Radially chamfering stiffner edges instead of a diagonal cut

[GalileoG]

Radially chamfering stiffener edges instead of a diagonal cut (where you have the fillet weld on the supporting beam.) This is done for seal welding. Why is this usually specified, often by oil & gas firms?

 

[msquared48]

I think that this stems from the standard Nautical details for metal ships due to brittle fracture concerns in areas of stress concentrations. You see similar details a lot on ferries in the stiffener connections to the deck plate. There is a lot of continuous vibration on nautical vessels that is not usually a characteristic of land based structures.

We learned a lot about steel detailing from the old Liberty ships...

Mike McCann
McCann Engineering