Risa Floor roof and floor modeling
Risa Floor roof and floor modeling
(OP)
First, thanks to all that make these forums a fantastic resource.
I'm a fairly new user to 3D and Floor. My steel framed buildings typically have two types of roof/floor assemblies.
What is the best way to model these two types of floors with respect to program inputs:
Roof: 20 or 22 ga B-deck with insulation and EPDM above and the deck is fastened to bar joists and WF beams with a 36/4 or similar pattern.
Floor: 6 inch total thickness concrete on a 20 ga, 1 1/2" B-Lok "composite" metal deck.
I don't intend to use shear studs on my beams. I use quotes on composite because in Floor it appears that all references to composite is to the beam-slab composite action afforded by shear studs, even though the B-Lok is also composite...in its own way. Is this correct?
Thank you.
I'm a fairly new user to 3D and Floor. My steel framed buildings typically have two types of roof/floor assemblies.
What is the best way to model these two types of floors with respect to program inputs:
Roof: 20 or 22 ga B-deck with insulation and EPDM above and the deck is fastened to bar joists and WF beams with a 36/4 or similar pattern.
Floor: 6 inch total thickness concrete on a 20 ga, 1 1/2" B-Lok "composite" metal deck.
I don't intend to use shear studs on my beams. I use quotes on composite because in Floor it appears that all references to composite is to the beam-slab composite action afforded by shear studs, even though the B-Lok is also composite...in its own way. Is this correct?
Thank you.





RE: Risa Floor roof and floor modeling
The roof deck is easy. There is just a span direction for the deck and a self weight of the deck. If you enter that in as your deck definitions then you only need to define the deck direction of the floor level. This can be done by using the default deck for that floor level (on the Floors spreadsheet), or by drawing in a specific deck area.
RE: Risa Floor roof and floor modeling