This section defines temporary support elements for segmental construction of the Concrete U Girders.
Navigation: Superstructure > Temporary Support > Single Element
Steps
Step 1: Understand Temporary Support Purpose
When constructing Concrete U Girders over a span, construction is executed in a segmental manner due to transportation constraints. Stability issues arise during this process, requiring temporary supports at specific points.
Step 2: Navigate to Single Element
Navigate to Temporary Support > Single Element in the tree view.
Navigation
Step 3: Select Girder
Click on the Girders column and select CUG1 from the dropdown.
Step 4: Pick Support Locations
Click Pick from the dropdown to select temporary support locations graphically.
Pick Locations
Enter the name as TSupL1 for the first support.
Step 5: Create Supports for Both Girders
The temporary support locations for CUG1 also apply to CUG2 since they are built identically as segmental girders.
Both Girders
Temporary supports are also used during closure pour casting operations of the girders.
Step 6: Define Additional Supports for Fixity Changes
Temporary Supports 3, 5, 7, and 9 have fixity states that change during construction. These supports are redefined to accommodate the changes (explained in detail on the Construction Stages page).
Additional Supports
Step 7: Configure Fixity Values
Navigate to the Fixity spreadsheet.
Fixity Tab
Enter the fixity values for each temporary support as shown. The fixity pattern varies based on whether the support needs to resist axial forces during specific construction stages.
Verification
After completing these steps, the temporary supports are defined and ready for use in construction stage definitions.
