Stacking the floors has the added advantage of putting plumbing in line from one floor to the next, and the sharing of walls/ceilings/floors reduces cost.

After a certain height, you have issues with moving people up and down the building, and pumping water to the higher floors can’t be done without supplemental equipment. The higher the building, the more you have to consider things like wind resistance, sway, and other issues.

It is difficult to bring water several stories high. Emergency exits are not as reliable because of the height factor. They block the beauty of the skyline…such as a pretty sunset or rainbow. Small air craft must maneaver around them.

http:// library.thinkquest.org/ 04apr/00452/ function-materials.htm

http://www. suberic.net/~avon/ mxphysics/ walter%20and%20hunter/ web.htm

http://www. mimarist.org/mimarist/ index.cfm?sayfa= bulten&ChapterID= 168&MID=172

Best wishes to you!