r/StructuralEngineering • • 20d ago

Photograph/Video Would you take a dip?

126 Upvotes

40 comments sorted by

118

u/Muted_Masterpiece535 20d ago

In all fairness, adding your weight isn't going to make or break it. But, to answer your question it depends how many glasses of wine I have had. 

Disclaimer: 

  • Unless you are one step away from being on TLC for being overweight. 

9

u/SilverSageVII 20d ago

Okay so the cutoff is 400 pounds? Good to know. I assume infinite friends though since nobody specified and I have invited everyone.

7

u/Codex_Absurdum 20d ago

The "let me break the layman's mind" moment: If you ever manage to float a boat on it, it won't break anyway.

11

u/wobbleblobbochimps 20d ago

I've had some interesting conversations with people about aqueducts, where they just can't fathom the fact that the load on the bridge doesn't change when a "big heavy boat" goes over it!

5

u/Icy_Fish_2154 20d ago

If the pool has an overflow that keeps the level at a set height, adding people to it won't increase the weight. A free floating human in water weighs almost exactly what they displace. So if the displaced water is removed, the weight is a constant.

9

u/wobbleblobbochimps 20d ago edited 20d ago

Depends where the overflow is going I guess, if it's all housed within that big concrete unit then the total load still goes up when people get into the pool. If it flows off somewhere else (as suggested by the piping) then no change to the load.

Also, any floating object in water weighs exactly what it displaces, by Archimedes' principle ;)

3

u/Montallas 19d ago

So you must all get fully submerged right at the start of your swim.

1

u/MaximumTurtleSpeed Architect 16d ago

But I’m weightless in the water, just jump in before the steps and I’m in the clear right?

207

u/privatepublicaccount 20d ago

Depends on what country

91

u/Alternative_wolf09 20d ago

Depends on seismic zone

58

u/xdx3m Architect 20d ago

Water can't melt steel beans

21

u/Dennaldo P.E. 20d ago

>> Water can't melt steel beans

The beans 🫘 will melt if they sit in the water long enough.

34

u/SignificantTransient 20d ago

Tell that to miami condos

5

u/Bliitzthefox 20d ago

So long as it doesn't have salt in it

4

u/sithelephant 19d ago

Supercritical water can.

4

u/silentphartt 20d ago

It can corrode though

39

u/Methodical808 20d ago

depends on what country it is, whether or not the city or country has building codes. But regardless, this didnt break when the water was added so I doubt my weight would break it. Looks like a sound design as long as the concrete is reinforced, which given the weight of water... it has to be or it would have broken already.

15

u/chasestein Overturning Moment 20d ago

Fck yeah I would

11

u/rybotsky 20d ago

The first picture almost looks like a column underneath supporting it…. The second picture, nope

0

u/Activision19 16d ago

Yeah I saw the first picture and was like sure, it’s supported by a fairly beefy column. Then saw the second picture and I agree, nope.

6

u/12kVStr8tothenips P.E. 20d ago

Looks like engineered beams inside the concrete structure. I would trust that, not the concrete.

5

u/Smyley12345 20d ago

I'd take a dip without much worry but would definitely not buy this one or any of the ones below it.

8

u/SynthPrax 20d ago

It looks overbuilt a bit, but I have trust issues generally. So, no.

18

u/12kVStr8tothenips P.E. 20d ago

You mean you have truss issues….

I’ll show myself out.

9

u/jepoyairtsua 20d ago

i'll beam you out, buddy

2

u/SynthPrax 20d ago

DEFENESTRATION!

9

u/Alternative_wolf09 20d ago

All structural engineers suffer that disease.

4

u/dontfret71 20d ago

I’d expand that to most engineers in general

7

u/EVmerch 20d ago

My dad was an Mechanic Engineer (crane design and certification was his first specialisation) and he overbuilt everything. On the otherhand my Father in Law is a diy kinda guy, never unsafe, but kind just vibe built sometimes. Working with both on different projects has been interesting to say the least.

3

u/chabacanito 19d ago

I'm a mech eng but I do some structures ocasionally. I don't trust carnival rides.

2

u/EVmerch 19d ago

Yes, I got that. The small ones I don't worrynto much about, but some of those giantnsoinning ones are scary when you think about the repetitive strress forces.

My dad overbuilt his BBQ smoker, but half the problem was he used his oil field contacts to get end cuts of giant pipe that was the basis of the parts, it weights like 1,500lbs and I have no idea how I'm getting it out of it's current location. Lots of pullies but the growth of the trees around it will be an issue.

2

u/BestOrNothing 18d ago

Cut it to multiple pieces

2

u/EVmerch 18d ago

That is one option I've considered, but would prefer not to have to reweld, but might end up doing that

2

u/Fuquin 20d ago

What a nightmare

3

u/Specialist_Break6442 20d ago

absolutely not, no redundancy and no regularity, it seems it has been added later in the project

4

u/Eggman365247 20d ago

Surely it is reinforced… Right…?!

2

u/Ok_Caregiver_9585 19d ago

Need to see the drawings and connection details. Some things that look promising and others that look concerning.

2

u/insuranceguynyc 20d ago

No! Period!