AutoCAD Civil 3D :: Inlet Bypass And Street Section Modeling
Jun 27, 2012
We recently began experimenting with SSA and are trying to verify the inlet calculations that were done in excel to make sure we understand the software before putting it into everyday use. We've created a custom parabolic street section and applied it to the bypass links, and as far as that aspect goes, we understand it and it's all working great.
How to model inlets directly across from each other in a street section. The issues arise when the top width (of Inlet 1, in the attached graphic, for example) exceeds the half section width and flows over the crown into the opposite side of the street (to Inlet 2, in attached graphic).
We have tried weirs and flow diversions to no avail. Attached is an example of what I'm trying to explain. Inlets 1 and 2 are opposite from each other, and both connect into a MH labeled SD-J 29+33.00. Link-05 connects to the next downstream MH, and there are 2 links that follow the gutter lines to the North used as bypass links from Inlets 1 & 2.
Civil 3D 2014
Windows 7 Professional
Intel Xeon E31270 @ 3.4 GHz
8 GB, 64-bit
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Sep 28, 2012
I've created a network of my stormsewer (which means the stormsewer lines are all on different streets) and added the inlets to my street profiles.
How do I get the profile structure labels to reflect the stationing from the street alignments?
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Sep 18, 2013
How are people modeling curb inlet bypass flow? When I first got into using SSA, I looked on-line through some AU handouts and blogs etc. I learned to model on-grade inlets using direct bypass links. I would create one that linked upstream and downstream inlets. It appears that hydrodynamic routing is the preferred option for modeling pipe networks with storage nodes, and the direct links don't work due to error 134. It would seem that the logical fix for this is to model all gutter bypass as user defined open channel and create a channel section that matches the road and gutter section. Is that correct? Also, how does the software view a direct link versus open channel?
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Sep 11, 2012
After testing a simple culvert and pipe, it appears that inlet control is not checked for pipes. Does this mean that I have to model all storm sewers in a network as culverts just to check inlet control?
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Jul 10, 2013
what structure to use to model yard inlet?
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Jan 24, 2013
I am working on drainage for a median storm sewer, culverts and ditching for a large freeway expansion project. I have median storm sewers running down my entire roadway (about 5kms). I have manually inputed the upstream and downstream elevations of the pipes in SSA, but when these pipes are connected to an inlet or junction, I only have the option of selecting one invert elevation for each structure (I am actually using a lot of catchbasin manholes in this project, which I am unsure of SSA's ability to model). I have multiple drops of varying elevation differences throughout the project, with some of these inlets/junction requiring drop structures due to the large difference in elevation change. How do I properly model this in SSA?
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Oct 17, 2012
I do not have two outlet from 4 different intakes. The four intake are modeled as on-grading intake and do have both a bypass link and pipe line attached. Attached is the model that I have been working with. The intake causing the problems are:
EX.I-01
EX.I-02
EX.I-05
EX.I-06
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May 8, 2013
On grade Inlet Inlet-01 does not have two outlet links. At least one stormwater sewer pipe and a bypass gutter link must be defined.How do I add another link?
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Jun 7, 2013
Any hydraflow calculates depth of flow and spread at sump inlets? Does it assume that the entire flow is coming from one direction (similar to an on-grade inlet)? Or does it make an assumption about how much flow is coming into both ends of the inlet?
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Nov 29, 2012
The SSA literature states to use an On Sag inlet to model an inlet used in the middle of a parking lot.
This is more commonly known as an "Area Inlet" application, and is also used in areas such as airport runways, greenbelts and golf courses.
To develop the correct operating head relationship over the grate, we need to be able to enter a stage-storage curve starting from the grate elevation. This will develop the "cone" shape storage needed to develop the correct head elevation over the grate.
It appears looking at the On Sag options there is only the Ponded Area parameter available; the same parameter found in a Junction. This calculates the head elevation as a function of the ponded volume and a constant area.
I want to confirm that the On Sag inlet application used as an Area inlet, is using all four sides, full perimeter = 2(L+W), of the inlet for the weir flow calculations before orifice flow controls, not just 3 sides as a grate on a curb.
C3D 2014 SP1
W7x64; i7 8gb; Radeon HD 5700
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Dec 10, 2013
I would like to know if it is possible to display the pipe inlet/outlet elevation in my structure label. It seems like it is not possible.It is possible to use the inlet/outlet elevation of the pipe in my pipe label however I would like to display it in my structure.
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Sep 20, 2012
how can i insert open street map file (osm) in autocad civil 3d 2012.
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Mar 7, 2012
I have a single street alignment that looks like an “n”. My issue is the west side of the “n” is named “Main Street” & the east side is named “First Ave” in the real world. Is there a way to have an alignment name from station 1+00 - 10+00 be different than 10+00 - 20+00 for automatic label purposes? I would rather not break the alignment since it one long continuous street & in some instances there is a vertical curve within the breakpoint. JUst need to figure out how to use automatic lables for naming street intersections.
Using C3D 2010 but curious on newer versions too.
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Mar 17, 2009
I have a few questions regarding spread/street capacity:
When calculating the spread at the catch basin locations, how does it determine the curb height?? Does it always assume 6"?? what if it is a roll curb??? is it olnly determined by the "throat height" of the inlet?? How can I calculate my spread on random spots throughout the street??
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Dec 31, 2013
I have ran an analysis and SSA gave me Error 607 on the report. It says "Inlet A9 gutter capture curve is not a valid curve."
A couple things I did different from the video lectures...
I selected user define for the Tc to figure out Q. i computed those manually.
For the Inlets I have selected Maximum Capture Cutoff.
There are some inlets in this model I created that do not capture 100% of the flow so i created conveyance links to account for the bypass flow.Not sure why is not recognizing the Curve?
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Feb 20, 2013
I have lots of section views with some surfaces and pipes. Unfortunately, in a number of section views pipes are not shown in full height because the section view level range is too little. What I am wondering is - is it possible to automatically adjust section level ranges so that they fully include pipe sections? Please see also the image in the attachment.
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Mar 26, 2012
C3D 2012...but this feature has probably been in C3D for sometime
1-What is a 'Line Marker in Section' Section component of an Alignment Style?
2-How is it used (example )?
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May 21, 2012
When i am creating section sheets from multiple section views ,section sheet view port scale changes.I did set it correctly in my template.
For example it changs from 1:150 to 1:150_1
Then in section sheets scetions views are not displaying correctly.
When i change view port scale manually it shows correctly.But it should do to all sheets.
What should I do?
In model spacr multiple section views are showing correctly.
AutoCAD Civil 3D 2012 SP 2
Sri Lanka
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Jul 17, 2013
Is it possible to add additional cross sections (sample lines added after views were created) to an existing Section View Group?
C3D 2012 SP3 & C3D 2014 SP1
Win 7 Professional 64 Bit
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Aug 12, 2013
In my section editor my labels show up correctly and in all the locations I want. But then, in my cross section file, I look in my section views and they are completely different. When I try to label more points under the Code Set Styles, they won't even show up on my section views.
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Mar 5, 2012
I think I just haven't done this in a while and can't find the right setting.
I have existing sections.
I have section views.
I created a corridor.
How do I add the corridor section to my existing cross-section in the section views?
I can view them in the corridor section editor. But I should also be able to add the corridor section to my section views, right?
To plot them, do I NEED to do this through Sheets Sets? I don't have experience with sheet sets yet.
I don't use Civil 3D often enough anymore. Still learning much about the new interface and pulling a design together.
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Mar 8, 2012
I've got a corridor where the section editor does not show a section that the corridor has created. My frequency is set to 25' with high/low points along curves. At station 22+75, in the model space the corridor shows a section being created (image #2). However, I cannot edit or even see that section in the section editor (image #1). The first screen shot shows the list of stations for the corridor in the editor while the second screenshot shows the model space at the problem station. This is in the middle of a region, so there shouldn't be any issues with other assemblies or regions.
In the section editor, Sta 22+74.91 is listed, skips 22+75, then lists 23+00. I am needing to manually adjust the cross slopes of my lanes. If I view the surface there is a weird dip because at station 22+75 the default slope of my lane is -2%. I cannot edit station 22+75, so I cannot adjust the cross slope of the lanes.
What is causing the section editor to not even recognize a section? How can I edit the cross slope at station 22+75 if the editor doesn't even display that section?
Infrastructure Design Suite Premium 2014
Civil 3D 2014 x64
Windows 7 64-bit
6GB RAM
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Oct 12, 2012
I am working in Civil3d and have a 3d polyline that i want to generate a 2d section line of i.e the path of the section plane is along the 3d line
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Nov 8, 2012
I am having an issue when producing a section view with my corridor. I have a corridor and corridor surface, as well as an existing ground surface. I create a sample line group and sample EG, Corridor Surface, and Material. When I produce a section view I get 4 sections in the view: EG, Corridor Surface(with the corridor surface naming convention), and an additional section simply called "Corridor Surface".
This last section is strange in that it seems to be using the correct assembly, but not targeting the correct features. Also it has grips at all of the vertices which I havent seen before.
And the strangest part, when I click on properties for this section and go to section data, the columns for Description and Data Source are blank.
If there is no data source, then where is this section coming from, and why is it showing up when I did not specify that it be created. This is a real mind boggler to me and makes no sense. Screenshot attached.
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Oct 16, 2012
My future ground somehow disappeared out of one section view in my group. Under the section tabs I still have my existing ground and pipenetwork but the future ground isn't there. It remains in the other section views. How do I add it back?
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Jan 26, 2012
Ive been searching for a tutorial to get the same effect as the picture I have attached.
Half Sea and Half land.
I found this in an australian company portfolio called constructive media.
how i can set up a scene and achieve the same kind of effect?
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Dec 18, 2013
I'm attempting to follow instructions from a book to scale down part of a cylinder (as shown below). To quote the instructions directly:
[QUOTE]"Right-click the cylinder, and choose Face from the marking menu. Select the end faces, and scale them down a bit as in Figure 4.43 [ATTACHED]. This gives you the main part of the boiler."[/QUOTE]
I can't get it to scale down the way it is depicted in the photos. I tried selecting the faces and simply scaling, and I also tried selecting the faces and choosing "Extrude" first, and that did not work either.
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Aug 14, 2013
I've got 1800 attributes that need to be numbered from 1 to 1800 from left to right.
I got a Lisp that can do that but the only thing is when I select it with selection window, he wil sort all atributes on their unique handle code. So I have the first 40 attributes going from left to right with groups of numbers at the wrong place like 1-10, 31-40, 21-30, 11-20 instead of 1-40.
This is because when you copy an attribute he wil place a new unique handle coded attribute and the copy contains the previous handle code.
But if I select them one by one from left to right and run my lisp it just works fine cause it seems it doesnt look at the handle code to place the numbers in that order.
So is there a way that I can select multiple attributes, like I'm selecting them one by one from left to right, so I can bypass this attribute handle code?
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Jan 5, 2013
I want the ending of the following tube to have a circular geometry instead of a rectangular one.
[URL]
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Oct 22, 2013
Im totally new to max. Im trying to draw a ship hull. I draw frames and placed in positions then i tried applying coss section modeifier and tried also to connect vertices manulay.
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Feb 25, 2013
I'm modelling a complex curve for a fashion garment. I've always modelled in polygons in the past but have had more success on this project using nurbs, however I've got to a certain position and I'm wondering which way is the best way to model / create the next section of the garment(see image attached). Is it just the case of creating lots of section lines as lofting?
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