Posted on 03/15/2018 11:32:16 AM PDT by Red Badger
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“Cables to WHERE? The pylons were not yet constructed.”
Concrete decks often have post tension cables in addition to the rebar.
Search dog took a time-out to take a dump on the debris!
This would not have happened with center pillars placed in 8th street's media strip. Why a suspension bridge for pedestrian traffic only? Sounds overdone to me and away to run up the tab. Federally funded bridge by the way. Maybe incompetent minority contractors had to be in on the bonanza. Maybe...
The video at the link no longer shows that. Another one down the rabbit hole.
If you click on the video, it takes a long time to load, then you get some other random story. I tried twice and got a shooting story, then reloaded the whole page and got a women’s fitness story.
Those shoring structures are the wheeled vehicles that carried the span to its final position. They were removed.. in hindsight, they should have supported the middle until they were able to install the suspension.
I get it. A suspension bridge without any suspension. At least not right away. Turns out the suspension was needed right away. Suspension design was dumb and a showoff deal. Just build it with center pillars next time and forget any suspension. When this POS is rebuilt (at US taxpayers expense) my bet is suspension will be OUT and center pillars IN.
Thanks for the info... Haven’t delved deeply into the story...yet.
Thanks for the info.
Yup
Yep. That concrete platform, sans any supporting beams, was designed to be suspended. Without the suspension cables, it basically collapsed under its own weight.
There is a reason that we don’t make wrench handles out of concrete. Makes a great pad, but a terrible lever.
I’m an MEP engineer. High-rise buildings are probably the best description of a specialty for me.
Per a reporter on WPLG just now: FDOT officials were on site at the time of the collapse, some sort of stress test had been or was being done, something “involving cables”.
I would look into the fact that it was a span that crossed 8 lanes and a median without being supported.
Well, it does help find X.
Baby steps you know.
“Cables to WHERE? The pylons were not yet constructed.”
Maybe the crane was supporting the bridge. Maybe they were tightened the crane cable and it snapped. I don’t know what he meant. It was obvious that he knew what he meant, but the dumb ABC reported did not ask him to elaborate. In fact the ABC reporter was acting like he did not want to hear what the guy had to say.
An effort to provide safe road crossing by ignoring every safety check and construction method. Unreal. "For the children", of course.
Here’s an interesting connection. The construction company has ties to Manafort.
A suspension design for a short bridge like this helps eliminate the need for a supporting arch or deep vertical steel/concrete supports to hold up the bridge.
And for clarification, this bridge was not designed as a suspension but as a cable-stayed bridge. They look somewhat similar, but on a cable-stayed bridge the cables run directly from the deck to the tower(s) ... while the main cables are suspended from the towers on a suspension bridge.
Okay, someone mentioned there wasn’t any. You’d figure that there had to be.
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