Steel Moment Connection Calculator

Calculate bolt forces and plate thickness for steel beam-to-column moment connections.

Factored moment at the connection.
kN·m
Factored shear at the connection.
kN
Depth of the beam.
mm
Bolt rows in flange plate (per side).
Bolt nominal tensile strength. A325: 620 MPa, A490: 780 MPa.
MPa
Bolt tensile area. M20: 245 mm², M24: 353 mm².
mm²

Results

Flange Force-kN
Force per Bolt Row-kN
Bolt Tensile Capacity-kN
Demand/Capacity Ratio-
References: AISC 360 — Steel Construction; AISC Design Guide