Quote:
Originally Posted by chex
and i think the square we see is begining to form on the steel work is the cascade for one of these??
and maybe a question many had made, but i havent found what it is, the steel frame they are building on the core??? its not part of the core is it? the core is all concrete..?
nice pix..
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Nothing is all concrete. The frame will distribute the load from whatever it's attached to differently. It will also make the cores more shear resistant than regular reinforcing steel where it needs it most, and is probably be to brace the cores to each other without having to pour them as a single unit. You really don't want two cores that high and thin flexing independently.
By placing the connections between cores you can break up resonances and have a lighter, more sway resistant structure than a single monolithic core.