Anchor Bolt Calculator
Calculate pullout and shear capacity of anchor bolts embedded in concrete.
How to Use the Anchor Bolt Calculator
- Enter the bolt diameter in mm.
- Enter the embedment depth in mm.
- Enter the concrete compressive strength in MPa.
- Click Calculate to get pullout and shear capacities.
Casi d'Uso
- •Column base plate anchor design.
- •Equipment anchoring to concrete floors.
- •Structural connection design checks.
- •Construction engineering education.
Formula
Pullout = π × d × hef × ft / 1000 kN, where ft = 0.33√fc. Shear = 0.6 × Pullout.
Domande Frequenti
What is embedment depth?
The embedment depth (hef) is the length of the bolt embedded in concrete, measured from the surface.
What concrete strength should I use?
Use the characteristic compressive strength (fc'). Common values: 20, 25, 30, 40 MPa.
Is this suitable for all anchor types?
This is a simplified estimate for cast-in-place bolts. Post-installed anchors need manufacturer data.