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03-16-2018, 03:34 PM | #67 |
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And that is a serious issue in my opinion and probably that of those part of the investigation. Why did it leave? Was it directed to leave? Who did that? Did they have the authority to remove a vital part in the upcoming investigation into the accident. No matter what that crane should still be sitting there in the exact spot and in the exact position it was in when the accident happened.
That's construction 101....although it seems a lot of that 101 course was not followed here. |
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03-16-2018, 03:35 PM | #68 |
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03-16-2018, 03:39 PM | #69 | |
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CouLd LEO wanted it out of area for rescue? Unknown. First responders trying to save lives first, not analyze scene. Posters in thread (and other internet sites) not aware of this crane before my posts. That’s how easy it was to miss the importance. |
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03-16-2018, 03:45 PM | #70 |
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03-16-2018, 03:52 PM | #71 | |
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The contractor/builder seems to have not understood that the first thing you build in such a design is the central tower/spine that the cables are hung from, as well as the end supports for the spans, the spans then grow, or installed from the tower outwards. The single tower has not even been built in the photos, so how people thing the cables were being tensioned or anything is beyond me as there is no tower there. I bet that large span unit was never designed to be a simply supported span under self weight, and I'm astonished any work is being carried out over a live roadway with no installed crash deck or other temporary works safety installation in place
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03-16-2018, 03:55 PM | #72 | |
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You are mistaken concrete barrier to stop water erosion as tower. It was to be poured and built in place in this opening. |
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03-16-2018, 03:57 PM | #73 | |
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Miami bridge collapsed as cables were being tightened following 'stress test' https://www.usatoday.com/story/news/...est/431392002/ |
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03-16-2018, 04:04 PM | #75 |
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I doubt that crane went anywhere but around a corner. Osha would not have that. It's funny to compare Tony's hot wheels crane to a 500 ton crane such as this. This accident was just pure ignorance. Idk why they would test anything with traffic coming through
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03-16-2018, 04:05 PM | #76 | |
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03-16-2018, 04:08 PM | #77 | |
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You think OSHA or NTSB was on scene in 5 minutes, 10 minutes, 30 minutes? And if Bridge was that fragile, it would have collapsed when moved into place. Now if crane had tension on it....and cable suddenly snapped. And video shows break happening right above where crane was attached.... Last edited by IK6SPEED; 03-16-2018 at 04:14 PM.. |
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03-16-2018, 04:16 PM | #78 |
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No shit sherlock......
That what I said. In a single tower cable stay bridge design, the tower has to be in place BEFORE the deck, as the cables that support the deck are connected to the top of the tower.
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03-16-2018, 04:27 PM | #79 | |
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However tower DOES NOT have to be in place before deck That was impossible using this globally accepted construction method. It is stronger building it into deck section as was being done. Again, Bridge was not a break if you sneeze piece, as witnessed by support during moving. If it were, it would have collapsed during move. Watch video and see where collapse started. Last edited by IK6SPEED; 03-16-2018 at 04:33 PM.. |
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03-16-2018, 07:52 PM | #80 |
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BREAKING | FDOT was warned about FIU bridge cracking two days before collapse - but didn't hear voicemail until today
Engineers for the pedestrian bridge at Florida International University warned state officials about cracking two days before Thursday's fatal collapse, but no one at the Florida Department of Transportation heard the voicemail until today, FDOT said Friday evening. Engineers also had a permit to close the road below the bridge, but never made the request, FDOT said. "The department was also not made aware by the FIU design build team of any scheduled 'Stress testing' of the bridge following installation and has no knowledge or confirmation from FIU's design build team of "stress testing" occurring since installation," FDOT said in a statement. "Per standard safety procedure, FDOT would issue a permit for partial or full road closure if deemed necessary and requested by the FIU design build team or FIU contracted construction inspector for structural testing." FDOT also released the transcript of a voice mail left on March 13 by W. Denney Pate, FIGG's lead engineer for the pedestrian bridge project, to an FDOT employee. The employee, who was out on assignment, didn't hear it until Friday. Here is the full transcript, as submitted by FDOT. "Hey Tom, this is Denney Pate with FIGG bridge engineers. Calling to, uh, share with you some information about the FIU pedestrian bridge and some cracking that's been observed on the north end of the span, the pylon end of that span we moved this weekend. Um, so, uh, we've taken a look at it and, uh, obviously some repairs or whatever will have to be done but from a safety perspective we don't see that there's any issue there so we're not concerned about it from that perspective although obviously the cracking is not good and something's going to have to be, ya know, done to repair that. At any rate, I wanted to chat with you about that because I suspect at some point that's gonna get to your desk. So, uh, at any rate, call me back when you can. Thank you. Bye." |
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03-16-2018, 08:01 PM | #81 | |
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Did you guys see this AvE video? Also kind of interesting. No real facts on what caused the failure... just interesting never the less...
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03-16-2018, 08:32 PM | #82 |
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This angers me.
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03-17-2018, 04:36 PM | #85 |
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You will notice at 14:45 in, he states he was wrong about where bridge broke...and confirmed it was exactly where I stated above and that he was incorrect - also what I said yesterday morning prior to videos....breaking directly blow crane cable.
Also note in post #32 yesterday morning, I put that picture up (it’s third one in post) showing point of failure immediate after collapse that he zooms in on (and reposted below) - even earlier than his CNN photo with workers on it. I obviously was not there but eyewitness account from vehicle that had not reached bridge yet described in detail that’s where it all came apart on Thursday afternoon (on Fox News of all places). As everything starting flying including cables attached to crane, I can see how the thought was cable broke. But then again, as it all came down, perhaps it also snapped crane’s cable as crane was not meant to support 950 tons. That could also explain why crane was not used in rescue and removed from scene. Regardless, as more facts come out, the point of failure has narrowed to the original area on bridge I was posting about yesterday morning, while others were questioning if crane was there or what I was talking about cables on bridge. Last edited by IK6SPEED; 03-17-2018 at 04:43 PM.. |
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03-17-2018, 04:51 PM | #86 |
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Dackelone
I would also make this point. As we now know, Construction was aware of cracking. I get that the cables were loose and they needed to be tightened. But as Construction Supervisors were aware of cracking, one would think there would have been long discussions about the safety attempting to compress the cement (as explained in video) with known fact that bridge was cracking. Perhaps they concluded this would help rigidity. Whatever, that is the where Investigators should get detailed accounts of people in that meeting before they had time to compare stories. |
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03-17-2018, 06:17 PM | #87 | ||
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It boggles the mind how many mistakes were made. AND why they just didn't close the street traffic down, when they KNEW there were stress cracks. In the traffic camera video... you can see the workers on top of the bridge doing "something", maybe tightening those cables - when the bridge collapsed. I also saw that the University was suppose to have a third party independent from the construction crew/engineers over seeing the build - but the Uni failed to hire any. I'm sure the lawyers will have a field day - many years down the road. Quote:
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