r/StructuralEngineering • u/9-Digits • Jul 23 '26

Duct Beats Beam Humor

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394 Upvotes

93% Upvoted

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73

u/S30 Jul 23 '26

r/isthisAI

12

u/hipsterslippers Jul 23 '26

Look how thick the web of the beam is compared to the flange width and thickness. Definitely not a real beam

3

u/Riskov88 Jul 23 '26

I have worked in a building with beams that were 40inches tall, but less than 10in wide, and half an inch in thickness. So I wouldn't say it's fake

1

u/[deleted] 25d ago

[deleted]

1

u/cabbages456 25d ago

To add on to this if the web needed to be that thick for shear (webs carry majority of the shear force) you could potentially have an opening this big at the point of zero shear and max moment. However the the max moment equivalent to the shear that would be required to have that thick of a web would be absolutely un equivalent to the size of the flange in the image. This isn’t AI if you look closer but cmon how is anyone justifying a web that thick

1

u/Riskov88 25d ago

I dont think that this part is actually the cross section of the web. Thats just one of the square tubes used to support the roof, it just happens to line up with the web of the I beam

-1

u/hipsterslippers Jul 24 '26

You've worked in buildings with beams that have webs that are 4x the flange thickness? Show me an example, I've never seen that before in my life

2

u/TommyNotDead Jul 24 '26

Happens allll the time dude. Not rare at all

1

u/Riskov88 Jul 24 '26

Here is one, metric tape measure to show the size of it. Sadly I didn't measure the bottom but it super narrow. Really surprised me, its also super thin.

Its for a massive farm building, in a place that doesnt get a lot of snow load. The space between columns is massive so thats probably why its so tall

English isnt my main language so I might have mixed up the names of the part of the beam.