I am wanting to get the peak flow back into Civil3d to add to our long sections, I assume the Peak Flow in SSA is the Flow rate property for the pipe in Civil3d, the HGL stuff seems to come in ok. I am just doing a basic rational analysis in SSA is there a trick to getting the data?
Attached is a screen capture of SSA versus Civil3d data
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I am modeling an existing storm system that is under capacity. After running the model, some of the flows seem to be incorrect. I have one section that has a known flow of 1.31 cfs. The results for this pipe section shows 28.82 cfs (peak flow during analysis) and 6.06 cfs (design flow capacity). The pipe section is a 15" with constructed slope of 0.0088 ft/ft. The max velocity attained is 23.48 ft/sec. I know that the downstream is undersized. Could this flow rate be caused by the downstream backflows? The model is setup as hydrodynamic and rational method. My inertial terms are set at ignore, time step = 0, junction surface area = 0 and variable time step with safety factor 75%. I have gutter bypass flows and my sag structures have ponded area set at 100.
View 8 Replies View RelatedI am trying to produce some longsections from a DWG Format Drawing i downloaded from a mapping website (promap) at the moment im going through the process of using a 3d polyline, snapping it to every contour i need, then viewing it from the side and drawing a longsection table around it (Pretty amatuer im sure) How is it possible to produce a longsection automatically using Civil 3D/AutoCAD (The contour map is made up of 3D Poly lines).
View 1 Replies View RelatedI'm having some problems using some existing MX highway design data I've brought into Civil3D using the genio import extension. Basically I can bring in all the alignments that I want to be able to use but am unsure where to go next in terms of creating a proposed profile line. My goal is to be able to pull out long sections and cross sections based on this data. Ideally I'd like to avoid doubling up on work in MX and Civil3D as much as possible.
View 2 Replies View Relatedwe are missing tool in SAC for stripping a surface exactly the same way how Stripping Pavement or Striping TopSoil works. There is no tool to copy and vertical offset part of the surface. I found out some workaround with Point Delta X on Surface and then vertical Offset, but this is very complicated and I am not able to follow each peak of the surface. Surface link is not suitable for Topsoil stripping.
View 9 Replies View RelatedFlow segment label using total Flow Type travel time for each segment:
C3D 2014 SP1
W7x64; i7 8gb; Radeon HD 5700
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Attached is my 1st project using SSA for detention pond design.
Where is the best place to view the results for the detention pond peak outflow and maximum HGL?
Also, the program seems to separate the results per year storm...anyway to view the results for all year storms in the same report?
how do you attach the .spf file?
2013 Civil 3D
I am having difficulties modeling culverts within my model for the 100 year flow. I have seen the sample file within SAS, and all of my culverts have a storage node at the upstream end with a weir representing the road. However, when the weir is utilized, peak flows are artificially high. For example, despite a basin only producing 11.7 cfs, the weir has 8.94 cfs and the pipe has 10.35 cfs. I am using hydrodynamic routing with a 5 second routing time step.
View 5 Replies View RelatedI have a client that wants to put in a constant flow into an inlet and have SSA calculate the HGL downstream of that (as well as add additional flows at additional inlets). Is there a way to do this? I tried adding an "Initial flow" to a pipe but after running the analysis, that flow wasn't the peak of the pipe (I used 1cfs for the initial flow and the peak was 0.77 cfs).
View 6 Replies View Relatedwhere the setting is to reverse the flow of a pipe. I have the flow arrow shown in the wrong direction plus am showing a negative slope on a pipe, which should never be done.
View 9 Replies View RelatedI have a huge subdivision that we are about to do in civil 3d. The subdivision has over 1800 lots. I am wondering what is the best way to go about this. At the moment we are thinking we have to do the alignments, profiles and corridors all in one design drawing for it all to be dynamic? If so this file is going to be huge. Is there a way we can split it up and still keep everything dynamic?
View 9 Replies View RelatedWhere can I find all the column types that are found in the different report types so I can use them in custom reports.
View 1 Replies View RelatedI have a simple catchment area that I've routed to an inlet and then to an outfall. The 10 year storm peak flow going into the inlet is 3.91 cfs and my flow in the link to the outfall is 10.55 cfs. I do not understand why it is increasing going into the pipe. I've attached the pdf results here because for some reason it won't let me attach.spf file.
View 4 Replies View RelatedI am trying to figure out how big my pipes need to be for a storm sewer that I already have set elevations for. Every time I input the pipe and rim elevations for the network in the data tab it changes the inputs back to saying design. How do I set my own elevations for the pipe network?
View 2 Replies View RelatedI can't figure out how to reverse the flow direction on my pipe so I was going to just redraw it but after I delete a pipe and rt click to edit network the "add pipes and stuctures" won't let me add anything. I'm just guessing I need to reverse the flow direction because my invert out and invert in elevations are backwards in the profile. I'm working in Civil3D 2012.
View 6 Replies View RelatedIs it possible to have pipe flow direction method set to "by slope" by default when we creating new pipes?
View 5 Replies View RelatedI am modelling a steep channel of constant slope operating under super critical flow conditions between two small weirs. I have set up two different models to represent this:
1. A single link between the upstream and downstream weirs.
2. I have also modeled the channel as a number of smaller links with the same slope separated by nodes spaced arbitrarily along the channel length.
The two models give very different results. The former results in an unstable channel (oscillates between sub- and super critical flow) and a maximum velocity in the channel of around 1.5m/s. It seems to me that the velocity in the upper section of the channel should be higher. I assume this has something to do with the manner in which SSA averages the velocities along the entire channel link.
The second model gives more realistic velocities in the upper channel links (around 3.6m/s) and a hydraulic jump and transition to sub critical flow upstream of the weir in the lower channel. This seems more realistic. I think the trick here is to make sure that the downstream link is long enough to enable realistic formation of the hydraulic jump in the model.
I am trying to create a new linetype using arrows to show the direction of a flow. I can get the outline of my arrow head to save as a shape, but have not figured out how to save the hatching to show up in a linetype. I need the arrow head to be shaded in solid. Also is there any downloadable linetypes out there for Civil 3D?
View 5 Replies View RelatedNow, in my understanding, the flow arrow should either be rotated 0, or 180 (pi radians). But clearly, some of them like to have their own mind about things, and decide on some other rotation. It seems that on the steep slopes, the arrows go a bit skew.
I think the skew is related to the actual elevation difference of the segment, rather than the steepness of the slope. A long segment with 15% slope has a worse skew than a short segment at over 30%, presumably because the elevation difference from the start to the end of the segment is larger.
I can't seem to find where to increase the flow direction arrow size on a watershed. Am accessing remotely, it's a bit laggy and bothersome, but doable. I looked all over Toolspace.
View 3 Replies View RelatedI am trying to work on a previous file in my office, and when it opens on mycomputer, it does not display as it should.
In general, the purpose of the project is to reinstate the side slopes of a road abutting a river. Cut & fill sections have been generated on 20m station increments along the road corridor/surfaces in order to calulate cut and fill as well as to reference the design to flood levels.
When I open the file, all of these sections (and there are alot) have relocated themselves to various locations in model space, none of which are aligned with the viewports that are being used for printing.
Could it be software and/or hardware incompatibility with the computer they were originally created on? (I believe it was created with C3D 2010, or C3D 2011 - I am currently running 2012)
I am analyzing a culvert in a tidal zone which has an outlet invert level below the normal tidal range. The invert level of the culvert outlet is -0.520m, however Hydra flow Express Culverts will not allow a negative invert elevation to be entered.
View 2 Replies View RelatedI was tried to convert a point from UTM-39N to Lat/Long using geodetic calculator; but when I checked the converted coordinates by another applications (like GeoLab); they were a little different (about two seconds) & I'm sure GeoLab is right.
My settings and other information is attached.
I am working on a drawing for the COE. They require that the horizontal scale is 1"=20 feet for cross sections. Unfortunately the sections that I need to cut are so long that they don't fit on the page. Currently I am creating multiple viewports in paper space and creating split section views in that way but it is starting to get out of hand.
Any better way to handle sections that won't fit on a page? I can't change the scale.
I have created an alignment and long section and over layed my assembly to produce the corridor through my alignment. However it is standard practice in the UK to show the channel levels on a long section.
View 3 Replies View RelatedIn Civil 3D 2013 > Settings tab > General > Label Sytles > Note . . .create a new label style that will label the latitude and longitute of a location in your drawing. Assign your drawing a coordinate system. Now label a point in your drawing with the newly created Lat-Long label. Tell me if it works. I've not had any luck with it. I can do it fine in Civil 3D 2012, but no matter what I do (old drawing, new drawing, any template) it just doesn't seem to work in Civil 3D 2013.
View 9 Replies View RelatedIt's taking a long time to move cogo points. About 2 minutes for a single point move. Other commands affecting points are taking longer too. Would it just be a function of file size.
Sample point:
AECC_COGO_POINT Layer: "V-NODE-P-CURB-FACE"
Space: Model space
Handle = daf3e
Primary point group : Pro Face Curb
Point Number : 5198
[code]...
I have a copy of an old plan showing curved boundaries which I wish to recreate in C3D. There's lots of connecting arcs, all of which are annotated like:
RAD 15
CHORD 21.213
121°22'15"
ARC 23.56
T.L. 15
I can see that the first line is the radius, the 2nd and 3rd lines are the length and orientation of the arc chord, the 4th line is the arc length. I've been able to get a correct result by firstly drawing the chords, then adding arcs with the appropriate radii between the two ends of each chord. However, I'm sure there's a quicker and easier way. Sometimes the arcs are separated by short sections of straight line which have length and bearing details as well.
Attached is a screen shot of a short length.
It seems to happen randomly and I can't tell what triggers it. Everytime I regen or autosave/save the status shows "displaying contours" and a load bar that takes way too long and slows me down...
View 9 Replies View RelatedFor some reason I am unable to get my lat and long's to display using note labeling in C3D 2013.
I can setup a labeling style to add and display NE coordinates where ever I place them on my surface but my Lat and Long label style remains blank.
I've checked layer being on, text size, drawing unit/zone settings, even tried replacing my NE label style call outs in the NE label style text component editor properties to Lat and long and still remains blank in my composer preview....
I have sevreal corridors with various spurs. The contractor wants the cut/fill volume in sections along the corridors, not one big cut/fill calc. Is there a way to do this in C3D? I have got the volume table with the chainages on, but he does not want a cumulitive figure for the whole corridor.
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