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  1. Sym P. le

    Champlain Towers NIST Update 4/11/25

    Thanks for posting the update. At this point the updates are a bit of a dog and pony show but it's good that they are being thorough. They are still trying to assess if a column buckled under the tower as an initiating event ... but then they go back to the obvious planter/column 76 event...
  2. Sym P. le

    Dominican Republic Nigh Club Roof Collapse

    ... lest anyone believe that buildings just fall down, critical evidence from an employee warning of a potential collapse sealed the indictment. Jet Set owners charged with involuntary homicide after deadly roof collapse (Global News) Attached is a report from a Dominican engineer, dated April...
  3. Sym P. le

    Air India 787 crashes on take off

    Landing gear retraction was initiated. As explained by Greg's Airplanes and Automobiles, the retraction sequence tilts the main gear forward prior to lateral movement into the stowed position. Video footage clearly shows the main gear in the forward tilt orientation. The full retraction...
  4. Sym P. le

    Air India 787 crashes on take off

    This disaster is crying out for more information. Hopefully soon.
  5. Sym P. le

    Air India 787 crashes on take off

    Whoopsies ... Aviation expert urges airlines to stop hiring pilots who ‘aren’t qualified’ after Air India
  6. Sym P. le

    Cabagan–Santa Maria Bridge collapse

    Bridge construction began in 2014 while a retrofit was completed in February. ---> Youtube The dump truck full of rocks might have been close to 100 tons, no?
  7. Sym P. le

    Cabagan–Santa Maria Bridge collapse

    What I was looking at in the first screenshot was the strapping around the concrete arch. This is obviously a retrofit given the clean arches seen on Google Maps. Was the hangar connection failing already. Was the top connection of the vertical member connected with four bolts like the lower...
  8. Sym P. le

    Cabagan–Santa Maria Bridge collapse

    Apparently structural deficiencies were at play given remedial work evident in images. Youtube Google Maps
  9. Sym P. le

    Mexican navy tall ship slams into Brooklyn Bridge

    There's something very wrong with that scene. The ship was moving backwards and towards the immediate shoreline with the tug in chase. Unfortunately the bridge got in the way. The ship then glanced off the shoreline just after it passed the bridge.
  10. Sym P. le

    Clearwater condo evacuated

    I suppose I can answer my own question --> As they pulled up the cut up slab sections, they disturbed the column, which was integrated with that last piece of slab which extended beneath, or stuck to the column. The column likely fractured in quick order, then slowly progressed as the...
  11. Sym P. le

    Clearwater condo evacuated

    It looks to me that the column base was destabilized by removing the slab. I'm not sure what precautions should have been taken to avoid that. I don't see the footing either.
  12. Sym P. le

    Clearwater condo evacuated

    Plenty? Oh, I missed that one. Is it possible that by removing the slab at the base of the column, the effective six inch (or so) increase in column height tipped it over the edge? Answer: no, they couldn't cut right up against the column ... although on the thin side that cleaved off it...
  13. Sym P. le

    Clearwater condo evacuated

    So if the containment rebar is missing from that column, where else is it missing? What were they working on/with above the column to completely obliterate it. This story is much bigger than we know.
  14. Sym P. le

    Clearwater condo evacuated

    It sounds as though they were doing some remedial work and got ahead of themselves. There is stuff missing from this story.
  15. Sym P. le

    April 2023 Manhattan Garage Collapse Followup

    If it wasn't so serious I would laugh at the structural/facia brick differential and the idea that the facia layer can be removed with impunity. I'm not saying that was the case here but by extension, uniformed removal of any course of multi-wythed brickwork is inane.
  16. Sym P. le

    Thailand/Myanmar Earthquake: VIDEO Dramatic collapse of a high rise in Bankok

    The thin wall theory plays nicely into the out of phase oscillation theory (with the west adjoining bridge structue). A thin wall offers less resistance to lateral forces and can bow or fatigue easier, or rebar pullout can leave a much smaller percentage remaining to support the vertical load...
  17. Sym P. le

    Thailand/Myanmar Earthquake: VIDEO Dramatic collapse of a high rise in Bankok

    From the article Yeah, that might make a difference. Corruption can often result in such frivolities.
  18. Sym P. le

    Helicopter crash Hudson River

    I think there's a little more to it than that. rotational torque
  19. Sym P. le

    Helicopter crash Hudson River

    Sorry waross, I can't put my head in a bag.
  20. Sym P. le

    Helicopter crash Hudson River

    A hard landing can cause a boom strike as can a narrow set of in flight conditions, none of which make it a go to theory as an initiator for this incident. I don't need to wait for a certified gov report before I start to familiarize myself with publically available information and I hope...

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