What's inside (4 pages)
Page 1 — Beam-to-Column Moment Connections
ClassificationT-stub analogy, EN 1993-1-8 Table 6.4
End-plate thicknesst_p = M / (f_y × Z_eff)
Bolt group tensionF_t,Ed = M / (h_n × Σy_i²)
Page 2 — Haunch & Stiffener Design
Haunch cap platet ≥ 0.5 × t_w (column web)
Stiffener widthb_s ≥ (b_f,c − t_w,c) / 2
Welds to flangea = 0.7 × min(t_p, t_fc) / √2
Page 3 — Weld Sizing (EN 1993-1-8 §4.5.3)
Min fillet welda_min = 3 mm
Max fillet welda_max = 0.7 × t_min
Longitudinal weldsβ_w factors per Table 4.1
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What the cheat sheet covers
01
Beam-to-Column Moment
T-stub analogy, end-plate design, bolt tension
02
Haunch Connections
Cap plate, stiffener geometry, weld sizing
03
Weld Design
§4.5.3 fillet weld sizing, β_w factors
04
Apex / Ridge Connections
Splice plates, haunch geometry, NA tables
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Free calculator: EN 1993-1-8 Bolt Capacity Calculator — Fv,Rd, Ft,Rd, Fb,Rd for M12–M36, grades 4.6–12.9, no sign-up.
Related cheatsheet: Column Baseplate Design Cheatsheet — EN 1993-1-8 §6.2.5, T-stub method, anchor bolts, HEA 240 worked example.
Try FrameAI — upload a steel drawing PDF and get fabrication-ready shop drawings in under 60 seconds.
Start for free →
Free calculator: EN 1993-1-8 Bolt Capacity Calculator — Fv,Rd, Ft,Rd, Fb,Rd for M12–M36, grades 4.6–12.9, no sign-up.
Related cheatsheet: Column Baseplate Design Cheatsheet — EN 1993-1-8 §6.2.5, T-stub method, anchor bolts, HEA 240 worked example.