GGU-STABILITY: "Export to GGU-SLAB" menu item

This menu item is available for bending design of the concrete shell. A dataset is exported which can be read by the GGU-SLAB program. Only systems with 1 slope face can be exported. The GGU-SLAB program allows analysis and design of slabs using finite-element methods.

For more information on the upper dialog group box, "What type of face plate?" please refer to "Theoretical principles". If you have not selected a "Solid slab" the following dialog box opens after confirming with "OK":

The program calculates the maximum value from the existing vertical nail centres and proposes this as the value for the equivalent plate for the GGU-SLAB analysis. This value can be edited by the user.

The two values in the middle group box of the "Export to GGU-SLAB" dialog box define the fineness of the finite-element array exported to GGU-SLAB. However, refinement of the finite-element array can also be very easily performed in the GGU-SLAB program.

For more information on the constant distributed load on the slab please refer to Section 9.8.8.

The structural system exported to GGU-SLAB utilises the symmetry of soil nailing. The three possible structural systems for export to the GGU-SLAB program are shown in the following figures.