Use this engineering calculation for a transparent preliminary estimate or independent arithmetic check when geometry, materials, loads, operating conditions, and units are defined consistently.

Total Tension Newtons (N)

Required number input.

Anchor Count

Required integer input.

Average direct tensile load per anchor under equal concentric load sharing; not an anchor design-strength calculation. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Tension Per Anchor Newtons (N)

The resulting tension per anchor newtons returned as a number.

• Connection capacity depends on material grades, geometry, edge distance, pretension, threads, weld quality, prying, combined actions, fatigue, corrosion, and code resistance factors. A single tensile, shear, or stress check is not a complete connection design.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check assumptions against drawings, measurements, current material data, and the applicable design code. Apply required load combinations and safety factors, then obtain qualified review and testing for consequential designs.

• Bolt Group Shear

  Average direct shear force per bolt for a concentric load shared equally by identical bolts; excludes eccentricity and prying.

• Euler Buckling Load

  Ideal Euler elastic buckling load π²EI/(KL)² for a slender prismatic column; not a design capacity or inelastic check.

• Factor Of Safety

  Nominal strength-to-applied-demand ratio for quantities expressed in the same units; does not select an acceptable design margin.