It sounds like the NYT reconstruction is based on an unreleased video. There was some security video already released though that doesn't seem to match the YouTube simulation above
* This analysis of security video that was posted by mdepablo on 21 Aug. seems to show the roadway falling well...
Here's a simulation by the NYT, supposedly based on not-yet-released video:
https://www.nytimes.com/interactive/2018/09/06/world/europe/genoa-italy-bridge.html
Different in many ways than the YouTube videos posted above - they have both southern stays breaking simultaneously, and a more clear...
FIU releases new video of the bridge collapse, from time-lapse cameras: https://www.miamiherald.com/news/local/community/miami-dade/article216703455.html
In case people didn't see this, NTSB released a 4 page preliminary report. That report confirms something important that had seemed an open question, that the PT rods in #2 and #11 were indeed de-tensioned on schedule on March 10 when the span was put into place. The activity taking place on...
chris snyder - Peter Dow's analysis seemed to assume that the work done on Mar 15th was the planned destressing. The reason I'm asking about the blisters is that if the blisters were first filled in, then opened again on the 15th, then the destressing had almost certainly already occurred. In...
Yes, 2 and 11 blisters were open during transport. My question is whether they were filled in (and then opened again) between March 10 when the span was set in place and March 15 when the bridge collapsed.
A question that has been in my mind, about the grouting of #2 and #11. It might be possible to see from the sequence of photos whether the work being done on the day of the failure was a late modification instead of the planned de-stressing.
The construction specifications say that the PT bars...
How much would the tower cost to demolish? If the piles are already more than the build cost, shouldn't people be thinking about starting over rather than incurring the risk that the attempted fix will not work as expected?
FYI, connection details in the construction plans are on pages 86 and 88 of the pdf (pages B-61 and B-63)and post-tensioning forces on p. 94 (page B-69).
For comparison, the original bridge proposal is at...
There is new information. FDOT has just released the bridge construction plans. They are at
https://cdn2.fdot.gov/fiu/13-Denney-Pate-signed-and-sealed-FIU-bridge-construction-plans.pdf
