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Florida International University Bridge Collapses, Cars Underneath
miami.cbslocal.com ^ | 03/15/2018 | Staff

Posted on 03/15/2018 11:32:16 AM PDT by Red Badger

MIAMI (CBSMiami) — Florida International University’s massive new pedestrian bridge collapsed Thursday afternoon in West Miami-Dade.

The bridge, located at 109th Ave and 8th Street, collapsed on a number of cars.

There are reports of numerous people injured in the collapse. At least one person was taken as a trauma alert to the hospital, according to Miami-Dade Fire Rescue.

The 950-ton bridge went up on Saturday. It was then lowered into its final position, just west of 109th Avenue that day.

The main span was built next to Southwest 8th Street.


TOPICS: News/Current Events; US: Florida
KEYWORDS: 100yearbridge; bridge; bridgecollapse; cat5hurricane; epicfail; fiu; fiubridge; florida; hindsightis2020; miami; stresstest
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To: SkyDancer

174 feet, but I don’t know if that’s the entire bridge or just this span. I just found out that this was to be a suspension bridge upon completion. The cables weren’t in place yet.


261 posted on 03/15/2018 1:01:02 PM PDT by Moonman62 (Make America Great Again!)
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To: Reno89519

Thank God for that much. Not opened to foot traffic? Miracle.


262 posted on 03/15/2018 1:01:53 PM PDT by RinaseaofDs
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To: EarthResearcher333

Failure analysis ping.


263 posted on 03/15/2018 1:01:57 PM PDT by EVO X
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To: al_c

Could that crane have been tightening something...


264 posted on 03/15/2018 1:02:09 PM PDT by mewzilla (Has the FBI been spying on members of Congress?)
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To: Mouton
Who was the engineer on that project??

And did they claim that math was racist?
265 posted on 03/15/2018 1:02:37 PM PDT by Ellendra (Those who kill without reason cannot be reasoned with.)
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To: Moonman62

ABC News saying that a stress test was taking place on the bridge at the time of the collapse.


266 posted on 03/15/2018 1:02:41 PM PDT by BunnySlippers (I love Bull Markets!)
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To: frog in a pot
Just as bad, if it was cast-in-place the shoring may have been removed prematurely.

Concrete does not reach maximum strength until sometime after pouring:

One criteria used is the 28-day test strength as the allowable stress value for the design. There are high early strength concretes that can give you quicker curing times but 28 days is the norm.

For many purposes, concrete can be used or loaded at earlier times depending on circumstances. Normal concrete will get about two thirds of its strength in just 7 days so many times that is the criteria for some uses.

How long does it take freshly poured concrete to cure to full strength?


267 posted on 03/15/2018 1:03:00 PM PDT by CedarDave
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To: chris37

Wouldn’t it better if they protested on the football field for 32.174 minutes?


268 posted on 03/15/2018 1:03:29 PM PDT by ProtectOurFreedom
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To: Red Badger; All

The bridge collapsed during a stress test!!! With traffic underneath. 3rd World Construction and Incompetence.


269 posted on 03/15/2018 1:04:16 PM PDT by Reno89519 (Americans Are Dreamers, Too! No to Amnesty, Yes to Catch-and-Deport, and Yes to E-Verify.)
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To: Reno89519

Been trying to get onto the FIGG website but looks like it may be offline - wondering why. /s


270 posted on 03/15/2018 1:04:16 PM PDT by reed13k
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To: Moonman62
I just found out that this was to be a suspension bridge upon completion. The cables weren’t in place yet.

I'm no bridge building expert, but I'd think the suspension would have to be in place before attempting to place an entire section of bridge, right?

271 posted on 03/15/2018 1:04:38 PM PDT by al_c (LIBERAL - Laughable Iconsiderate Blaming Entitled Ranting Anti-christian Loudmouth)
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To: Mouton
"Who was the engineer on that project??"

Probably some foreigner... We Americans are not qualified to build our bridges nowadays... Just ask the government, they'll tell'ya...

272 posted on 03/15/2018 1:04:38 PM PDT by unread (Joe McCarthy was right.......)
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To: shelterguy

The reporting is very misleading. As I read it what was innovative was use of Self Propelled Modular Transport. This was simply placement of a span cast (in this case) beside the roadway instead of over it to reduce danger during construction and simplify the construction of the concrete span.Mobile heavy lift units then placed the completed span on its permanent supports (apparently last Saturday).
Looking at the pictures I would guess either failure of the anchors on the prestressing cables in the unit, bad design, substandard concrete or bad placement of the concrete (insufficient vibration?)any of these possible especially with the widespread use of illegal labor in the industry in So. Florida.


273 posted on 03/15/2018 1:04:41 PM PDT by slorunner
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To: al_c
Oh my God that's horrible .. at least they would never have known anything about it  :-((
274 posted on 03/15/2018 1:05:13 PM PDT by tomkat
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To: ProtectOurFreedom; Red Badger
Company Deleted Tweet Touting 'Structural Monitoring' of Pedestrian Bridge That Collapsed

http://popculture.com/trending/2018/03/15/pedestrian-bridge-collapse-company-delete-structural-monitoring-tweet/

275 posted on 03/15/2018 1:05:15 PM PDT by rxsid (HOW CAN A NATURAL BORN CITIZEN'S STATUS BE "GOVERNED" BY GREAT BRITAIN? - Leo Donofrio (2009))
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To: Reno89519

Looks like it failed the test....................


276 posted on 03/15/2018 1:05:17 PM PDT by Red Badger (The people who call Trump a tyrant are the same people who want the president to confiscate weapons.)
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To: SkyDancer

The slump can be variable. I’ve designed concrete mixes with zero inches of slump, but those were for airport concrete pavements. Zero slump mix is very hard to work, flow, and finish.


277 posted on 03/15/2018 1:06:03 PM PDT by shotgun
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To: SkyDancer

Eyep...before a mixer even starts pouring the concrete that test is done
on every truck load....


278 posted on 03/15/2018 1:06:06 PM PDT by Doogle (( USAF.68-73..8th TFW Ubon Thailand....never store a threat you should have eliminated)))
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To: BunnySlippers

“ABC News saying that a stress test was taking place on the bridge at the time of the collapse.”

They did a stress test with a bunch of cars full of people under the bridge?

Here is another image of the project as it would have looked.

http://www.miamiherald.com/news/local/community/miami-dade/west-miami-dade/wwwt0d/picture204506074/alternates/FREE_1140/IMG_View-1-comp__1__7_1_P9C6OBGT_L337097734


279 posted on 03/15/2018 1:06:17 PM PDT by ltc8k6
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To: Red Badger

Looked like some sort of open web joist type structure, constructed off site and brought into place. Sometimes designed turnkey by a specialty subcontractor. Oftentimes relying on software to size the members and connections. Places to look - value engineering to reduce costs and perhaps the qualifications of the general contractor.


280 posted on 03/15/2018 1:06:59 PM PDT by Chauncey Gardiner
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