Walls
Three surfaces were created when copying the lines upwards. To check their properties, select all surfaces by drawing a window over the entire model. Then double-click one of the selected wall surfaces.
In the 'Stiffness Type' area, 'Without Thickness' has been allocated. Open the list and select the Standard stiffness type.
In the 'Thickness with Material' area, select thickness no. 2 that was defined for walls.
Click OK. When you click in the empty workspace to cancel the selection, the color of the surfaces change from red to concrete grey.
Slabs
To add the slabs, click the
button on the toolbar.
The 'New Rectangular Surface' dialog box opens. Make sure that the Standard stiffness type and material no. 1 for slabs are set. Then click OK to start defining the surface graphically.
Define the lower slab by clicking its diagonal corners – for example node 10 and then node 12. (It is not required to adjust the work plane because the nodes of the slab already exist.)
As the stiffness type and thickness also apply to the second slab, continue setting surfaces. Click nodes 13 and 15, for example, to define the higher slab.
Right-click to quit the 'New Rectangular Surface' function.
Connecting Surface
You can define the vertical connecting surface between the slabs in the same way. Alternatively, this surface can be created by selecting its boundary lines.
Defining surface by boundary lines
Click
next to the 'New Rectangular Surface' button to open the list of surface shapes.
In the 'Thickness with Material' area, select thickness no. 2 that was defined for walls.
Click OK. Then select the four boundary lines 11, 23, 14, and 18 to define the surface between the slabs.
When you have selected the last of the four boundary lines, surface no. 6 is created. Right-click to quit the 'Select Boundary' function.