Free Tool · EN 1993-1-1 §6.2.5 / §6.2.6 / §6.2.8

Beam Moment Capacity Calculator

Compute bending resistance M_c,Rd (§6.2.5) and shear resistance V_pl,Rd (§6.2.6) for rolled I-sections. Auto section classification per Table 5.2 (ε = √(235/f_y)). Shear-moment interaction §6.2.8 when V_Ed > 0.5·V_pl,Rd. IPE, HEA, HEB, HEM, UB, UC.

Beam Parameters

Section

Steel grade

National Annex

Partial factor γM0

Applied moment MEd (kNm) — optional

Enter to compute utilisation η = MEd / Mc,Rd

Applied shear VEd (kN) — optional

Enter to compute η_V and §6.2.8 interaction

Results

Class 1 — Plastic (Wpl,y)

223.08

kNm

Mc,Rd §6.2.5 (kNm)

526.3

kN

Vpl,Rd §6.2.6 (kN)

628.4

cm³

Wpl,y (mm³)

2568

mm²

Av,z shear area (mm²)

Web c/t 39.24

Flange c/t 6.68

ε = √(235/fy) 0.8136

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Cross-section diagram & M-V interaction envelope

Step 1 — Section classification (EN 1993-1-1 Table 5.2)

ε = √(235/fy)
Web c/t: (h − 2·tf) / tw  vs  72ε / 83ε / 124ε
Flange c/t: (b − tw) / (2·tf)  vs  9ε / 10ε / 14ε

Step 2 — Bending resistance M_c,Rd (§6.2.5)

Step 3 — Shear resistance V_pl,Rd (§6.2.6)

Step 4 — M-V interaction §6.2.8

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      Engineers typically run Mc,Rd then LTB back-to-back — the LTB check often governs in longer beams.
    

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