Originally Posted by Zerton
It's kind of a recent phenomenon in skyscrapers (if you're referring to the holes in the building that let air through). I don't really understand them when they aren't there for air power. It's not as though the building couldn't structurally take wind loads. I'm confused also.
For skyscrapers, the wind load is usually the critical load that influences the design the most. Anything that can reduce the wind load can reduce the required strength and thus cost, most effectively.