Connection Design Calculator
Calculate the shear capacity of bolted steel connections based on bolt size, grade, quantity, and number of shear planes.
How to Use the Connection Design Calculator
- Enter the bolt diameter in mm.
- Select the bolt grade.
- Enter the number of bolts.
- Select the number of shear planes and click Calculate.
Use Cases
- •Designing bolted beam-to-column connections.
- •Checking capacity of existing bolted connections.
- •Comparing bolt sizes and grades for connections.
- •Structural engineering design documentation.
Formula
Bolt capacity = Fv × Ab × n_planes. Total capacity = Bolt capacity × n_bolts.
Frequently Asked Questions
What is bolt grade 8.8?
Grade 8.8 bolts have a nominal ultimate tensile strength of 800 MPa and a yield strength of 640 MPa.
What is double shear?
Double shear occurs when the bolt passes through three connected plates, effectively doubling the shear area and capacity.
Is it free?
Yes, all calculators on OhMyCalc are completely free.