Minimum Yield Stress of the Flange and Web ( Fyw & Fyf ) 1

[dursunlutfu]

Hi Folks,

I am checking the flange and web capacity of an existing W 12 x14 beam for new introduced point loads (columns). Because the W 12x14 is sitting on a concrete wall, I am not concerned about the bending. I am using the 14th edition steel manual, and I am confused with the specified minimum yield stress of the flange and web, which were in formulas J10-1 and J10-2, J10-3.
Does anyone know the difference between standard steel yielding stress Fy ,and Fyw and Fyf.

Thank you for your time and energy!

 

[JoshPlumSE]

It's the same thing..... The formulas just acknowledge that the you have the possibility of built up columns (like in metal buildings or plate girders) where the web and flange could have different yield strengths.

 

[dursunlutfu]

@JoshPlum I thought about it but I just wanted to make sure before going further on it..
It feels really good to be sure..

Thanks a lot !