Groove Weld Strength
CJP / PJP groove-weld shear capacity on the effective throat (ASD / LRFD).
Example
You enter
- Weld type PJP
- Effective throat (in, PJP) 0.25
- Weld length (in) 6
- Electrode (FEXX) E70
- Method LRFD
You get
- Effective throat / unit strength 0.25
- Shear capacity 47250
Details, formula, and sources
With the CJP base-metal note and utilization (AWS D1.1 / AISC 360 §J2).
Effective throat: CJP = thinner connected part thickness, PJP = WPS effective throat; weld-metal shear (AISC Table J2.5) Fnw = 0.60*FEXX; ASD allowable 0.30*FEXX, LRFD design 0.75*0.60*FEXX; capacity = stress * throat * length.
Groove weld (CJP / PJP) shear capacity - the AISC 360 Table J2.5 weld-metal shear strength 0.60*FEXX on the effective throat - per AWS D1.1 Structural Welding Code and AISC 360 §J2, by name; first-principles.
First-principles AISC J2 shear. A CJP weld with matching filler develops the base metal in tension/compression; the PJP effective throat is read off the qualified WPS. The WPS, weld inspector, and engineer of record govern.
Estimate. AHJ and licensed structural engineer govern.
Field names used by the API: weld_type, effective_throat_in, length_in, electrode, method, throat_in, capacity_lb
- Effective throat CJP uses the thinner part thickness; PJP uses the WPS effective throat (groove depth less the AWS Table 3.1 reduction); user-suppliedAWS D1.1 Table 3.1