Designing a Hot rolled channel and using cold formed channel

[Parrapit]

Hi All

I just need some advice I need to design a cold formed lip channel front to front, but because of the section seen as a custom section in my design program (Prokon). I can not check the section in the strength checks. I will have to do it by hand but don't have the time.

So can I check a Box Section or rectangular section which is seen as a standard section but it is also seen as hot rolled and not cold formed. I see in our standard some parameters change or is listed differently under stress relieved sections and non-stress relieved sections. This affects the strength checks.

I am not sure if I understand the term stress released and non-stress released correctly. Is hot formed, stress relieved and cold rolled and cold formed, not stress relieved, because of the heat used to form the section rather than pure strength to bend it.

I wanted to use the Box section or square tube section and just change the fy and fu to cold formed and use the same thickness of the cold formed and design according to that.

Would i be wrong by doing so?

 

[Jerehmy]

Yes they use two different codes. Hot rolled is AISC and cold form is AISI. You also get an extra buckling limit state (distortional) with cold form channels.

I'm not familiar with Prokon. There is cold form channel software out there.

Are you designing a wall??

http://itools.clarkdietrich.com/iprostud.php

http://www.clarkdietrich.com/suppor...software/design-engineering-software-download

http://www.ce.jhu.edu/bschafer/cufsm/

 

[Parrapit]

I am designing floor beams but on a span of around 9m.