This section defines external diaphragms that connect adjacent tub girders.
Step 1: Navigate to External Diaphragm
Navigate to Bracing > External Diaphragm in the tree view.
External Diaphragm navigation External Diaphragm spreadsheet Step 2: Select Girders
Click the three-dot icon on Girders cell and pick both tub girders (G1 & G2) between which the external diaphragm will be placed.
Step 3: Define Diaphragm Locations
Create 5 external diaphragms with appropriate station values and skew angle = 0.
Step 4: Set Diaphragm Types
Assign Pier-End type for the first 4 rows (at support locations)
Assign Intermediate type for the last row (mid-span location)
Click the three-dot icon on Select Pier/End cell and pick the appropriate support locations. Enter station = 260 for the intermediate diaphragm.
Step 6: Set Offset Values
Enter Offset from Pier/End values as required.
Step 7: Assign Material
Click the three-dot icon on Material cell and assign A709_50W to all external diaphragms.
Step 8: Optional Settings
Modify Section Details and Stiffener tabs if desired.
The completed external diaphragms are shown below.
Completed external diaphragm plan Completed external diaphragm 3D Completed external diaphragm detail Last updated
