Steel · Connections: bolts & welds

Block shear rupture calculator

Block shear with the AS 4100 rupture/yield shear plane options and kbs for non-uniform tension.

Standard: AS 4100 Cl 9.1.9

Open the live calculator → All steel calculators

Inputs in the worked example

The live calculator starts with these values; change any of them and every result, check and diagram updates instantly.

InputValueUnit
Gross shear area2400mm²
Net shear area1700mm²
Net tension area500mm²
fy300MPa
fu430MPa
kbs1.0 uniform tension
Design force300kN

Worked example — results

ResultValueUnit
0.6 fu Anv + kbs fu Ant653.6kN
0.6 fy Agv + kbs fu Ant647.0kN
φRbs = 0.75 min485.3kN
shear plane Agv/Anvtension AntN*φRbs = 485.3 kN vs N* 300 kN00.5limit 1.0N* ≤ φRbs0.62 PASS
Diagram for the worked example

Method, formulas and assumptions

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For preliminary design and education. Check every result against the current standard and your own engineering judgement before use.