Modelling Floor Diaphragms on Computer
Modelling Floor Diaphragms on Computer
(OP)
Hey there!
I hope someone out there can shed some light on this one: is there a simple ("quick & dirty") way to account for floor diaphragm stiffness when computer modelling a multi-story building? I have a concrete slab on standard bar joists, but that seems awfully time-consuming to model accurately by parts. Is there a conservative and reliable way to account for this without detailed modelling to the nth degree?
Thanks,
David
I hope someone out there can shed some light on this one: is there a simple ("quick & dirty") way to account for floor diaphragm stiffness when computer modelling a multi-story building? I have a concrete slab on standard bar joists, but that seems awfully time-consuming to model accurately by parts. Is there a conservative and reliable way to account for this without detailed modelling to the nth degree?
Thanks,
David






RE: Modelling Floor Diaphragms on Computer
RE: Modelling Floor Diaphragms on Computer
I use ATAAD pro and I model diaphragm as plate element. Provide proper properties (thickness, strength, possion ratio, etc as required by your software). I found this to give good and reasonable results even with corrugated steel roof deck.
I hope this helps