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Analyze Gravity Network Clogging Factor?

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Message 1 of 5
KirkWM
513 Views, 4 Replies

Analyze Gravity Network Clogging Factor?

In the newer "Analyze Gravity Network" tool, built into C3D, is there a setting for "Grate Clogging Factor" similar to SSA? Thanks.

4 REPLIES 4
Message 2 of 5
KirkWM
in reply to: KirkWM

@BrianHailey you seem to be the new AGN guru 😄 just came across your AU handout, thanks for sharing btw, (good point about HEC22 assuming the inlet is at a curb and gutter) (https://www.autodesk.com/autodesk-university/class/Analyze-Exploring-New-Analyze-Gravity-Networks-Ci...)  any thoughts? Also do you know if the calculated spread gets saved back to hydraulic properties of the structure? Thanks.

Message 3 of 5
KirkWM
in reply to: KirkWM

I've come up with a workaround, looking at HEC22 seems the clogging factor really just affects the effective width. The workaround is contingent upon having accurate parts which have the grate widths that you want, which can be directly mapped into AGN. So I did a dive into partbuilder, created a copy of a structure part, created 2 new parameters (one a list and the other a calculation). One gotcha (had to go back and fix this) is that when you create a new parameter you cannot change the unit again, so since the part is authored in inches, I created a new parameter to be my new effective width and choose inches. I then added the new part family and size to my structure part list having the new 50% clogging factor. Swapped parts in plan view. Opened AGN, clicked "network details" and "map structure parameters", then "mapping configuration", picked the new part family, went to "grate width" and changed source to the new parameter I made and applied to all fields. Then looking in the network details window it updated! Hope this helps any body else. (see pics below)

 

 

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Message 4 of 5
BrianHailey
in reply to: KirkWM

And I think @KirkWM is the new AGN guru! That was awesome you shared that workaround with us!

Brian J. Hailey, P.E.



GEI Consultants
My Civil 3D Blog

Message 5 of 5
KirkWM
in reply to: BrianHailey

Thanks 😄.  Thanks for taking a look.

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