Free Resource · EN 1993-1-8 §6.2.5 · SI Units
Column Baseplate
Design Cheatsheet
4 pages: pinned vs. fixed base decision tree, concrete bearing with NL/DE/BE NA αcc table, full M16–M36 anchor bolt capacity table, and a HEB 300 / C30/37 worked example (N_Ed=950 kN, M_Ed=180 kNm) with utilisation table.
EN 1993-1-8 §6.2.5 + §5.2.2
EN 1992-4 / EOTA TR029
NL · DE · BE National Annex
M16–M36 grades 4.6/8.8/10.9
Concrete cone + supplementary rebar
Shear lug + friction table
Preview — 4 pages
T-stub equivalent method with concrete bearing distribution. Open in browser and Print → Save as PDF.
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What's in the 4 pages
Page 1
Decision Tree & Load Paths
- Pinned vs. fixed base (§5.2.2 S_j,ini thresholds)
- Force flow: column → weld → plate → grout → pedestal → anchors
- Cast-in vs. post-installed anchor decision table
- Three T-stubs for I-section column
- Partial factors γ_M0/γ_M2/γ_Mc
Page 2
Concrete Bearing + T-stub Effective Area
- f_jd = β_j × k_j × f_cd formula
- NL/DE/BE α_cc table (0.85 vs. 1.0)
- c = t_p × √(f_y / (3·f_jd·γ_M0)) — 600×600×30 example
- A_eff zones (flanges + web, overlap cases)
Page 3
Anchor Bolt Design Table
- F_t,Rd table: M16–M36 × grades 4.6/8.8/10.9
- Concrete cone N_Rd,c (EN 1992-4 §7.2.1.4) by h_ef
- Edge distance and spacing minimums (1.5·h_ef / 3·h_ef)
- Friction table (cast-in/grouted/dry pack) + shear lug rule
Page 4
Worked Example — HEB 300 / C30/37 Base
- N_Ed = 950 kN, M_Ed = 180 kNm, V_Ed = 60 kN
- 450×450×30 S275 baseplate — pick c → f_jd → F_c,Rd
- 4× M24 8.8 anchors, h_ef = 350 mm
- Concrete cone N_Rd,c (EN 1992-4 §7.2.1.4)
- Utilisation table — k_j, util_pct, t_min, t_ok
Stop looking up these formulas.
Put them on the wall.
T-stub equivalent method, concrete bearing, anchor bolt tension — the core baseplate checks. FrameAI runs the full EN 1993-1-8 §6.2.5 design automatically, then exports the fabrication drawing with dimensions and part marks.
4
pages — SI units
3
limit states covered
100%
EN 1993-1-8 compliant