Storm and sanitary

Rain in the Plain: An Introduction to Autodesk Storm and Sanitary Analysis

Matthew Anderson, PE CFM Autodesk, Inc.

CI4323-L This lab focuses on the learning the interface and capabilities provided by Autodesk Storm and Sanitary Analysis. The class will cover some best practices and workflow for importing information into Storm and Sanitary Analysis and performing analysis. A special emphasis will be made to focus on the capabilities of Autodesk Storm and Sanitary Analysis together with AutoCAD Civil 3D. If you import industry models from AutoCAD Map 3D or pipe networks from AutoCAD Civil 3D, and you have been wondering how to start your analysis, this class is for you.

Learning Objectives At the end of this class, you will be able to:

Understand and use the SSA interface

Learn and work with the SSA building blocks for successful modeling

Identify the capabilities and limitations

Learn the methods to share model information between Map 3D &/or Civil 3D and SSA

Build, perform, analyze and report the results of a stormwater design

About the Speaker Matthew C. Anderson is currently a Quality Assurance Consultant with Autodesk. Prior to

coming to Autodesk, he was Vice President and Project Manager at Joseph A. Schudt &

Associates in Frankfort, IL and when he finds some inspiration will occasionally blog about his

AutoCAD Civil 3D exploits on Civil3dpedia.com. Matt holds a B.S. degree in Civil

Engineering from Rose-Hulman Institute of Technology. He is a Professional Engineer licensed

in Illinois, Indiana, Wisconsin, Michigan, and Texas, and is a Certified Floodplain Manager.

[email protected]


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Welcome to the Rain in the Plain: An Introduction to Autodesk Storm and Sanitary Analysis.

Lab 1: Understand and use the SSA interface In this lab, we will review or introduce you to the Autodesk Storm and Sanitary Analysis (SSA)

interface. SSA is a separate application that is available with AutoCAD Map 3D, Civil 3D, and is

a part of the Infrastructure Design Suite installation.

To Start, locate the Desktop Icon shown here: or in AutoCAD Civil 3D type the

command StartSSA to begin.

View Tabs

Data Tree

Time Series

Profile Plot

Plan View


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On page 15 of the Users Guide, the toolbars key is shown below:


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Before we get too deep in to the lab, we should discuss the methods and calculation options we

plan on using in the lab. This is to get you started, and is not a comprehensive coverage of all

options. This Lab is only 90 minutes long!

Task 1: Project Options

Let review quickly the options available:

1. Open Autodesk Storm and Sanitary Analysis

2. Select Input > Project Options

3. In the General tab; we need to check and/or specify the following:

a. Units & element specifications

i. US Units: See page 177 of User Guide for more Unit related information!

ii. CFS

iii. Elevation

b. Hydrology runoff specifications (Page 178 thru 185)

i. Rational

ii. FAA

iii. Minimum Allowable TOC: 5

c. Hydraulic routing specifications (Page 186 and 187)

i. Hydrodynamic

ii. Hazen-Williams

iii. 0

d. Computational & Reporting options

i. None

ii. Check all available

4. In the ID Labels tab, we can review the Elements and the standard naming

conventions.

a. There are 27 elements, a prefix, the number of digits, starting and increments,

and suffix possibilities.

5. In the Element Prototypes, we can review and change the following;

a. Subbasin defaults

b. Node Defaults

c. Inlet defaults

d. Conveyance Link defaults

The User Guide provides an excellent discussion regarding the Hydraulic Routing methods and

if you ask, I can review what the differences are.

In this task, we will load an existing project file, and review the background image settings. We

will also annotate the Plan View and perform analysis to see the visual respond of the model

analysis in plan view.


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Task 2: Loading Background Images

Let us navigate some example projects to learn the interface:

1. From the File menu, Open a New file here in the following directory.

C:\datasets\Thursday\CI4323-L Rain in the Plain An Introduction to Autodesk

Storm and Sanitary Analysis\Pre-Developed

2. Open the Pre-Development.spf file.

3. Under the View menu, select Layer Manager.

4. Select the ellipsis button at the end of the Image/CAD file.

5. In the Open Image/CAD file dialog box, select the

drop-down.

6. Review the All of the Image / CAD file types that can be loaded into Autodesk Storm and

Sanitary Analysis.

7. If an AutoCAD drawing file containing Layer is selected, the button would

allow you to turn on or off the visibility and color of a drawings layer.

8. Select OK to dismiss the Layer Manager.

9. Locate and click on the running man icon to perform analysis.

Note that only one drawing or

image file displays at a time.

Be sure the units of the

drawing/image match the model

units SSA does not perform

transformations.


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10. When the Perform Analysis is complete, mark the and select

an appropriate location and name for the Solution (SOL) file.

11. Select OK to Dismiss the Perform Analysis dialog box.

12. In the Plan view, you will notice a number of nodes and links turned blue.

13. From the View menu, select Display Options.

14. In the middle of the dialog box, locate and select the Annotation section, and select

Node IDs and LinkIDs to enable plan view labels.

15. Press OK to continue and return to the canvas.

Autodesk Storm and Sanitary Analysis ability to load a single drawing or image file as a

background image is helpful when used in conjunction with AutoCAD Civil 3D. With the Edit in

SSA command, your AutoCAD Civil 3D drawing will automatically load in the background. The

AutoCAD Civil 3D object enabler and SSA Layer Manager allow you to visualize your model,

clear clutter, all the while preparing your analysis.

Some of the power of Autodesk Storm and Sanitary Analysis is the ability to review the model

across a broad range of events. After years of staring at reams of TR-20, and HEC-1 output, the

visualization and graphic capabilities of SSA allow the engineer to quickly see and understand

the models behavior.

Task 3: Time Series Review

In this task, we will review the for multiple solution files and

visualization of the analyses.

1. Create a new project in SSA.

2. Click on the Time Series Plot below the Data Tree to enable the Time Series Display.

3. In the whitespace above, Right-mouse-click and select Open Solution


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4. Browse to the Lab directory:

C:\Datasets\Thursday\CI4323-L Rain in the Plain An Introduction to Autodesk

Storm and Sanitary Analysis\

and select and open each one of the following files:

a. Existing Conditions 2Yr Storm.sol

b. Existing Conditions 10yr Storm.sol

c. Existing Conditions 100yr Storm.sol

5. In each Solution file, expand the System Tree.

6. Select each Outflow node

7. In the Time Series Plot Display Window, the graphical representation of the items

selected in the tree view display the project results.


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These images can be copied, customized, and exported into reports (like this one!)

--- Purposeful whitespace ---

Outflow : System (Existing Conditions 100YR Storm)



Outf

low

(cfs

)

130

120

110

100

90

80

70

60

50

40

30

20

10

0

Time (hrs)

38.8834.5630.2425.9221.617.2812.968.644.320


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Lab 2: Learn and work with the SSA building blocks for successful modeling

AutoCAD Civil 3D and Autodesk Storm and Sanitary Analysis share some new features that

assist you, the engineer or designer layout, design, and analysis your complete stormwater

network.

In most cases, you will likely be importing pipe network or GIS information to and from AutoCAD

Civil 3D or Map 3D and Autodesk Storm and Sanitary Analysis. This will typically import most of

the network elements. You may not be happy with the element or you need to create other

elements within SSA.

Task 1: Nodes and Links

Lets accomplish a simple stormwater network and tackle in addition, and conversion of network

elements.

1. Open Autodesk Storm and Sanitary Analysis

2. Open the CI4323_Lab_2_Task_1.spf drawing from the C:\datasets\Thursday\CI4323-L

Rain in the Plain An Introduction to Autodesk Storm and Sanitary Analysis\

directory.

3. A simple napkin sketch image is loaded as the background image.

4. From the toolbar, use the Add Subbasin to digitize the Subbasin

5. Next, Add the Inlet

6. Add the Junction

7. Add the Outlet

8. First, select the Sub-01, right-click and Connect to and select the Inlet-01. This

creates a linkage between the Sub-basin and the resulting discharge Point. A Discharge

point can be any nodal element or it can be another sub-basin.

9. Finally, use the Conveyance Link tool to connect Inlet-01, Jun-01, and Out-01

10. Repeat the creation of a Conveyance Link from Inlet-01 to Jun-01, however, do not

proceed directly from one to the other. Digitize a parallel course by selecting Inlet-01,

adding two vertexes, and then select Jun01.

11. Select Jun-01, right-click and select Convert to > Storage Node.


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12. Select Inlet-01, and review the properties:

13. In the Roadway/gutter bypass link, select the dropdown and select the Link-03. This

creates the surface connection between this inlet and the downstream receiver of the

inlet bypass.


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14. The Upstream roadway links provide a way to collect any surface links that should

provide water that needs to pass the inlet.

15. Enter a Rim Elevation of 700 and Invert of 695 and press OK.


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16. Click on Link-03 and open the properties.

17. In the chart below, enter the following:

18. Press CLOSE

19. Click on Out-01, and open the properties.

20. Change the Invert Elevation to 691


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21. Click on the Sub-Basin, and open the Properties.

22. Change the Area to 5 acres and press Close.

23. Select Analysis > Analysis Options and change the End Analysis on time from

00:00:00 to 02:00:00 for 2 hours.

24. Press Run

Congratulations, you have now successfully built and performed your first hydrodynamic model

with some of the basic modeling elements Inlets, Links and Sub-basins.

A new addition to Autodesk Storm and Sanitary Analysis for 2012 was the ability to import Stage

Storage curves from AutoCAD Civil 3Ds Stage-Storage tool.

Lets take a look!


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Note: If you maintain a separate Pond Only

Surface, defining the basin from Surface

Contours will work with some caveats. It may

be easier to define by Polylines, and use the

Extract Objects from Surface option.

However, each contour elevation needs to be

unique.

Task 2: Stage-Storage Tool

1. Open AutoCAD Civil 3D;

2. Open the CI4323_Lab_Rain_Plain_Pond.dwg from the C:\datasets\Thursday\CI4323-

L Rain in the Plain An Introduction to Autodesk Storm and Sanitary Analysis\

directory.

3. From the Prospector, Select the Pond Surface and select Zoom To

4. Click TIN Surface ribbon tab Analyze panel drop-down Stage-Storage Tool.

5. Specify the following:

a. Report Title: Rain in the Plain

b. Project Name: AU 2011 Lab

c. Basin Description: Sample

Pond

6. Select Average End method.

7. In the Basin Definition Options, click

Define Basin.

8. For Basin Name enter Stormwater

Detention 1.

9. Click Define Basin from Surface

Contours.

10. Click Define.

11. Follow the command prompt and

graphically select the surface.

The Stage-Storage Report dialog box

populates with Contour Elevation and

Area data or Stage-Area values,

together with the Average End Area

Volume calculations.


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12. At the bottom of the dialog box, click Save Table into the \Dataset.

13. Create AU2011Pond.aecsst.

This task creates the Stormwater Stage-Storage Table. This table is ready to be imported into

your SSA model.

Task 3: Add Storage Curve from Stage Storage

Once you have successfully exported the Stage-Storage table, this information needs to be

consumed in the analysis inside Autodesk Storm and Sanitary Analysis.

1. Open Autodesk Storm and Sanitary Analysis from the desktop icon, or enter StartSSA

at the AutoCAD Civil 3D command line.

2. From the toolbar, click the Storage Node icon and place it in the middle of the

Plan View.

3. Right Click the Stor-01 node, and select Properties.

4. On the Storage Shape section, change the Type from Functional to Storage Curve.

5. On the Storage Curve, click the ellipsis to open the Storage Curve Editor.

6. When the Storage Curves dialog box displays, click Add.

7. Name the Storage Curve AU 2011 Lab.


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8. In the upper right corner of the dialog box, click Load.

9. Change the Files of Type from Curve Data Files (*.dat) to Stage Storage Tables

(*.AeccSST) files.

10. Select the AU2011Pond.aecsst in the C:\datasets\Thursday\CI4323-L Rain in the

Plain An Introduction to Autodesk Storm and Sanitary Analysis\ directory.

11. Review the Storage Curve Data.

12. Click Close.

13. Click Close again on the Storage Nodes dialog box and return to the Plan View.


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Lab 3: Putting it all together

In this lab, we will look at two items within AutoCAD Civil 3D the catchment object and the

data transfer between AutoCAD Civil 3D and Autodesk Storm and Sanitary Analysis. Please

forgive the final surface. Its not perfect but that it not the point of this class! To start with, we

need to run a small little batch file to provide Autodesk Storm and Sanitary Analysis the tool to

correctly round trip the structure information.

Task 1: Register StormSanitaryMatching.bat

To perform this analysis, you need to run the RegisterStormSanitaryMatching.bat file from

the

1. Open C:\datasets\Thursday\CI4323-L Rain in the Plain An Introduction to

Autodesk Storm and Sanitary Analysis\

2. Run MappingforLab.reg

This Batch file registers the AU2011_Match.XML file as the Part Matching file. We will run a

restore at the end of class.

Task 2: Round Trip Start

With some basic SSA functionality covered, we need to pull together the complete workflow

between SSA and AutoCAD Civil 3D. The goal of this task is to map a catchment to a structure

and send the entire model to AutoCAD Storm and Sanitary Analysis for design and analysis.

This would allow us to export the completed analysis out to a Hydraflow Storm Sewer file format

and update the drawing file.

1. Open the CI4323_Lab_Rain_Plain_SSA.dwg

2. Turn on the layer _Catchments

3. From the Prospector, expand the Pipe Network and expand the Structure Table.

4. Select the Structure (2), right-click and Zoom to..

5. On the ribbon, Analyze > Ground Data > Catchment from Surface

6. Select the point at X: 10535.2603', Y: 8827.2740'.


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7. After the selection of the point, the following dialog box should appear.

8. Use the graphical picker adjacent to the Reference pipe network structure: and select

Structure (1);

9. Press OK to create the Catchment. You may want to alter the Runoff Coefficient

now.

10. The Catchment and Flow Path is created.


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11. The remaining catchments were completed and added to the pipe network.

12. Select the Edit in Storm Sanitary Analysis from the Analyze > Design panel.

13. Select the network to export.

14. After Autodesk Storm and Sanitary Analysis launches, select

Create new project and press OK.

15. The network imports, the parts are matched and the drawing is loaded in the

background.


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16. 17. We need to target the northern runs surface inlets so that flow from Structure-01 drains

to Structure-02, and Structure 02 to Structure-03.

18. We correct this by performing the following edits:

a. Add a vertex to the link first.

b. Then Select link, right-clicking and selecting the Connect to... and pick it from

Structure-01 to Structure-02

19. Repeat this edit for Structure 3.

20. While we mapped the links from upstream to downstream, we need to perform two items

on each structure. We need to establish the Roadway Gutter Link and Upstream

Roadway Link to make sure the surface connections are correct.

21. Check all three Structures.

22. Edit the two conveyance links to use a simple trapezoidal transects.

23. Since the drainage basins were pre-setup, the analysis is almost ready to go.

24. We will skip setting up rainfall since the file gets a sample file automatically. For your

local requirements, select the most appropriate rainfall IDF curve.

25. From the Analysis > Analysis Options change the duration of the rainfall event to 2

hours.

26. Perform Analysis.

27. Save the Solution file.


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Task 3: Profile Animation

Once the analysis completes, the engineer should review and understand the results. The good

news, SSA provides simple model feedback in both plan and in profile.

28. After pressing OK to save the Solution file, the model feedbacks instantly displays the

surcharged pipes and flooded nodes.

29. As shown in the image above, the red lines are surcharged pipes. The blue dots

represent flooded nodes.

30. In the Plan View, select Structure (1), right-click and select Start Profile Plot

from the canvas, or select Profile Plot from the just below the Data Tree.

31. Be sure the Starting node is: Structure (1).


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32. Select Out-1Pipe (4) as the ending node. If you get the surface links within the profile

plot window slowly pick in the plan view the individual pipes one at a time.

33. Click Show Profile.

34. Select the Output > Output Animation and press the Play button

At this point you can export the completed model back to a Hydraflow Storm Sewer file that can

be used to update the AutoCAD Civil 3D pipe network. There is only so much time to cover

these items in the lab but I want to alert you to some of the changes in 2012.

There are two new settings in AutoCAD Civil 3D 2012 for importing pipe networks. These

settings avoid the painful and messy Structure Matching settings. The Use Part Family ID uses

exactly what that name says to match a part on its return trip into Civil 3D. Part of the magic lies

deep within the XML file we registered that allows SSA to understand what is occurring and

what parts are which. The Allow Part Family Swapping is mean to avoid the unfortunate

match to a family you didnt set prior. For example, you may have a mixed material network a

few circular concrete, and some plastic pipes in one network. You dont want your 10 PVC

pipe being imported as a 12 Concrete due to the Part Matching settings.

There is more detail in the AutoCAD Civil 3D users guide on how to get this to correctly function.

That wraps up this Autodesk University Lab with one exception. We need to clean up after our

message and restore the original SSA XML setting. Please complete the following final Task 3.

Task 4: Clean up the machine

Please run the Restore.reg file to unregister the XML file used in the class.

1. Open C:\datasets\Thursday\CI4323-L Rain in the Plain An Introduction to

Autodesk Storm and Sanitary Analysis\

2. Run Restore.reg

This Batch file unregisters the AU2011_Match.XML file as the Part Matching file.

If you complete this part during the Lab, Congratulations! Is the surface flooding in

the model acceptable? Did you spot the error in the SSA model?

Learning ObjectivesAbout the SpeakerLab 1: Understand and use the SSA interfaceTask 1: Project OptionsTask 2: Loading Background ImagesTask 3: Time Series Review

Lab 2: Learn and work with the SSA building blocks for successful modelingTask 1: Nodes and LinksTask 2: Stage-Storage ToolTask 3: Add Storage Curve from Stage Storage

Lab 3: Putting it all togetherTask 1: Register StormSanitaryMatching.batTask 2: Round Trip StartTask 3: Profile AnimationTask 4: Clean up the machine

Documents

Storm and sanitary