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Exporting data from Civil 3D to Autodesk Storm and Sanitary Analysis (SSA) allows you to analyze and design stormwater and sanitary sewer systems in a more detailed hydrologic and hydraulic environment. Follow these steps to export your pipe network data to SSA:
1. Prepare the Pipe Network in Civil 3D
Verify Pipe Network Data:
Ensure that the pipe network is properly set up in Civil 3D.
Assign correct labels, slopes, invert elevations, and connectivity for all pipes and structures (manholes, inlets, etc.).
Check the Surface:
Confirm that the ground surface is associated with the pipe network. This will provide accurate cover depths for SSA analysis.
Assign Pipe and Structure Properties:
Ensure that all pipes and structures have proper Hydraulic Properties, such as:
Manning's n values.
Diameters, lengths, and material properties.
Go to Toolspace Prospector tab Pipe Networks and check the properties.
2. Export the Pipe Network to SSA
Open the Export Tool:
Go to the Analyze tab on the ribbon.
Under the Design panel, click on Edit in Storm and Sanitary Analysis.
Select the Data to Export:
In the Export Storm Sewers dialog box:
Choose the pipe network(s) to export.
Select the associated surface (e.g., existing ground) for elevations and cover depths.
Confirm the units (metric or imperial) match your project.
Specify the SSA File Location:
Browse to select the destination folder and filename for the SSA file (with a .STM extension).
Export the Data:
Click OK to export the data. Civil 3D will create an SSA file and launch Autodesk Storm and Sanitary Analysis.
3. Verify Data in SSA
Open the SSA Model:
Once SSA launches, the exported data will automatically load into the software.
Review the imported network, including pipes, structures, and surface data.
Check System Connectivity:
Ensure that all pipes and structures are properly connected and that invert elevations and slopes are consistent.
Update or Modify Design Parameters:
In SSA, you can refine the analysis by:
Assigning hydrographs or rainfall data.
Adjusting pipe diameters, slopes, and materials.
Adding or modifying detention ponds, weirs, or other flow control structures.
4. Run the Analysis in SSA
Define Rainfall Data:
Set up rainfall or storm event data based on your design criteria.
Assign catchment areas to structures as needed.
Perform Hydraulic and Hydrologic Analysis:
Run simulations to analyze flow rates, water depths, and hydraulic grades in the system.
Generate Reports:
Use SSA to create detailed reports, hydrographs, and flow profiles for review.
5. Import SSA Results Back to Civil 3D (Optional)
After completing the analysis in SSA, save the updated .STM file.
In Civil 3D, go to the Analyze tab Import Storm Sewers.
Select the modified .STM file to bring back changes to the pipe network.
Tips:
Keep units consistent between Civil 3D a
