Properties of welds
The tables below show the properties of welds
Summary of Weld Equations in CSA S16
These are the main equations for welded connections in CSA S16
| Situation | Type of Weld | Resistance [1] | Reference |
|---|---|---|---|
| Shear | Complete/Partial Joint Penetration Groove Welds Plug and Slot welds | Lesser of: Base metal: Vr = 0.67 ϕw Am Fu and Weld metal: Vr = 0.67 ϕw Aw Xu | 13.13.2.1 |
| Fillet Welds | Lesser of: Base metal: Vr = 0.67 ϕw Am Fu and Weld metal: Vr = 0.67 ϕw Aw Xu (1+0.5sin1.5a) Mw[2] | 13.12.2.2 | |
| Tension | Complete Joint Penetration (CJP) groove welds (matching electrodes) | Same as base metal. | 13.13.3.1 |
| Partial Joint Penetration (PJP) groove welds (matching electrodes) | Tr = ϕw An Fu ≤ ϕ Ag Fy | 13.13.3.2 | |
| PJP groove welds combined with fillet weld (matching electrodes) | Tr = ϕw √( (An Fu)2 + (Aw Xu)2 ) ≤ ϕ Ag Fy | 13.13.3.3 | |
| Compression | CJP Groove Welds (matching electrodes) | Same as the base metal. | 13.13.4 |
| PJP Groove Welds (matching electrodes) | Same as the base metal, for the nominal area of fusion face in compression plus the area of base metal fitted in contact bearing. | 13.13.4 |
[1]: ϕw=0.67; Am=shear area of effective fusion face; An=nominal area of fusion face normal to tension; Aw=Area of effective weld throat, plug, or slot; Fu=Base metal tensile strength; Xu=electrode tensile strength
[2]: The strength enhancement factor (1 + 0.5 sin1.5a) does not apply to single sided fillet welds.
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