// Free Engineering Tool

Beam Deflection & Stress Calculator

Calculate maximum bending moment, shear force, deflection and bending stress for simply supported, cantilever and fixed-end beam configurations under point and distributed loads, with automatic section property lookup.

Calculate maximum bending moment, shear force, deflection and bending stress for nine standard beam and loading configurations. Enter factored loads for ULS stress checks or unfactored for SLS deflection checks. Does not check lateral torsional buckling, shear capacity or web bearing.

Cas de charge

Portée L (m)

Charge répartie w (kN/m)

Charge ponctuelle P (kN)

Distance a depuis appui gauche/fixe (m)

Cross Section

Type de section

Largeur b (mm)

Profondeur d (mm)

Diamètre D (mm)

Épaisseur de paroi t (mm)

Épaisseur de bride tf (mm)

Épaisseur d'âme tw (mm)

Poutrelle (UB)

Poteau (UC)

Moment quadratique I (cm⁴)

Hauteur de section d (mm)

Material & Limits

Matériau

Module de Young E (GPa)

Contrainte admissible / limite élastique σ (MPa)

Limite de flèche

Bending Moment & Shear Diagram

Résultats analyse de poutre

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Max Bending Moment

—

kNm

Max Shear Force

—

Max Deflection

—

Span/Deflection Ratio

—

L/δ

Bending Stress σ

—

MPa

Stress Utilisation

—

Second Moment I

—

cm⁴

Elastic Modulus Z

—

cm³

    Classical beam theory. Enter factored (design) loads for ULS strength checks. Enter unfactored (characteristic) loads for SLS deflection checks. Does not check LTB, shear capacity, web bearing or connection design.
    
  

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