Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Partial Collapse of Building Under Construction 4

Status
Not open for further replies.
bimr

bimr

Civil/Environmental
Joined
Feb 25, 2003
Messages
9,379
Location
US
Two people were critically injured in a partial building collapse of a building under construction in suburban Chicago Illinois on Monday afternoon, December 28, 2020, Westmont village officials said. A spokesperson for the village said around 12:30 p.m. there was a partial collapse at a new multi-use condominium building under construction at the intersection of Cass Avenue and Quincy Street.

Quincy Station

Link

DSC_0987_zyccfn.jpg


DSC_0990_eea9em.jpg


DSC_0988_clcpvb.jpg


DSC_0986_qyro1q.jpg


DSC_0989_1_kaxml1.jpg


DSC_0985_sicp4l.jpg


Picture7_vtfx1n.png


Picture6_pauxrr.jpg


Picture4_tnyh6i.jpg


Picture8_i6dnus.png


Picture9_s5zwrf.png


Picture11_xamhzq.jpg
 
Sort by date Sort by votes
Speculation at the moment, but precast structures like this often have stability issues before everything is tied together. Or, as there are some pictures of cranes which seem a bit askew, it could have been a lifting failure?
 
Upvote 0 Downvote
It looks perhaps like at least one of the 'cranes' may have slipped or sunk into something. It seem to be sitting pretty low on the job site. Could there have been a foundation or retaining wall collapse resulting in some earth moving under the equipment?

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without
 
Upvote 0 Downvote
OSHA inspectors were on the site today with a drone. Both ends of the structure are now propped up with temporary supports. The question is whether the structure will have to be taken apart and re-erected.

20210106_112443_scwl4h.jpg


20210106_112510_yjkyjr.jpg


20210106_112526_ddi7ej.jpg


20210106_112616_i8kvcz.jpg


20210106_112710_vl9hbn.jpg


20210106_112802_xabmke.jpg


20210106_113017_ouypof.jpg
 
Upvote 0 Downvote
Those precast beams seem have rotated.

image_zykpil.png


image_ubadta.png
 
Upvote 0 Downvote
the outer one being a spandrel and the inner one seems to have the floor spanning on one side only... with the plank on the LHS spanning the other direction.

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik
 
Upvote 0 Downvote
And that looks like a might split at the top of that one column.
 
Upvote 0 Downvote
Damn precast. Again.
Precast is great in concept, at least.
The robustness of the connections is what gives me the most heartburn.
My strong hunch is that partial collapses during construction occur with precast structures (like the one in this post) far more than cast-in-place concrete or structural steel erection.
Can't prove it, that's just my sparse data set in the framework of my biases.

Aside: Does anyone know of a national database - say from OSHA or similar - which tabulates and logs these events, and makes available to the public?
OSHA has a lot of very good after-incident detailed reports, but I have not seen a comprehensive database.
 
Upvote 0 Downvote

If done right, precast is great... attractive finish, and can be economical... I've done numerous precast buildings, including those in seismic areas.

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik
 
Upvote 0 Downvote
ATSE said:
Aside: Does anyone know of a national database - say from OSHA or similar - which tabulates and logs these events, and makes available to the public?
OSHA has a lot of very good after-incident detailed reports, but I have not seen a comprehensive database.
Click to expand...

I haven't dug into it myself, but I did find this:

 
Upvote 0 Downvote

any suggestions why the column would be split? I cannot think of any, not with the large wide precast beam over.

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik
 
Upvote 0 Downvote
Honestly no I don't have any idea why the column would split like that. Normally I would say a split like that in a concrete member would be due to localized rebar corrosion causing expansion and tension splitting. But a barely loaded, brand new column, doesn't strike me as a candidate for either corrosion or overloading.

Maybe torsion from the beam cause a pry-out type failure of whatever dowel type fastener they had into the top of the column? That's my best guess. You'd think there'd be enough ties near the top of the column to prevent that however.
 
Upvote 0 Downvote

Don't feel bad... I couldn't think of a good reason, either...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik
 
Upvote 0 Downvote
My guess is that on the left side in the yellow circle, water has been accumulated between the elements and then frozen and expanded so that the roof beam has been pushed to the right.
Maybe that is what has made the crack on the right pillar or the pillar has not been completely dry inside, due to the water inside the pillar, the water has frozen and expanded until it cracked.

BR A

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein
 
Upvote 0 Downvote
I don’t think that’s a crack. There are drip stains from water or something all over the structure.
 
Upvote 0 Downvote
Good catch, you may be right that it's picking up something from the bearing pads and staining the surface.
 
Upvote 0 Downvote
Also, in looking at some of these pictures, there appears to be a significant lack of erection bracing in place. Hollow-core diaphragms rely on the grout and all the tie-bars being in place. So even if they started erecting next to the shear walls, there's nothing bracing any of the columns away from the shear walls until the grouting is complete and cured.
 
Upvote 0 Downvote
bones... that explains the 'crack' I couldn't think of a reason for... thanks

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik
 
Upvote 0 Downvote
bones206 said:
I don’t think that’s a crack. There are drip stains from water or something all over the structure.
Click to expand...
Okey you can be right, it is not easy to see in that picture :-)

Then my guess is only that on the left side in the yellow circle, water has been accumulated between the elements and then frozen and expanded so that the roof beam has been pushed to the right. ;-)

Best Regards A

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein
 
Upvote 0 Downvote
I thought it was a crack at first too. Perhaps it was grout dripping down? Looks like they utilized grout sleeves:

Screenshot_2021-01-08_130911_kzcfwm.png
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

saikee119
  • Locked
  • Question Question
Bridge Collapse In South Korea on 25 Feb 2025 during construction
Replies
1
Views
2K
dik
dik
drawoh
  • Locked
  • Question Question
Building Collapse in Toronto Kensington
Replies
2
Views
817
LionelHutz
LionelHutz
AusG
  • Locked
  • Question Question
Bronx Apartment building partial collapse
2 3 4
Replies
61
Views
3K
dik
dik
JStephen
  • Question Question
Cabagan–Santa Maria Bridge collapse
Replies
13
Views
13K
waross
waross
azcats
  • Locked
  • Question Question
Phoenix Building Collapse in Microburst
Replies
17
Views
1K
analogkid2digitalman
analogkid2digitalman

Part and Inventory Search

Sponsor

Back
Top