why steel frame beam automatically changed to composite beam

[donnabean]

Hello all,

I am learning Etabs by building up a small project model. After i applied roof steel deck, all the roof steel beams automatically changed to composite beams because their design procedure showing that. How could I solve this issue? Thx.

 

[531234]

You can select the beams and overwrite to steel design from composite beam design (click design menu/overwrites/steel design).