FIU bridge collapses...

[WebSnyper]

They did a stress test with traffic passing on the street below? Say what?

Yep, that would seem negligent (of course hindsight is 20/20, and I'm sure all kinds of tests like this occur with traffic, etc, but I'm sure this won't go well for the folks who made that decision). Should be some interesting law suits flying.

 

[Dead Duck]

I'm waiting for the video.
Dashcam, security, ATM, traffic cam. Can't wait.

 

[Fargo]

ThereAre already videos out there, they are posted on most of the major news sites. It sounds like the stress test that was being done was by hanging a series of weights to make sure that there were no distortion’s out of spec. It also sounds like they were tensioning the cables in the lower slab to spec. If some of the reports are to be believed, it was a crane failure dropping something on to the bridge that I actually caused it.

I can say that on the traffic cam video that is widely out there, there does appear to be a hawser or cable swinging violently with nothing on the end at the top of the frame.

 

[Dead Duck]

Now we have reports of CRACKS.

Senator demands docs about collapsed Florida bridge as reports of cracks surface | Fox News

 

[1911ly]

I'm waiting for the video.
Dashcam, security, ATM, traffic cam. Can't wait.

https://www.cnn.com/videos/us/2018/....cnn/video/playlists/florida-bridge-collapse/


Cracks, that's gonna costs someone/company big time. And rightfully so.

 

[Alpo]

Cracks alone wouldn't cause a failure. The post-tensioning cables are significant to the span's performance under load. Perhaps they were detuned to some degree for transport purposes. But the cables hold the bridge span under load and the concrete benefits from such compression.

Lots of possibilities here. But the major failure was allowing traffic to move under the span in the midst of installation and test.

 

[1911ly]

New video shows Miami FIU pedestrian bridge collapsing | Miami Herald

 

[Alpo]

Looks like it failed where the crane was testing. Looking at other video on youtube shows a wrecking ball attached to that crane, and although the videos aren't very clear, the failure seems to occur when the ball touches the roof of the span. The failure appears to be within about 1m of this point.

Hard to be sure though.

 

[Dead Duck]

WOW!
That video is really something.



Life can sure change in an instant.

 

[dugsagun]

Testing DURING traffic?! , that seems like a big no no to me. Someone is gonna get fired for sure. Unfortunately it wont help the people who lost their lives.

 

[Alpo]

Yeah. Looking at some of the videos again, it looked like the crane had a wrecking ball attached before the failure. But I didn't see it swinging from the crane after the failure.

Was the crane contributory?

 

[Dead Duck]

Might it be as simple as pulling the wrong lever?
It did look like it first broke directly under that crane.

 

[Alpo]

I didn't see the nano-thermite though. We'll have to wait for the 9-11 folks to comment.

 

[hoosierdoc]

A witness said he saw something fail from the crane cable and fall onto the bridge right before collapse.

i wonder if testing during traffic was because of local protest to have road closed during construction. Seems they went out of their way to get it up with minimal traffic disruption. Just sad.

 

[Woobie]

Who certified that crane?

Who authorized traffic during the test? Is that an industry standard?

Somebody's insurance company just cancelled the profit sharing checks and the stock dividend.

 

[indiucky]

New video shows Miami FIU pedestrian bridge collapsing | Miami Herald

That school bus was seconds away from being under that bridge.....Wow...

 

[1911ly]

More from AvE

Comes with some colorful language though. As usual with AvE.


https://www.youtube.com/watch?v=KtiTm2dKLgU

 

[1911ly]

That school bus was seconds away from being under that bridge.....Wow...

That would have been even more tragic :-(

 

[jedi]

Just to poke the bear a little.... maybe we should ban bridges to prevent mass killings

Is there a rally by the students yet asking for a ban on bridges?

 

[printcraft]

Holy Crap - I hope this isn't the same type of pedestrian bridge they are putting over 931 on the north side of Kokomo! It is part of a rails-to-trails project. Signs say 931 will be closed on or after 3/20/18.

Where at? Just north of Sycamore by Menards?