How deep are skyscrapers in the ground?
How deep are skyscrapers anchored to the ground? Compared to their overall height? Are there international regulations for this?
(1 rating, 1 votes, rated)You need to be a registered member to rate this.
Loading...
Yes, and they are definitely deep enough for the foundations to support the weight of the building.
This depends on:
I once read somewhere that the foundations of old gems like the Empire State Building are usually half as deep as the building's height. But I think, given technological advances, that's no longer state of the art and was probably just a rule of thumb even back then.
Greetings, Anna
There are no international regulations. It also largely depends on the construction of the skyscraper itself and the load-bearing capacity of the subsoil.
The foundation depth has nothing to do with the height. Given suitable soil conditions, these buildings could also be built at ground level, meaning the bottom edge of the foundation equals the ground surface. This is then all a matter of structural calculations, not regulations.
That depends on the surface.
If it is rocky, like in Manhattan, then a few meters are enough.
If it is sandy, a completely different foundation is necessary:
The Burj Khalifa tower rests on a 7,000 m² foundation supported by 200 concrete piles, each 1.5 m in diameter and 50 m deep . The 650 0.9 m diameter pedestal piles for the wings extend 36 m deep. 45,000 m³ of concrete were used for the foundation and floor slab.
Source: Google.de
Deep to very deep.