efFeb
Structural
- Dec 25, 2019
- 68
Good Afternoon,
I am trying to model a floor in SAP to determine its frequency. So far I've done the following:
1. Modelled all the beams
2. Determined the I_cr.dynamic for the deck + topping (in steel units - i.e. concrete I is transformed based on the modulus of elasticity) - I got this from the decking supplier
3. Created a new area property (thin shell) with depth to give me equivalent moment of inertia
4. Added property modifiers for weight
5. Set f11, f22, f12 modifiers to very small numbers
6. Meshed shell in 1m x 1m areas, assigned automatic frame mesh
7. Inserted shell above the beams
I'm checking my model right now and am getting larger deflections than I expected in the shells. This is my first time trying to model steel deck in SAP so I would love any input on the best way to do this.
Thank you so much in advance!!!!
I am trying to model a floor in SAP to determine its frequency. So far I've done the following:
1. Modelled all the beams
2. Determined the I_cr.dynamic for the deck + topping (in steel units - i.e. concrete I is transformed based on the modulus of elasticity) - I got this from the decking supplier
3. Created a new area property (thin shell) with depth to give me equivalent moment of inertia
4. Added property modifiers for weight
5. Set f11, f22, f12 modifiers to very small numbers
6. Meshed shell in 1m x 1m areas, assigned automatic frame mesh
7. Inserted shell above the beams
I'm checking my model right now and am getting larger deflections than I expected in the shells. This is my first time trying to model steel deck in SAP so I would love any input on the best way to do this.
Thank you so much in advance!!!!
