Not the smartest thing I've heard from a relatively very senior structural engineer... [UPDATED]

Talking to a group of wind engineers, a structural engineer with years of experience in structural design said:
"Can't you people reduce the wind loads? The columns on core walls in our 400-meter tall or higher buildings are 1.5 meters thick wide. These are too big."*
I've said it before, but I'll say it again: experience does not equal expertise.

* Note: This is not a verbatim quote.


sarcelp@yahoo.com said...

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.

ronjiedotcom said...

Hmmm. Oops, I think he was referring to corewall thickness, and not column width. I updated the post. Thanks for reading and commenting!

Kirk said...

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.

ronjiedotcom said...

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.