Parking deck colapse, Lakewood city OH, Dec 27, 2021 3

[FacEngrPE]

Tenant: Missing concrete, exposed rebar structure found night before parking deck's collapse

Although the collapse did not result result in any injuries or deaths, it remains the subject of an investigation by Lakewood city officials who said permits had not been issued for ongoing construction activities at the site.

Structure is reported to be built in 1963.

 

[Alistair_Heaton]

It remains unclear what role, if any, the construction activity had on the garage collapse and whether the exposed or missing rebar support had a role in the catastrophic failure. Numerous vehicles were crushed, including Myers’ Mazda.

Its pretty clear if you take away the compressive load carrier what's going to happen.

But it looked nice for a day or two.

 

[Cool_Controls]

I wonder if a PE stamped the repair plan?

 

[FacEngrPE]

permits had not been issued

So no PE stamp required as not submitted for code compliance plans review? Probably will not end well.

 

[dik]

I wonder how much other stuff is out there in this type of condition.

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

-Dik

 

[Cool_Controls]

No permits no stamp, low bid no doubt.

 

[Settingsun]

Do you need a permit for maintenance works?

 

[Ingenuity]

Do you need a permit for maintenance works?

In the US, every city and county is different. In my jurisdiction it states:

“repairs valued at $5,000 or less in the aggregate in any 12 month period are exempt from a building permit”

 

[JohnRBaker]

Well, if they spent less than $5,000 on this parking structure repair, it would appear that they got what they paid for ;-)

John R. Baker, P.E. (ret)
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

 

[hokie66]

At least, this one won't require an extensive investigation to figure out what happened.

 

[dik]

I guess the purpose is to encourage maintenance... like Part 11 of the Ontario Building Code.

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

-Dik

 

[bones206]

Wonder if that structural downspout inadvertently saved the guy wielding the jackhammer…

 

[dik]

It happens... I did a collapse report on a building about 20 years back. A worker closed the door and the large structure (about 150'x100') totally collapsed behind him. In checking the 'real' loads, including estimated (from thickness) snow load and using Euler's buckling for the web members, the strength:load ratio was just slightly over 1.0 (no load factors and no material property factors). I figure it was so close to collapse that the air pressure from him closing the door may have precipitated the collpse.

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

-Dik

 

[hpaircraft]

Am I interpreting that photo correctly?

It looks like all of the concrete matrix has been chipped away from the steel reinforcement of the column, leaving nothing but the steel. This work appears to have been accomplished on two adjacent columns, with no struts or jacks in sight to assume the compressive loads reacted by the columns.

This seems seriously crazy. Who in their right mind would do such a thing?

 

[human909]

Well, if they spent less than $5,000 on this parking structure repair, it would appear that they got what they paid for

They got a bargain. It normally cost far more that $5,000 for an experienced demolition crew to perform such a job. It probably only took Joe a few hours work and a couple hours clean up. Looks like a clean job, I'd hire Joe any day for my next demolition job.

 

[SWComposites]

The low bid contractor.

 

[AusG]

Nice neat job cutting the concrete at the top too. Nice to see pride in workmanship. The question here is not what happened but: what were they thinking? Supplementary question, how did they not kill themselves in the process?

 

[phamENG]

I guess that's what happens when the contractor misses the "temporary shoring is the responsibility of the contractor" note...

 

[JohnRBaker]

Could be two different contractors who messed up their schedules.

This happened once when I was in college. They were making some changes on the campus and one of the projects was to move some electrical services from one building to another, moving them from an overhead arrangement to underground. So the first contractor shows up and digs a nice 50 to 60 ft long trench from one building to the other. A couple of weeks later, they came back and filled it all in, and replanted the grass. Exactly three weeks later the electrical contractor shows up looking for the trench, which of was no longer there. It seems that when the university was putting the contracts together, no one noticed a typo in the month part of the date specifying when the electrical contractor was supposed to start his part of the project.

John R. Baker, P.E. (ret)
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

 

[hokie66]

Yes, stupidity is rampant.