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Message
re: New Library building downtown may be collapsing
Posted on 4/19/18 at 9:16 am to 4LSU2
Posted on 4/19/18 at 9:16 am to 4LSU2
quote:any building of that size anywhere in the country, would not rely on shallow foundations. They will have some type of pile from drilled shafts, to augercast to driven.
’m sure they have auger cast pilings there that close to the river around BR.
3
Posted on 4/19/18 at 9:37 am to CP3
quote:
First responders are on the scene of the new downtown library, currently under construction, amid reports of instability within the building's structure.
Posted on 4/19/18 at 9:44 am to CarRamrod
quote:
any building of that size anywhere in the country, would not rely on shallow foundations. They will have some type of pile from drilled shafts, to augercast to driven.
Just thinking out loud. There is a good chance that these piles or shafts were founded into a sand layer. That's a pretty standard practice when sand is present. Could this sand layer have been compromised by seepage due to the high river level?
I'm not saying it is an excuse for what has happened and it should have been accounted for in the design, but that condition was probably not obvious or the typical condition to design for, especially if the geotech or foundation designer happened to not be that familiar with the specific location.
Posted on 4/19/18 at 9:50 am to CP3
Lol
This post was edited on 4/19/18 at 9:50 am
Posted on 4/19/18 at 9:50 am to Boudreaux35
they will inject grout into the soils supporting the deep foundations, level up, and move on. this is much ado about nothing
Posted on 4/19/18 at 9:50 am to rondo
quote:
they didn't take into account the weight of the books!
I am disappointed in the OT that this wasn't posted sooner.
Signed,
Ted Mosby, architect
Posted on 4/19/18 at 9:55 am to Boudreaux35
quote:i wouldnt think so. especially with all the other building around, if that sand layer was compromised you should be seeing affects other places. I would like to see their borings thought.
Just thinking out loud. There is a good chance that these piles or shafts were founded into a sand layer. That's a pretty standard practice when sand is present. Could this sand layer have been compromised by seepage due to the high river level?
One think i always do in my projects is look at the proposed borings the geotech recommended and push him to double them.
Posted on 4/19/18 at 9:58 am to Unobtanium
quote:i saw a case study that that has happened before a long time ago. the Live load on a library are different than regular buildings.
they didn't take into account the weight of the books!
I am disappointed in the OT that this wasn't posted sooner.
Posted on 4/19/18 at 10:02 am to Boudreaux35
quote:
Even if you had performed the design of it? Damn, sounds like you have little confidence in yourself. Guess your structures would be all simple columns and square frames.
Yea because if it works on paper it always works in the field.
Posted on 4/19/18 at 10:03 am to PhiTiger1764
quote:Do you even Engineer bro?
Yea because if it works on paper it always works in the field.
Posted on 4/19/18 at 10:05 am to CarRamrod
quote:quote:quote:
they didn't take into account the weight of the books!
I am disappointed in the OT that this wasn't posted sooner.
i saw a case study that that has happened before a long time ago.
Snopes says this is all urban legend. Regardless, there were no books in the downtown library yet.
Posted on 4/19/18 at 10:05 am to CP3
Probably from all of the holes being cut in the men's room stalls.
Posted on 4/19/18 at 10:08 am to harro
quote:
I can guarantee the engineer's attorney's a-hole is not puckered right now. In fact, he just ordered a case of lube to make it easier on his client.
yeah why would the attorney be puckered? he/she is about to BANK
Posted on 4/19/18 at 10:08 am to PhiTiger1764
quote:
Yea because if it works on paper it always works in the field.
Just that statement convinces me I would not want to work with you.
Posted on 4/19/18 at 10:10 am to LSUBoo
quote:
Snopes says this is all urban legend. Regardless, there were no books in the downtown library yet.
well snopes is wrong quote:an architect wouldn't care about the weight of the books anyway thats the engineers job.
A famed college library is sinking into the ground because its architect failed to take the weight of the books into account.
Posted on 4/19/18 at 10:16 am to SlowFlowPro
quote:
yeah why would the attorney be puckered? he/she is about to BANK
Because attorneys are assholes. They're ALWAYS puckered.
This post was edited on 4/19/18 at 10:17 am
Posted on 4/19/18 at 10:19 am to cgrand
quote:
they will inject grout into the soils supporting the deep foundations, level up, and move on. this is much ado about nothing
I saw how they did this with the Leaning Tower of Pisa. Very cool.
Posted on 4/19/18 at 10:19 am to Boudreaux35
ok guyPosted on 4/19/18 at 10:21 am to CarRamrod
quote:
any building of that size anywhere in the country, would not rely on shallow foundations. They will have some type of pile from drilled shafts, to augercast to driven.
Do they find a sand lens to set these pilings on?
Posted on 4/19/18 at 10:25 am to upgrayedd
quote:im assuming you mean "layers" Sand layers are very stiff and it is good to punch through a sand layer. But if the sand layer is shallow it will be ignored.
Do they find a sand lens to set these pilings on?
In the south you are mostly relying on skin friction where as when you get into more dense soil layers of other areas of the country you design for end bearing.
It is funny when im doing stuff in California i see bearing pressures of 16ksf and the geotech says this is really weak "rock" and im rejoicing cause im use to seeing a bearing pressure of 200-600psf.
This post was edited on 4/19/18 at 10:30 am
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