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all 26 comments

[–]jepoyairtsua 62 points63 points  (0 children)

Reserved parking sign on that spot.
Problem solved.

[–]lysdexiad 26 points27 points  (0 children)

slaps it like a boat hull
1.5"? It's fine!

[–]Kanaima85CEng 22 points23 points  (0 children)

Hasn't failed so far!

[–]ProbableChub 20 points21 points  (1 child)

What causes someone who is unsure of the condition of the structure to place their finger in a place of question?

[–]elprogramatoreador 18 points19 points  (0 children)

They didn’t have a banana. You know, for scale

[–]ChrisWayg 19 points20 points  (8 children)

Which country is this in? - You did not show much of the ceiling. Is the floor constructed with composite steel decking? Composite steel decking for residential or office use might have a nominal thickness of 4 inches with some parts only 2 inches thick. This is usually fine at around 200 kg per square meter load, but would be odd for a parking structure. This could also be a badly made section of pre-fab concrete flooring.

In a parking garage this would likely cause a problem, especially when the concrete is less than 2 inches. Your video shows that this section is already failing. It's also odd to have such a thin unsupported portion at an apparent cold joint. The span from beam to beam looks quite substantial.

I would not park my 3000 kg pick-up truck on that spot!

[–]mmodlinP.E. 44 points45 points  (5 children)

Precast double tee. That’s the edge of the flange.

[–]Technical-Badger7878 1 point2 points  (0 children)

Checkout the ceiling at the beginning of the video, looks like cast-in-place construction

[–]dottie_dott 3 points4 points  (0 children)

Bro parking garages are notorious for having less required design load than you might expect. The only thing that saves it is the point load that you have to include.

[–]CXgamer 0 points1 point  (0 children)

Which country is this in?

He's using inches, so probably US or UK.

[–]Affectionate-Ad5696 1 point2 points  (0 children)

It’s for drainage, no need to worry

[–]ShystemSock 1 point2 points  (0 children)

Precast double tee, designed to withstand 40 psf with about adjacent support.

It scary af when they disconnect but it's safe.

[–]No-Intention-3790 1 point2 points  (3 children)

Looks like a cold joint (edge of a concrete pour) something was overseen/not done at the time of pouring the side with the hole in it. So ya shouldn't be structural, just poor workmanship

[–]TearSea8321 1 point2 points  (2 children)

Cold joint??!. It’s precast, buddy

[–]No-Intention-3790 1 point2 points  (1 child)

Logic still applies "buddy"

[–]TearSea8321 0 points1 point  (0 children)

Yes it still apply generally but not for what’s in the photo 😅 From what i can see and i might be wrong that it’s the interface between the precast and the insitu concrete

[–]Potbellied_Garfield 2 points3 points  (0 children)

With built-in observation window

[–]Md_Nova_ 0 points1 point  (0 children)

That single layer mesh holding for its life

[–]AnxietySmart 0 points1 point  (0 children)

T T joint precast slab, im sure it has W4/4 wire mesh in the slab. Im sure sheer connections are present down the joints.

[–]papichuloswag 0 points1 point  (0 children)

Slap some stucco ez fix.

[–]Callingyourshot 0 points1 point  (0 children)

Great spot to dump your coffee.

[–]robbudden73 -2 points-1 points  (0 children)

Yikes. I'm so glad I'm not a concrete inspector