing-course density (kN/m³) Wearing-course thickness (mm)

Worst-case Moment Diagram

Worst-case Shear Diagram

Vehicle Position & Internal Forces

Shift (m)	Max M (kN·m)	x (m)	Max V (kN)	x (m)

Slab Reinforcement & Quantities