5 ms·
From the diagrams included in that link, it looks like there's going to be a real problem if "the big one" happens during severe gusting winds.
by smoyer 9y ago
From the diagrams included in that link, it looks like there's going to be a real problem if "the big one" happens during severe gusting winds.
- onion2k 9y agoEven if that isn't the case, the Millennium Tower is literally across the road[1] and could fall in the wrong direction considering "Millennium Tower has sunk almost a foot and a half and is leaning 14 inches toward neighboring high rises" [1] https://www.google.co.uk/maps/place/Millennium+Tower+San+Francisco/@37.7875068,-122.3972696,529a,35y,39.33t/data=!3m1!1e3!4m5!3m4!1s0x0:0x9fe15ebd4a8300d8!8m2!3d37.7905055!4d-122.3962516 https://www.google.co.uk/maps/place/Millennium+Tower+San+Fra...
- jandrese 9y agoIs 14" of lean a lot on a high rise? Certainly that is a small fraction of a degree of total lean. The sinking does seem like a concern and is no doubt related. It seems like someone underestimated how much foundation work would be needed on that building. How does the front door work? Do they have steps down into the lobby now?
- matte_black 9y agoHow many inches of lean can a building support before it just falls over WTC style?
- IAmEveryone 9y agoI this "lean" is measured at the top, and the buildings weight is equally distributed from top to bottom (i.e. its centre of gravity is right in the middle) it can lean half its radius until the CoG is no longer above its support and it should topple. That's very rough of course. Many bad things could happen much earlier, such as unexpected forces causing structural damage. Note also that the WTC didn't exactly "fall over". It collapsed on itself.
- onion2k 9y agoA really long way. The center of mass has to move past the edge of the base for something to fall over. I can't find how big the Millennium Tower is to work it out, but I'd guess at least 30 feet.
- baud147258 9y ago> at least 30 feet [of lean] I'm pretty sure the building would have lost structural integrity from the force applied by gravity before the lean can reach 30 feet.
- antognini 9y agoThe lean of the leaning tower of Pisa is nearly 13 feet. The millennium building is over three times taller than that.
- Camillo 9y ago> before it just falls over WTC style? The WTC did not fall over.