What This Bolt Tension Calculator Helps Check
The bolt tension calculator supports focused review of a steel bolt loaded in tension. It is intended for quick engineering checks where bolt grade, diameter, tensile stress area, and applied tensile force need to be assessed before carrying the result into a wider connection design.
Typical Inputs
Common inputs include the applied tensile force, number of bolts, bolt diameter, bolt grade or ultimate strength, tensile stress area, k2 factor, and the partial factor used for bolt resistance.
EN 1993 Steel Connection Context
Steel bolt tension checks are normally reviewed as part of an EN 1993 connection design workflow. The result should be considered alongside bolt shear, bearing, punching, prying effects, spacing, edge distance, plate bending, and any combined-action checks required by the project.
Tensile Stress Area and k2 Factor
Bolt tension resistance depends on the selected tensile stress area and the k2 factor used by the design basis. The input values should match the selected bolt type, grade, and connection detail.
Result Review
The engineering tool reports resistance, utilization, and pass/fail status so the bolt tension check can be reviewed clearly. The output is for preliminary engineering review and should not replace a full connection design by a qualified engineer.
Practical Use
Use this check when reviewing EN 1993 bolt tension resistance, steel bolt tensile resistance workflow, or bolt tension capacity in a connection.
Frequently Asked Questions
What is a bolt tension check?
A bolt tension check reviews whether a bolt has enough tensile resistance for the applied axial tensile force in a connection.
What inputs are usually needed for bolt tension resistance?
Typical inputs include bolt diameter, bolt grade or ultimate strength, tensile stress area, number of bolts, applied tension, k2 factor, and the relevant partial factor.
Does bolt tension need to be checked with shear?
Sometimes yes. If a bolt is loaded in both shear and tension, the combined action should be reviewed according to the project design basis and connection detail.
Is bolt tension the only check needed for a steel connection?
No. Bolt tension is only one component check. Shear, bearing, punching, prying effects, plate bending, spacing, edge distance, and the full load path may also need to be reviewed.