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Topic: Any other structural engineers around here
Replies: 11   Last Post: Jun 25, 2021, 2:42 PM by: raventiger
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Replies: 11  

Any other structural engineers around here

[4]
Jun 25, 2021, 12:12 PM

Every time this happens I get nervous about the 100s of buildings, and well over 1000 jobs, that I've designed over the last 25 years.

https://twitter.com/wsvn/status/1408054046808805379

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Re: Any other structural engineers around here

[2]
Jun 25, 2021, 12:25 PM

Yep. I'm in the design industry too. Think about my decisions all the time. Public safety #1, no compromises. Just always have those calcs to back it up. :)

Speaking of which, remember that prefab bridge collapse in florida a few years back? The one that failed while they were swinging it across the freeway. It was basically an enormous truss but it collapsed at one of the end points I think. Ever hear any post mortem on that?

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It's imperative to have a LOT of safety meetings.***

[2]
Jun 25, 2021, 1:00 PM



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Re: Any other structural engineers around here

[2]
Jun 25, 2021, 2:13 PM

There's an NTSB report on the FL pedestrian bridge collapse. It was showing all sorts of signs of failure before it failed. HUGE cracks. but the remedies they tried to shore it up actually made it worse and caused the failure. you can get into the details if you've got 3 hours below. If I remember, the original design was way under designed, then when it started failing they tried to add post-tensioning to the struts that caused it to fail.

https://www.youtube.com/watch?v=fdUf-_el9vA

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Re: Any other structural engineers around here

[1]
Jun 25, 2021, 2:24 PM

Thanks!
For that florida condo I was thinking there must have been all sorts of finish cracking or surface indications something was going terribly wrong. Assuming no extra load was added, no fire, and it was a 40 year old building a catastrophic collapse is a real mystery.

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I hope every single SE gets sued to oblivion***

[1]
Jun 25, 2021, 12:35 PM



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Say you're unintelligent without saying you're unintelligent***

[3]
Jun 25, 2021, 2:15 PM



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There is a statute of limitations with respect

[2]
Jun 25, 2021, 1:41 PM

to the work done on that building....

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well i doubt the se who designed that if alive is still

[2]
Jun 25, 2021, 2:13 PM

working

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How many people were lost in this ? Seems like it should

[2]
Jun 25, 2021, 2:30 PM

be several hundred . . . horrific. Hard to watch.

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I read 100+ are "missing", 55 units were destroyed

[3]
Jun 25, 2021, 2:34 PM

that would be about 2 people per unit, which would seem about right, figuring some empty, some with 3+.

Gonna be a grisly task when thy start picking up the layers of 12+ floors.

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Re: Any other structural engineers around here

[3]
Jun 25, 2021, 2:42 PM

I only have a 50 year old arch degree, but my initial reaction was that the collapse just didn't come out of the blue. I then heard that this building had issues for years ... subsoil problems and detectable sinking every year. Clearly a base structural design issue ... grade beams (?) not enough heft or surface area, or piles (?) not deep enough. Those unaccounted for are not likely to have survived. GOD bless those souls!

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