• Treczoks@lemmy.world
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      4 days ago

      Looks like it. One set of pillars seems to be gone (the bridge in the front) dropping two segments, and the foundation of the pillar on the rear bridge has seriously moved around - you can see that the pillar is anything but straight, causing one segment to fall.

      So either the foundation was not set deep enough, or the pillars broke just above the foundation. And for some reason, the segments were just placed on top of the pillars and not connected to each other by steel cables running the full lenght of the bridge.

      • Evil_Shrubbery@lemm.ee
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        4 days ago

        Steel wires in the same plane (ie horizontal anchoring) as the horizontal segments could hold up even a single segment?

        I wasn’t aware they are there, how are they called so I can learn more?
        I’ve had a quick look at some schematics & didn’t find anything.
        Also afaik tensioned steel wires (prob not just on bridges) arent allowed to be hidden (at least in Europe) to allow for inspection.

        • Treczoks@lemmy.world
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          4 days ago

          Well, they seem to exist. I recalling a news article where a pylon of a bridge broke, and the segments were held together by such a cable. It didn’t leave a usable bridge, but at least nothing big and more important nobody fell down.

          And whether they were hidden or not, I cannot give you an answer, but I think they could be accessible in the innards of the segments corpus, which in turn must be accessible anyway for inspection.

          • Evil_Shrubbery@lemm.ee
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            4 days ago

            Was it a proper viaduct like this one (tho this is a medium one, with roadways separated completely into two “bridges”) or a much smaller one?

            I’ll look into it when I have more time.
            (Tho the more I think about it the more I see a structurally unsound cable connecting the top pieces as a liability - it could be the cause for the collapse of the whole bridge instead of just the two sections in one & three on the order bridge … and if it could support the road then why not just beef up the cable & not use supports? … it might just not be possible)

  • Lenny@lemmy.zip
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    4 days ago

    Translation

    Driver: Call the police, call the fire dept., call everybody!

    Guy: You’re in Guangzhou Bay; here we call the Paw Patrol!

  • Evil_Shrubbery@lemm.ee
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    4 days ago

    The bridge was closed (by a mere) 30 minutes before the partial collapse, that’s why there were no casualties. Not sure why was the red truck there.

    chinadaily.com.cn/a/202506/25/WS685b4ef3a310a04af22c84eb.html

    A section of a bridge on the Xiamen-Chengdu Expressway in Guizhou province collapsed on Tuesday morning following a landslide brought on by prolonged heavy rainfall. No casualties have been reported.

    The collapse occurred at about 7:40 am in Sandu county as a truck was crossing the bridge. The driver was rescued by emergency teams, according to local authorities.

    Highway patrol officers first observed structural deformation on the bridge as early as 5:51 am and imposed one-way traffic control. A full closure in both directions was implemented by 7:11 am, less than 30 minutes before a portion of the bridge gave way.

    An investigation is underway to determine the exact cause of the collapse.

    Drone footage:
    youtube/qO4odVoxkM8

  • Nastybutler@lemmy.world
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    4 days ago

    Don’t think I’d just be calmly sitting at the open door. I’d probably be curled up on the floor wishing I hadn’t shit my pants

  • GluWu@lemm.ee
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    4 days ago

    This is AI. China builds the biggerest strongest bridges. Nobody builds bridges better than China. China has the biggest most beautiful bridges. The world is jealous of chinas beautiful bridges. Only amerikkkan bridges collapse.

    /s