by FIU - several dead - mostly folks in cars because pedestrians couldn't use the bridge until next year.
This is horrific.
I know the area well. Florida needs a bush bath.
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That bridge collapse in Miami-Dade
In reply to Chrissy
A bush bath?
In reply to Chrissy
that is up your alleyway
In reply to nick2020
Looks like the idiots were doing a stress test in rush hour - did not close that section of the street.
This will do way more damage to Scott et al. Several folks are dead.
The bridge that just collapsed in Miami was designed to withstand a Category 5 hurricane
Here are some, as outlined by the university:
It was designed to withstand a Category 5 hurricane.
Its durability was supposed to exceed 100 years.
It's the first bridge in the world to be constructed entirely of self-cleaning concrete: It's made of titanium dioxide which, when exposed to sunlight, captures pollutant particles from the air and cleans its own concrete surfaces.
It was installed in just a few hours just five days ago, although its construction wasn't finished.
Link Text
Trump will blame Mexicans for the Engineering and Construction.
that is a factory made structure,that was hauled in place and assembled on site; bet my last dollar they failed to bolt some sections together.
In reply to camos
Who knows but the bridge failed the stress test
In reply to nickoutr
Stress test on site? does she know anything about how engineering codes are generated?
Should stick to her expertise, Pitch Rolling and general busseying
In reply to camos
From Local 10
According to the Florida Highway Patrol, there are "several fatalities."
"There are no words to articulate. This is completely unfathomable, and I'm nauseated, and it's completely and utterly unacceptable," one FIU student said.
The 950-ton section of the $14.2 million bridge at Southwest Eighth Street and Southwest 109th Avenue was installed Saturday.
Workers at the scene told Local 10 News reporter Carlos Suarez that the bridge was undergoing some sort of stress test when it collapsed.
Suarez reached out to the construction company for comment, but hasn't heard back, however a vehicle labeled "Structural Technologies VSL" was among those crushed by the bridge. The company manufactures post-tensioning systems for bridges.
I hope Russia eh involved....
nb...if you follow the daily news, Russia all about.
Was it a design error? Did something go wrong during construction?
The answer may be buried deep in the calculations made by workers who were conducting a stress test on the unfinished and vulnerable bridge. Any such test, experts told the Miami Herald, requires extreme care and precision to avoid overwhelming the structure. Too much weight on the bridge or over-tightened cables could cause problems.
The firms behind the project are Miami-based MCM and Figg Bridge Group, a well-known Tallahassee design company. Miami-Dade Mayor Carlos Gimenez said that crews were conducting a stress test on the bridge Thursday, and Miami-Dade Fire Rescue confirmed two workers were on the bridge when it collapsed.
In reply to camos
Did they procure it from Ikea?
Too soon?
In reply to Larr Pullo
Check this
✔
@marcorubio
The cables that suspend the #Miami bridge had loosened & the engineering firm ordered that they be tightened. They were being tightened when it collapsed today.https://twitter.com/officialjoelf/
In reply to Chrissy
My educated guess is that it's a design flaw. I believe the bridge was too heavy and collapsed under its own weight! Many of these type bridges have been installed over New York City highways but are skeleton designs...mostly steel with little concrete.
In reply to Chrissy
Isn't this the kinda stuff that happens in shithole countries??
In reply to NineMiles
In reply to NineMiles
Ding ding we have a winner
In reply to Dan_De_Lyan
Engineers and designers depends on material manufacturers for assurances that their products meet certain standards --- impurities in a steel beam/column can be problematic ----- and with foreign steel imports and builders going for cheap stuff to cut cost --- who knows
In reply to Dan_De_Lyan
Stress test on site? does she know anything about how engineering codes are generated? Should stick to her expertise, Pitch Rolling and general busseying
So, now that it was indeed a "Stress test on site" being done and you should instead stick to your expertise, shouldn't you man up...? (I suspect Chrissy isn't holding her breath though, perhaps because she knows you.)
--Æ.
In reply to JsyMor
Hi bro. Shhhhhhhhh! Leff dat 'eediot'. Ran like di rats in 'Rat Race'.
Wah Bob seh - in di abundance of water a fool is thirsty.
In reply to birdseye
Ignore bro. Di higher monkey climb, di more he expose 'heself'.
In reply to Chrissy and Birdseye
Some real bwoy pon dis board, eh! Some of dem can't even zip up dem pants front so dem likkle pee-pee showing every time.
--Æ.
In reply to JayMor
Yep - on the other hand there are many real men here as well
In reply to JayMor
I just saw something on TV that workers were adjusting the suspension cables on the Bridge when it crashed ---- the question is why didnt they close the road below while they were doing that adjustment ---- or better yet why wasnt everything satisfactorily completed before the road below was opened
talk about negligence if thats what happened
In reply to birdseye
Someone will end up in prison over the failure to close that section of the street.
In reply to birdseye
I saw a similar report, misself. I'm noticing something a bit different from 'our' time... a trend toward a complete trust in technology and the seeming lowered reliance on backup, caution, common sense, etc. How did we ever get to "real-time testing" of something like a bridge? Hard to believe that there aren't laws against such wild practices.
--Æ.
In reply to JayMor
It's crazy for real.
The idea is that you can move a bridge of this weight into position with no inconvenience is absurd.
These days I think the management gurus and project managers overrule the engineers, mathematicians and physicists.
As usual fools rush in and others die. The word accident is often misused - this was abject negligence.
Madness.
"Good Things No Cheap & Cheap things
No Good" . There is going to be hopefully a thorough Enquiry regarding
this matter , and a lot of Lawsuits
flying around .
Banana republics start as high as Virginia.
In reply to camos
I have always had a problem with this Banana republic title. Every one of them was a US puppet or better still a puppet for the US banana companies.
In reply to JayMor
There are regulations and codes everywhere unfortunately the penalties are so meagre they do not provide a deterrent its more beneficial to take the risk of cutting corners ------in the event something goes wrong you pay the fine and still come out ahead --- its like the old days of the pinto cars it was cheaper to pay death benefits caused by the car defects than make the cars safe --- Ralph Nader for all his quirks did do some real good to change that and make cars safer
In reply to birdseye
Bridge designer left state voice mail about cracks days before FIU bridge collapsed
It went unheard for three days.
It was uncertain if those cracks, observed at the north end of the 950-ton structure, contributed to the catastrophic collapse on Thursday. The National Transportation Safety Board, when questioned about the cracking on Friday night during a briefing on the campus, stressed caution and said they were looking into a range of possible causes.
A crack in the bridge does not necessarily mean its unsafe, lead NTSB investigator Robert Accetta said.
In reply to Chrissy
Several things could have gone wrong, including both unanticipated and anticipated. It is the latter that will cause heads to roll.
The unanticipated: new construction material (titanium dioxide). There isn't much experience out there about its performance in a full size structure, during transportation, installation and post-installation. Hence, the stress testing was quite in order. Stress testing is required ever for bridges made of traditional materials, using traditional construction methods.
The anticipated: bridges could fail (and have failed), catastrophically, during stress testing. The risk of failure is much higher with a "first of its kind" structure. Live traffic should not have been allowed under the bridge during the stress testing.
Apparently, some of the post-tensioning cables through the bridge deck started losing tension during the stress testing. At that point it should have been obvious that catastrophic failure was imminent, because this tension carries the loads above the weight of the structure itself.
The fact that the workers were told to re-tension the cables shows that there was still a bit of time to stop traffic below. The whole point of the stress testing is to uncover defects in design or construction. Until it is successfully completed, it should have been assumed that the bridge could have failed catastrophically under load, including during the stress test.
Even if the design or materials were defective, the contractor could have avoided this catastrophe, and will take most of the blame here for the loss of life and property damage, if not all.
Other issues: a 40-foot-wide pedestrian bridge seems quite unnecessary. They are usually about 8 to 12 feet wide - to facilitate construction (!) and keep down costs The $11M price tag seems exorbitant, even for a 40-foot-wide structure. (Note the weight: 940 or so tons. This translates to about 400+ cubic yards of normal concrete, which costs about $500 to $1000 a cubic yard installed.)
The choice of size, novel materials, etc, for a bridge to be placed over live traffic was not a smart one. This was further compounded by the poor construction decision to stress test over live traffic.
In reply to Norm
Yep - good post bro
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