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  1. Red Corona

    My question is that accepted Temp S

    Wood is fine for this kind of load, look at all the wooden truss railway bridges in North America. Particularly as the concrete pillars are actually able to bear the load themselves (since the bridge hasn't fallen down since the fire), so this is more about adding some redundancy and safety...
  2. Red Corona

    Fire shuts down I10 in LA

    There will be speculation about how and who started the fire, but the primary problem here seems to be permitting the stacking of large amounts of flammable material underneath critical infrastructure. If it was a building it would be against fire regulations to not have any fire suppression for...
  3. Red Corona

    Another tower leaning in Italy?

    Apparently it's been leaning considerably since the 14th century. If they're worried about the tilt increasing or vibrations from modern road traffic making that happen, then they should certainly measure it and be prepared to intervene, but modern building engineering would easily be up to...
  4. Red Corona

    We've had murder cars, now we've got murder-trains in Florida of course

    That was a mainline express, not a commuter train. However, your point is mostly still valid. I don't understand why tracks in built up areas aren't fenced, tbh. These incidents are all happening within urban or suburban areas, not in some cornfield 100 miles from anywhere.
  5. Red Corona

    We've had murder cars, now we've got murder-trains in Florida of course

    Genuine "high speed trains" (TGV/ICE/etc) running at full speed don't. But Brightline isn't that. Mainline trains running at 100mph or more can have level crossings, at least here in the UK. They are all fenced though, at least in built up areas, you can't just wander onto the tracks without...
  6. Red Corona

    Parking garage collapses at Ascension St. Vincent’s Riverside

    It isn't clear how that beam is even supposed to be attached to the columns, to prevent it falling outwards as it appears to have done.
  7. Red Corona

    Tourist submersible visiting the Titanic is missing Part 2

    I think that's very likely given that, as you say, he was on board himself
  8. Red Corona

    Apartment Building Collapse

    The sequel is now out: https://www.youtube.com/watch?v=ydjZ7J3-JuQ It's quite a good watch, the tl;dw seems pretty simple to me though: the people planning and executing the "fix" in Feb this year did not understand that the brick wall was load bearing, the "fix" did not adequately replace the...
  9. Red Corona

    Bridge failure near Albany NY

    A pretty reasonable suggestion that the bridge is intended to be essentially a reinforced concrete bridge with a decorative girder, and they forgot that before the concrete sets it is just a dead weight and the girder needs to be able to take that load. I can't see how anyone would imagine that...
  10. Red Corona

    Miami Beach, Champlain Towers South apartment building collapse, Part 17

    There is some new information there. Thanks for the link Maud. We should be careful about taking statements that may have been given some time after the event as being accurate in every detail, however: - 611 did turn off her light, that explains that. Still no-one's asked her which wall the...
  11. Red Corona

    Miami Beach, Champlain Towers South apartment building collapse, Part 17

    My understanding (from the video walkthrough of the garage the year before, and various Youtubers who've visited CTN since the collapse) is that the garage was normally lit, and so the lights being out because of a deck collapse would be even more noticeable. The deck could have started punching...
  12. Red Corona

    Miami Beach, Champlain Towers South apartment building collapse, Part 17

    > @FJB However, if their parking spot was say in North East Corner near the East Stair Tower and I lived on first floor, I for one would take the stairs as the shortest direct path to my apartment/condo I think this was answered already, but I was talking about the Vazquezes (apologies if that...
  13. Red Corona

    Miami Beach, Champlain Towers South apartment building collapse, Part 17

    It's clear from the reports of noise that there was something structural at 01.10. It doesn't appear to have been a collapse visible in the garage though. So I would say it's more likely to be internal structural failure in the deck than an actual collapse. Perhaps the deck starting to punch at...
  14. Red Corona

    Tesla "autopilot" disengages shortly before impact

    Giving up control seconds before a serious unexpected collision is just not safe at all, if that's the system behaviour then (even if it isn't a deliberate attempt to dodge liability) it should not be legal on the public roads.
  15. Red Corona

    Miami Beach, Champlain Towers South apartment building collapse, Part 17

    > sorry if this has been mentioned, but the higher resolution image solves the disappearing penthouse mystery. The apartment with the light on (1110 I think) tore open and the apartment and roof above it didn't drop until a split second later Yes. I was one of the people that was asking that...
  16. Red Corona

    Miami Beach, Champlain Towers South apartment building collapse, Part 16

    Yes, that planter (in the June '21 pic) has definitely fallen down to the south and east, not just south. Most likely interpretation for me is that the punchout is beginning to happen around column 76 (that's I14.1 right?), not so much around the one under that planter, and it progressed to...
  17. Red Corona

    Miami Beach, Champlain Towers South apartment building collapse, Part 16

    Roots add extra material, you can create cracks by root infiltration and growth but you'd expect them to push the structure up and out, not down. I can't see any way in which the planter being lower than it originally was could be caused by roots. Edit: watched the BI video now, and he also...
  18. Red Corona

    Miami Beach, Champlain Towers South apartment building collapse, Part 16

    > The punch out failure in this situation is unconventional - /-\ as opposed to \_/. Yes, I mentioned this several threads back and said I would put some reasoning into what that might mean, but I never got around to it, did I? Amazing that this pic has just come out now. It seems to clearly...
  19. Red Corona

    60-car pile-up on I-81 in Pennsylvania during a fog and snow storm...

    Fog lights are a good idea to be sure. But the visibility in this video isn't even that bad. It's not a mechanical or equipment problem, it's an idiot driver problem, people continuing to drive at speeds that mean they can't stop within the distance they can see with the condition of the road.
  20. Red Corona

    Whitechapel London Building Fire

    Indeed not, it's some sort of internal fire. There will be an investigation of how the sprinklers and fire doors that are presumably inside that building failed, I guess. But the biggest thing for me in that report is "the building is being evacuated" - no Grenfell "stay in your flat to get...

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