Basement framing-thermal considerations
Basement framing-thermal considerations
(OP)
I am designing a steel framed building, approx 120'x215' in plan, with full basement, poured walls. In the past I have used pilasters in the basement walls to support exterior steel columns, which then obviously start at ground level. This results in interior beam lines framing into the pilasters (double angle connection welded to embed plate in pilaster).The only thing that bothers me is that the steel is subject to thermal movement during construction (midwest location) and may cause distress at the beam to pilaster connection. I am considering eliminating the pilasters and running the steel columns down to basement level, altho this is not quite as clean. Any thoughts would be appreciated. It seems like the longer I am in this business, the more things I find to worry about.






RE: Basement framing-thermal considerations
RE: Basement framing-thermal considerations
You refer to the difference in thermal expansion of concrete and steel, right? That's 15%.
Or is it the process that induces the thermal effects. Certainly a 500 degree difference effect would raise trouble with the supports. The foundries have troubles like this during shut down this time of year.
RE: Basement framing-thermal considerations
I really think you would have more of a problem dropping the columns at the exterior wall down to the basement level. IF IT WORKS DON'T FIX IT!
RE: Basement framing-thermal considerations