Like the original world trade centre, what’s so special about building them this way and how does it keep all the weight up?
In: Engineering
The idea is that, rather than evenly distributing the support columns, you concentrate them in one ring around the outside, and one ring in the middle. [The benefit of this is that you get a lot of space that’s not interrupted by walls or columns.](https://i.ytimg.com/vi/cVeP5jgw3WE/maxresdefault.jpg)
With all that space between the supports, you can’t build the sturdiest floors, but you don’t need very sturdy floors for office space.
How do they work in what sense? The core basically carries most of the weight of the floors which eliminates/reduces the need for walls elsewhere, that in turn opens up the space to match current open space requirements/enables you to have (almost) uninterrupted window walls etc. It’s not necessarily just cantilevered from the core, you might have a steel skeleton around it too/ but the weight is borne by the middle of the building, not the outer perimeter.
They sometimes carry a massive ball of steel in one of the top floors to compensate winds and vibrations.
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