RC Beam Design (Flexure + Shear)

Includes SI/US units, code-based flexure+shear, common stirrup spacing selector (Auto/standard), diagrams and dynamic chart tooltip.

Inputs

Units systeminput/output

Design codestandard

Tension bar sizemm

Bars providedoptional

Factored moment M_ukN·m

Factored shear V_ukN

Section geometry

Width bmm

Overall depth hmm

Clear cover to stirrupmm

Stirrup sizemm

Stirrup legs2 or 4

Stirrup spacingmm

Auto computes spacing and rounds to common practice. Manual spacing is checked.

Materials

Concrete strengthMPa

Steel yieldMPa

Results

Flexure: — Shear: —

Compute to see results.

Section diagram (schematic).

Hover on bars to read demand/capacity values.

Item	Value	Units
No results yet.

Theory, formulas & references

Effective depth: d = h − cover − ϕ_st − ϕ_b/2

Bar area: A = π·ϕ²/4

References