Kevin Clark did a post earlier this year on “When a Pipe Network Structure isn’t a Pipe Network Structure”. Autodesk Storm and Sanitary Analysis (SSA) uses the STM file format as the mechanism for exporting a Civil 3d pipe networks out for consumption with SSA and the return trip back into Civil 3d – these settings within the command setting become critical. Kevin’s focus was on Civil 3d 2010 and what it did during the export to Hydraflow Storm Sewer. Let us take it one step farther – Autodesk Storm and Sanitary Analysis.
One of the main benefits of using object based design is having the ability to make the “drafting” a much more efficient task or bi-product of the design. A basic drafting entity shown on plans is the location of concrete pipe encasements. These encasements are usually required when utility crossings don’t allow for enough vertical or horizontal separation or if the fill height is too shallow and may need structural support. A typical concrete encasement on a sanitary pipe is nothing more than a concrete poured surrounding, a minimum of 6 inches thick around the pipe, for a required minimum length. When they are needed to be shown on both plans and profiles, I see many users taking a lot of time to draft these concrete encasements “manually”.
Civil 3D gives us users another, (not so obvious), option. In this post, I’ll share with you an idea of using the Pipe Network tools to give us a better, (I think more fun), way to add these encasements to your projects.
I decided that by sharing I could come up with some decent ideas from the Civil 3D community and who knows, and maybe somebody would learn something new (myself included). This week I’m going to share with you the pipe and structure label styles that we utilize for profile annotation. More after the jump.
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Split networks.
Merge networks.
Pipes from polyline – use Invert, Crown, or Centre.
Matt Kolberg
Yes you heard me, static null structure descriptions! One of the most annoying things about null structures when designing a storm system are the description resetting if you make any changes to the connected pipes inverts or within the structure properties. I would always find myself having to go back through each null structure to make sure it did not reset. For the longest time I looked high and low to see if anyone had found a way to fix this or work around this issue. Make the jump to learn my workaround. (more…)
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