NSCP 2015 RC Beam Design Calculator

NSCP 2015

Check mode

Members

Project name

Member name

Level

Grid

Designer

Checker

Date

Revision

f′c (MPa)

fy (MPa)

fyt (MPa)

λ (0–1)

Aggregate size (mm)

Preferred bar diameters (Design Mode)

Ec: 24870β₁: 0.850εy: 0.00208

bw (mm)

h (mm)

Span (m)

Support condition

Top cover (mm)

Bottom cover (mm)

Combine ends

Left End station

Factored loads

Mu top (kN·m)

Mu bottom (kN·m)

Vu (kN)

Top bars

Layer 1 bars

db (mm)

As = 981.7 mm² · Ab = 490.9 mm²

Bottom bars

Layer 1 bars

db (mm)

As = 1472.6 mm² · Ab = 490.9 mm²

Stirrups

Legs

dst (mm)

Spacing (mm)

Av = 157.1 mm²

Mu+ (kN·m)

Mu− (kN·m)

Vu (kN)

⊕ = bottom tension | ⊖ = top tension

Frame type

Seismic zone

Column width (mm)

Required for deflection checks (NSCP 2015 §424). Enter unfactored service loads at the middle station.

Dead load wD (kN/m)

Live load wL (kN/m)

Sustained LL wL,sus (kN/m)

Δ limit — immediate (L/)

Δ limit — total (L/)

Sustained duration

Include self-weight in dead load

Δ_allow,imm = L / 360 = 16.7 mm | Δ_allow,total = L / 480 = 12.5 mm

Live cross-section

bw × h: 300 × 500 mmd: 0 mmAs,top: 0 mm²As,bot: 0 mm²

NOT EVALUATED

Run Calculate to evaluate all stations and view the summary.

Disclaimer

This calculator implements selected provisions of the National Structural Code of the Philippines 2015 within its documented and verified scope. It is intended for education, preliminary checking, and engineering workflow assistance. It does not replace a complete structural analysis, project-specific code review, construction documents, or the signed and sealed design of a qualified Civil or Structural Engineer. All inputs, assumptions, load paths, analysis results, detailing, code references, and outputs must be independently reviewed by a licensed engineer.