"Can't you people reduce the wind loads? TheI've said it before, but I'll say it again: experience does not equal expertise.columns oncore walls in our 400-meter tall or higher buildings are 1.5 meters thickwide. These are too big."*
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* Note: This is not a verbatim quote.
4 comments:
But highrise buildings typically use corewall stability for windloads.
So column size shouldn't be affected, unless he's using moment frames which is a very poor solution.
Hmmm. Oops, I think he was referring to corewall thickness, and not column width. I updated the post. Thanks for reading and commenting!
the engineer might have some point 1.5m THK core wall might be too much for 400m high building. the burj khalifa which is 808m high uses only a maximum core wall thickness of 1.3m but of course another factor is the shape of the building to reduce wind effect.
Thanks for that insight! That's also a good point, that the shape has an effect on the wind loads. My point, too, was that we can't just "reduce the wind loads" -- but indeed there are some structural and aerodynamic modifications, and a few other more detailed studies, that can be considered to reduce the wind loads and effectively reduce core wall thicknesses. That engineer didn't give any specifics but he could have been referring only to a certain building shape with high aerodynamic coefficients.
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