Eight people injured, two critically, after building owned by Yale University collapses while construction crew was pouring concrete on second floor

Daily Mail ^ | 6/02/23 | Kamal Sultan

[Libloather]

Safety first.

[House Atreides]

Engineering diversity is our strength?

[blackdog]

The engineering and general contracting firms had outstanding ESG scores to win the contract. What possibly could have gone wrong?

[CFW]

“The engineering and general contracting firms had outstanding ESG scores to win the contract. What possibly could have gone wrong?”

---

Building collapses?

[Jim Noble]

Well, RMS Companies is a luxury hotel/apartment developer (nothing is too good for Yale undergrads), but from their website it looks like they are the money people and I'm sure they don't do much engineering.

HOWEVER

I bet dollars to donuts that a contract with Yale probably incentivizes or requires diverse engineering hires, just like the Florida International University bridge collapse - up until the day of the disaster FIU was bragging on the women-owned engineering firm they hired to do the work.

Needs FResearch.

[redshawk]

The structural engineer cannot control the actions of the contractor.

[1of10]

Big difference between the weight and integrity of heavy wet concrete and dry hard concrete .....
never load from the middle and always use temp support

I've see 6 inch deflection in steel structures just pouring 4 inch floors.
HVAC guys will complain the most .....

[House Atreides]

“ The structural engineer cannot control the actions of the contractor.”
*******************************************

That’s true. I’m sure the investigation will determine the cause(s).

[Dagnabitt]

The college that is named after a slave-trader.

But the name is worth $ and status, so they’re keeping it.

[shotgun]

Maybe they forgot to calculate the factor of safety needed to withstand a heavy point load on the floor system. Or they forgot to factor in the weight of the concrete as part of the floor system.

As for contractor, I guess they forgot to toss their air vibrator in the pour to settle the concrete.

[FreedomPoster]

The architect only left the MEP guys 1” of slop to get in the lights + sprinkler + ductwork, so they’re probably justified in griping.

[Jim Noble]

The HVAC/Electrical/Plumbing guys are B2R Consulting Engineers a start-up in business about a year, with 3 very non-diverse principals, but it doesn't look like they did the structural work.

[FreedomPoster]

Great point!

[PAR35]

Six folks pictured at the link. Four guys whose names end in vowels, and two women with hispanic names.

[Jim Noble]

The architects are Lessard Design, as identified in the B2R Portfolio section.

However, 188 Lafayette is not on Lessard's website as part of their portfolio.

[meatloaf]

The inspector can.

I’ve seen a lot of concrete placed for highways, bridges, industrial buildings and institutional buildings.

Depending on the structural design, certain requirements exist like the length of the weld to tie floor joists to embeds or other steel.

I’ve seen contractors try to glue embeds in walls and use the same epoxy incorrectly for anchors that weren’t compatible.

Was the Q deck correct?

Was the pump operator in communication with the concrete crew?

Was a slump test done with the result being within spec.

I’m curious.

[Paladin2]

Has Yale fixed New Haven yet?

[waterhill]

6 inch deflection?

I used to install fuel ust’s. 2 inches would be a major issue.... Same with the guys installing shoring for the tank holes.

[waterhill]

Egg up a fiberglass or frp-coated tank, your ass was in a sling. Liability was 10 million. You did it right or you didn’t do it at all.

[waterhill]

Per tank.