Weld Strength Calculation - Fillet Weld, Groove Weld, and Base Metal Load Capacity

Learn how to calculate the strength of fillet welds, groove welds, and the base metal in a steel connection. Video discusses the stresses in a welded joint and the formulas required to determine the load carrying capacity. Equations used in the example welding calculations are in accordance with AISC 360 and the Steel Construction Manual.
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0:00 Intro
1:18 Weld Metal
3:48 Fillet Welds
7:37 Base Metal
9:02 Structural Central
#structuralcentral, #structuralengineering, #structuralengineer
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Disclaimer:
This video and the information included are for informational purposes only. Structural Central makes no warranty and disclaims all responsibility and liability for the completeness, accuracy, and applicability of any of the contents of the video or any related comments. Any decisions or designs made using the information provided must meet all of the requirements of the building code and be done by a person that is qualified to do so as determined by the authority having jurisdiction. Reliance on any information provided within is solely at your own risk.

[@owenk7769]

Great Video. I love how you listed out all the equations and the code references. The graphic are also very helpful. Thank you for sharing, and I look forward to your future videos.

[@StructuralCentral]

That was very thoughtful and kind. I look forward to continuing to help others gain a deeper understanding of structural engineering in a simple, clear way.

[@ludwigvonrothbard1207]

Thank you. Very well done, interesting and helpful.

[@StructuralCentral]

Thanks for the comment! I'm glad you found it to be helpful.

[@FelixMatveev]

Very interesting!

[@StructuralCentral]

Thank you! At first glance, many people tend to underestimate the complexity involved in the design of welds.

[@NachoPage92]

Gracias por compartir el material. Saludos!

[@StructuralCentral]

¡De nada! Me alegra que te haya gustado. ¡Saludos!

[@Szhihihihihihi]

Thank you !

[@StructuralCentral]

You're welcome :-)

[@saqibhayat9588]

Love the 0:50 book opening aound. Reminds me of SEGA games of my childhood. 🎉❤

[@StructuralCentral]

Haha, I can see that. I'm glad this structural engineering video could give you some nostalgia!

[@chalelitowelding6688]

Thanks, helpful info for my cweng exam

[@StructuralCentral]

That's great! Best of luck to you :-)

[@AnbazhaganRamasamy]

Thank you for the valuable information. Is there any similar available for aluminium welded connections?

[@StructuralCentral]

There are special considerations that are unique to the design of aluminum welded connections.
In Chapter 20 of the 2021 International Building Code (IBC), they direct you to the 2020 Aluminum Design Manual for the strength of aluminum used for structural purposes in buildings and structures. You may also be able to find some information about welding aluminum in American Welding Society (AWS) D1.2, Structural Welding Code - Aluminum.
I hope this helps!

[@cesarguzman8744]

Wow now i can see my desing from other point of view, good video. When more?

[@StructuralCentral]

I'm glad could offer you a different perspective! You can watch all of the other Structural Central videos by checking out this playlist: th-cam.com/play/PL1FuGlk3r9cSAOkPoh0p-sjDrmmpICqev.html

[@StructuralCentral]

You can also subscribe so that you don't miss any future videos!

[@RunnerProductions]

Nice content, can you publish something about dig depth and concrete diameter size to hold any type of pole or tall structure built on 'stilts'?

[@StructuralCentral]

Determining the soil pressures and stability of an embedded pole is a subject that is both interesting and complex, so it would be a good topic to make a video about. I'll keep that idea in mind. Thanks for the suggestion!

[@faizulzuraimi5393]

Would the same calculation also apply if the load is applied in normal direction//out of plane to the weld?
Ie imagine i have a pipe leaking. I plan to patch it up with a steel and weld via fillet weld. The force (water pressure from the hole) is acting in normal direction to the steel plate.

[@StructuralCentral]

I can confirm that for fillet welds, when the load is being applied normal to one of the steel plates (like as shown at 0:40), the fillet welds still use the Shear section from Table J2.5, so the calculation should not change.
You likely can also use the 1.5 directional strength increase factor since the weld axis is 90 degrees from the applied load direction. (AISC 360-22 now limits this to 1.0 for fillet welds at the ends of rectangular HSS loaded in tension.)
You're on your own for determining if that's a good way to patch up a leaking pipe, though ;-)

[@Wilders53]

You forgot something! If a guy named Scott Hall welded on it add 99% strength to whatever the product is 😁👍

[@StructuralCentral]

Haha, we'll have to talk to AISC about adding in a 1.99 Sh factor to Fnw whenever you're the welder. I'm pretty sure, though, that you'd end up with more work than you could possibly handle!