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Posted on 11/29/17 at 2:19 pm to Huddie Leadbetter
If you are taking about high rise building you use a total station to check your plumb. I taught a few guys how to use one.
My friend is a commercial window contractor and he borrows my total station a lot. Only benefit I get out of it is he gets it calibrated before his jobs.
My friend is a commercial window contractor and he borrows my total station a lot. Only benefit I get out of it is he gets it calibrated before his jobs.
Posted on 11/29/17 at 2:24 pm to Huddie Leadbetter
Apparently not very well, read about San Francisco's leaning tower. Actually it was not built on a adequate foundation, and one side is sinking.
LINK
LINK
Posted on 11/29/17 at 2:36 pm to Huddie Leadbetter
Plumb bob, same way the Egyptians, Romans and Greeks did it.
Posted on 11/29/17 at 2:38 pm to Perrydawg
quote:
most high rises have some degree of deflection and movement to allow for high winds so plumb will not be perfect.
Its called lateral drift, and it is specified in ASCE 7, Table 12.12-1. There are different allowable drifts depending on the type of building (masonry shear walls, steel bracing, etc), risk category, and height of each.
Posted on 11/29/17 at 2:39 pm to Huddie Leadbetter
Up^^^
Posted on 11/29/17 at 2:39 pm to EA6B
quote:
Actually it was not built on a adequate foundation, and one side is sinking.
They were a little aggressive in their allowable pile friction calc, and it didnt work out for them.
Eta-skin friction piles vs end bearing
This post was edited on 11/29/17 at 2:50 pm
Posted on 11/29/17 at 2:39 pm to Huddie Leadbetter
quote:
How are exterior walls on a high rise building kept plumb?
Nikon Total Station lined up to a prism pole on the beam side every time they pour a floor.
Posted on 2/26/20 at 8:51 am to Huddie Leadbetter
That old State Insurance Bldg. that was just east of the capitol was something else.Every time the elevator was in use the entire bldg. would vibrate. It was eventually demoed.
Posted on 2/26/20 at 8:56 am to Huddie Leadbetter
Shouldn’t you have asked this before you started work on the Hard Rock?
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