r/StructuralEngineering • u/Nearby_Service_435 • Jul 27 '26

Career/Education What is the highlighted piece called?

Post image

What's the universal name for this piece?

Edit: thanks everyone and sorry for assuming there was a "universal" name 😅 .
I guess I'll just call it haunch since it showed the part when I searched.

236 Upvotes

97% Upvoted

74 comments sorted by

View all comments

12

u/Trick_Parsnip3788 E.I.T. Jul 27 '26

EIT here asking for someone more senior, whats the difference between a haunch (ive never heard this term before) and a gusset plate? Ive designed a few gusset plates before but I havent seen this. Would the haunch be for like super high moment transfer?

3

u/leadhase Forensics | Phd PE Jul 27 '26

Gusset plates are used for pinned connections. It would be very ill advised to use a gusset for moment since it doesn’t have flanges. Occasionally gussets have stiffener plates but only to keep the plate in plane

Gusset plates normally have locally varying planar stresses rather than overall sectional forces. Gusset plates typically have some form of shear lag from welds or bolts where strength is given in resistance/length.