| Properties | Description |
|---|---|
| Label | Name of a thickness. You can use a label created automatically. For example, after you specify the constant thickness, and enter the value 12 in the Th = field, the automatic label is TH12. |
| Color | Color for displaying a thickness |
| Constant Th = | Select it to specify the constant thickness over the surface of a floor, wall, or panel. In the Th field =, enter the thickness value. |
|
Variable along a line
P1, P2 |
Select it to specify thickness that varies linearly for a surface element. Then specify a line along which the thickness varies by entering coordinates of 2 points: P1 and P2. For each of these points, specify a thickness. |
|
Variable along a plane
P1, P2, P3 |
Select it to specify thickness that varies along the surface for a floor, wall, or panel. Then define a plane by entering coordinates of 3 points: P1, P2, and P3. For each of these points, specify a thickness. |
| Reduction of the moment of inertia | Select it if you want to reduce the bending stiffness of a surface element. Then in the edit field, enter a reduction factor. Reduction has no effect on the membrane stiffness (compression, tension) and transversal forces. Elements of the bending matrix for finite elements are multiplied by a specified value of the reduction factor. Reduction of moments of inertia for RC sections is applied in static calculations to account for the influence of section cracks. The USA codes (such as UBC 1997 point 1910.11.1 or ACI 318 point 10.11.1) allow this method. Examples of stiffness reduction values according to ACI:
|
| Parameters of foundation elasticity | Click this button to open the Definition - Elastic Foundation dialog. There you can define the Kz elastic foundation coefficient. |
| Material | Material assigned to the thickness. |