Simple beam/slab reinforcement
TCVN 5574:2018From a known design moment M, compute flexural reinforcement area for a rectangular single-reinforced section per TCVN 5574:2018 — low-rise buildings. Includes 5 independent sub-tools: flexural steel, anchorage length, shear stirrups, punching shear and deflection.
About the beam/slab reinforcement tools
A set of five independent calculators per TCVN 5574:2018: flexural steel for singly-reinforced rectangular sections, anchorage/lap lengths, shear stirrup design, punching-slab check and SLS deflection check.
What you enter
Depending on the tab: section geometry, concrete grade, steel class, a known bending moment M or shear force V, column dimensions for punching, or beam span for deflection.
What the results mean
Required steel area (cm²), anchorage/lap lengths (mm), proposed stirrups, punching-safety verdicts and deflection-versus-limit checks — each step shows its formula.
When to use this tool
Preliminary beam/slab reinforcement for low-rise housing once internal forces are known; quickly reviewing a designer's proposal before issuing technical drawings.
Calculation method
This page hosts 5 independent tools per TCVN 5574:2018: (1) flexural reinforcement area for a rectangular single-reinforced section from a known moment M; (2) anchorage and lap splice lengths; (3) shear force and stirrup design for beams; (4) slab punching-shear check at columns; (5) beam/slab deflection check at the serviceability limit state.
Each tool takes section geometry, concrete grade, steel class and design forces; calculations follow the corresponding TCVN 5574:2018 formulas with step-by-step output and a pass/fail conclusion.