How does the height of each floor affect the support structure of a high-rise building?

Question

What if each floor is double the height of a normal floor? So you have a 10 storey building that is as tall as a 20 storey building. Will your supports have to be stronger? Thicker? More closely spaced? Will the lateral support need to be stronger?

Answer 1

All elements will be the same with the exception of the lateral support to reduce the buckling force on the columns, and the extra effect of wind load due to the space between floors have increased

Answer 2

It is more like the World Trade building. The heat got to 2 or more floors . The 3rd floor can not support it. Like an avalanche it will all fall down.

Answer 3

Assuming everything else stays the same, the building will have to be LESS robust. The differece here is in the amount of floor-loadings. Imagine these two buildings are libraries with tons upon tons of books; Halving the floors will half this immense load, reducing strength requirements.

The effects of wind remains unchanged. Designers use the principal of superposition to pile additional loads. In this case the material loads and floor loadings are lessened, thereby lessening design requirements.

Also, Most new buildings ae supported through a central structure which also houses elevators, stairs, utilities etc. Because of this, floors only need support their own weight. The other answers here are a little off :) (politely)

Answer 4

Yes. Not Necessarily, Not Necessarily, Not Necessarily.

The columns would have to be designed to carry all loads regardless of story height.  The main factor  with heigth in a building would be wind loads.  Meaning a 10 story building that is the same height as a 20 story would have the same wind loads.