huangyhg

pouring concrete against steel column
can anyone provide guidance in the form of a detail, or description of the best way to pour an elevated slab against a steel column? is a piece of joint material between the two sufficient for expansion, should there be joints around the area for cracking?
"saving the world one beam at a time"
not sure to what type of system you are reffering to for the elevated slab, but for a composite steel beam/composite steel deck (with concrete fill) system i have never done anything special around the column. usually the concrete fill is just placed up against the steel column.
have never noticed any problems with cracking around the column.
if you are reffering to a different system for the elevated slab, i apologize for my misunderstanding of the question.

if slab on grade, i would suggest: pouring tight to column with an isloated blockout and joint material (could be diamond, round or pinwheel depending upon preference).
if elevated slab, i would suggest: pouring tight to column and reinforced with a pair of bars on each side of column.

consult aci 302.1r-04, "guide for concrete floor and slab construction". you should find what you are looking for. specifically, try pages 9-11. if you don't have access to this guide you can still view it on google books.

__________________
借用达朗贝尔的名言：前进吧，你会得到信心!
[url="http://www.dimcax.com"]几何尺寸与公差标准[/url]