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gwideman (Computer) said:This is Tomfh's animated GIF from 18 Mar 18 02:49 (Part I), but I've sped it up and looped it.
The faster frame rate and looping allows us to make better use of our visual system to see continuity of action.
(All are cautioned that this is still just 7 frames of fuzzy zoomed dashcam video, albeit with Tomfh's "dolly zoom" enhancement).
Half-size version below, full size version is in the attachments. (A bit overpowering to post in line, I thought.)
LittleInch said:did the rod break or not
LittleInch said:I'm not actually sure now where this post has left to go until new information is released by the NTSB. I think by now all reasonable theories and conjectures have been aired and we probably all have slightly different views on which is the most likely, but with so much missing critical information (e.g. reinforcement details, were they loosening or tightening the PT rod at the time of collapse, did the rod break or not, whether there were construction changes from the drawings, where was the crack, was there a cold joint, is there a block of concrete in the canal etc etc) I think we're in danger of just recycling and endlessly looping around.
chris snyder said:chris snyder (Electrical)
Been there a while, but just listened to this from Tony Pipitone.
Said they were tightening #11 when it failed, and that WORK was being done, not a 'stress test' (~3:30-4:40), among other things.
saikee119 (Structural) said:I think we can conclude none of the rods broke because
(1) NTSB news release last paragraph confirms south side all PT rod completed. North side one PT rod done and workmen were adjusting the second rod when the failure occurred.
We now know the last rod worked on still had a jack attached after collapse and it was the bottom one of No.11.
(2) NTSB B-Roll video clip shows the bent threaded PT rod, how it rip out the concrete and broke the shear links in No. 11
bimr said:Would you loop the slow motion version that is posted on youtube?