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re: San Francisco's Millennium Tower is leaning, sinking and now cracking

Posted on 9/6/18 at 1:57 pm to
Posted by Croacka
Denham Springs
Member since Dec 2008
61451 posts
Posted on 9/6/18 at 1:57 pm to
quote:

I'd think you would have more than 1 window cracked if it was from pressure because of the building leaning.



Well some window has to be the first window to break
Posted by TigerstuckinMS
Member since Nov 2005
33687 posts
Posted on 9/6/18 at 3:12 pm to
Posted by Dr RC
The Money Pit
Member since Aug 2011
61604 posts
Posted on 9/6/18 at 3:18 pm to
quote:

we we talking gen Z here?


Yes but most of the dipshits on this site dont realize they are actually millennials which in a weird way proves them correct when they say millennials suck.
Posted by CivilTiger83
Member since Dec 2017
2525 posts
Posted on 9/6/18 at 3:45 pm to
quote:

Assuming the bedrock is just as deep at this site, they built a very heavy building on top of piles that were not driven to refusal at bedrock depth. They're relying on sand. I'm no structural engineer, but with the weight of the tower bearing down on the soil like that, you have to wonder what the thought process was here.


I'm not a geotechnical engineer (stormwater-civil), but it seems like they were penny wise and pound foolish. This is also an earthquake zone... liquefaction can occur with earthquakes where the bearing capacity of most soils goes to pot. It could easily cause a building like this to collapse. Somebody is about to get a lawsuit if they haven't already.
Posted by Clames
Member since Oct 2010
19956 posts
Posted on 9/6/18 at 4:15 pm to
quote:


Reading be hard.


Posted by boxcarbarney
Above all things, be a man
Member since Jul 2007
27245 posts
Posted on 9/6/18 at 7:12 pm to
quote:

This is also an earthquake zone... liquefaction can occur with earthquakes where the bearing capacity of most soils goes to pot


That's what I was thinking. Unless this sand holds some special property we're not aware of.
This post was edited on 9/7/18 at 9:43 am
Posted by Martini
Near Athens
Member since Mar 2005
49696 posts
Posted on 9/6/18 at 7:16 pm to
quote:

No way it's a slab-on-grade. Very deep piles, I would assume.



The piles did not go to bedrock. This is a main reason it is leaning.
Posted by shamrock
Baton Rouge
Member since Sep 2015
4157 posts
Posted on 9/6/18 at 7:19 pm to
Yep, good piece on 60 min about it..plus the neighboring construction doesn’t help
Posted by BHM
Member since Jun 2012
4109 posts
Posted on 9/6/18 at 7:43 pm to
California. High tech software companies everywhere.

Department of Building Inspection still handwriting inspection forms.

Posted by BeepNode
Lafayette
Member since Feb 2014
10005 posts
Posted on 9/6/18 at 8:01 pm to
quote:

Probably need to add another thousand building code regulations to the San Francisco code


I probably wouldn't blame them if they required going all the way down to bedrock for buildings over a certain size, from here out.
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