Free Base Plate and Anchor Bolt Calculator
Design column base plates per AISC Design Guide 1 (3rd Edition) and check anchor bolts per ACI 318-19 Chapter 17. This comprehensive calculator handles all three design cases (concentric, small moment, large moment) and checks seven anchor failure modes including steel tension, concrete breakout, pullout, side-face blowout, steel shear, breakout shear, and pryout shear.
Features
Full AISC DG1 base plate design (Cases 1, 2, 3). ACI 318-19 Chapter 17 anchor bolt checks (7 failure modes). Tension-shear interaction diagram. Column capacity check (AISC 360). Shear lug design. ASCE 7-22 load combination helper. Design optimizer. Torque specification. Material cost estimator. Downloadable design report. Installation sequence guide.
Supported Column Types
W-shapes (W4 through W24, 48 sizes), HSS Round, HSS Rectangular, and Pipe columns. All standard ASTM F1554 anchor bolt grades (36, 55, 105 ksi) with diameters from 1/2 inch through 2 inch.
Design Standards
AISC Design Guide 1, 3rd Edition (2022). ACI 318-19, Chapter 17. AISC 360-22. ASTM F1554-20. ASCE 7-22.
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