09-26-2010, 10:49 AM
Hi
To use Decking slab as floor only to distrbiute load and you want to design beams as a normal steel sections Do not use Deck section as a slab use only Plank section
this section will distribute load only to the secondary steel beams and then you can design these beams as a normal steel sections subjected to M N and Shear
But Be Careful!! When you build your model By Etabs do not use default setting of Steel Deck if you use this option and you change the deck to Plank Etabs will Keep the secondary beam as default and will design as composite also with Plank Floor...
So it is better to build your model by grids and do not use default Deck Option
Finally :
Deck Floor = Secondary beams are composite
Plank Floor= Secondary Beams are Steel (Non composite)
Hoping this is helpful
To use Decking slab as floor only to distrbiute load and you want to design beams as a normal steel sections Do not use Deck section as a slab use only Plank section
this section will distribute load only to the secondary steel beams and then you can design these beams as a normal steel sections subjected to M N and Shear
But Be Careful!! When you build your model By Etabs do not use default setting of Steel Deck if you use this option and you change the deck to Plank Etabs will Keep the secondary beam as default and will design as composite also with Plank Floor...
So it is better to build your model by grids and do not use default Deck Option
Finally :
Deck Floor = Secondary beams are composite
Plank Floor= Secondary Beams are Steel (Non composite)
Hoping this is helpful