Poured concrete fail - GIF

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Oct 19, 2020, 12:34 PM
Jon

Poured concrete fail - GIF

Poured concrete fail.

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Previously:

https://www.homemadetools.net/forum/...581#post166823
https://www.homemadetools.net/forum/...576#post166803
https://www.homemadetools.net/forum/...154#post165196
https://www.homemadetools.net/forum/...172#post153757
https://www.homemadetools.net/forum/...558#post123053
https://www.homemadetools.net/forum/...463#post131853
https://www.homemadetools.net/forum/...088#post120617
Oct 19, 2020, 05:12 PM
NortonDommi

Highly skilled inganears. Might even be a a couple of Civil Inganearing doctorate holders in there too.
Oct 19, 2020, 05:37 PM
old kodger

Can you just imagine the cleanup?
Oct 19, 2020, 05:56 PM
jdurand

2 Attachment(s)

Our second floor had precast slabs put down (7 meters wide) and forms just around the stairs. Rebar all around, of course. Then they poured the whole thing...and it stayed!

If I remember right, it's 20cm thick.

Attachment 36941

Attachment 36942
Oct 19, 2020, 06:01 PM
VinnieL

That looks like my concrete skills. Mine has never collapsed though.
Oct 19, 2020, 06:28 PM
toeless joe

Quote:

Originally Posted by NortonDommi

Highly skilled inganears. Might even be a a couple of Civil Inganearing doctorate holders in there too.

Even the rebar in the top left corner is applauding their skills.
Oct 19, 2020, 07:40 PM
Gadgeteer

Probably, wouldn't have collapsed, if the guy in the plaid shirt hadn't stepped in the wrong spot. :headshake:
Oct 19, 2020, 08:02 PM
metric_taper

Looks like the guy running the vibrator caused the column form to fail, which led to this domino failure of all the support forms.
Oct 19, 2020, 08:09 PM
Ralphxyz

Woops, did some engineer approve the decking?
Oct 19, 2020, 08:59 PM
crotchetyoldbastard

The guy in the plaid shirt did it?

Quote:

Originally Posted by Gadgeteer

Probably, wouldn't have collapsed, if the guy in the plaid shirt hadn't stepped in the wrong spot. :headshake:

If the setup was that dependent on the guy in plaid shirt not stepping where he did, an engineer missed a decimal point somewhere! :)
Oct 20, 2020, 03:36 PM
old kodger

They work on the principal of : - Everything forward and trust in the Lord
Oct 28, 2020, 02:38 PM
willyb

Part of it stayed up!
Dec 12, 2021, 06:28 AM
meyer77

Am I missing something here?
what is on the bottom of the rebar to hold the cement in place?
Dec 12, 2021, 07:08 AM
Frank S

Quote:

Originally Posted by meyer77

Am I missing something here?
what is on the bottom of the rebar to hold the cement in place?

If you watch closely at the area that in the far side from the camera where the concrete had not been poured yet you can see the sheets of plywood fall away at the last moment. You can see the parked car on the other side of the street though the rebar afterwards but not before the failure.
The cause of the collapse was not enough supports or not having them tied together horizontally well enough to prevent them from moving or buckling