Create and edit a pressure network

00:05

So, now that we've created our parts list, we're going to go ahead and create our pressure network.

00:11

So, in order to create a pressure network, what you have to do is you navigate to the Home tab of the ribbon bar,

00:16

drop down under Pipe Network and then navigate to the Pressure Network Creation tools.

00:22

If you had a object that you wanted to create a pressure network based off of, then you could use to Create Pressure Network from Object.

00:30

If you had an industry model, you could use that industry model to create pressure network from it.

00:36

We're gonna go ahead and use the Pressure Network Creation tools.

00:39

And then when we select that option, the Create Pressure Pipe Network window comes up.

00:44

We're gonna change our network name to Dev_H2O, because this is our water line for our development.

00:52

We're gonna use a parts list that we just created, which is 12-Trunk.

00:57

And then we are going to specify the target surface, which is important,

01:00

because our target surface tells our pressure network at what depth to be below a certain surface.

01:07

And so I know from our development profile that our EG surface, for the most part, is always underneath our development profile.

01:15

So, I can use the EG surface to dictate the depths on my pipe.

01:20

There is a small portion in here where it's slightly above the development profile.

01:25

And so if I wanted to, I could set my design depth a little lower to account for that issue right there and then I would have more than enough cover.

01:36

So, I'm going to go ahead and select EG as my surface name.

01:39

I'm going to go and not specify an alignment to associate this network with.

01:43

I am also not going to label any of the parts of the pressure network yet.

01:47

So, we're gonna go ahead and click "OK".

01:49

And what you'll notice is that the toolbar for pressure networks is different,

01:53

than the toolbars for everything else that we've done in Civil 3D so far.

01:57

This toolbar is locked up in the ribbon bar.

02:02

It's not a movable toolbar like all the other toolbars we've dealt with.

02:07

So, we have to work that up in here.

02:09

But it works exactly the same as any of the other toolbars.

02:12

So, we have a network settings area where we have our network properties, the surface we're targeting,

02:17

the alignment that we would be linked to, our parts list, and then our cover condition.

02:22

So, if I wanted to modify this cover condition from three, all I have to do is type in a number for my cover condition,

02:29

and then I would have enough cover in the areas where I might think that I could be having a problem.

02:35

So, I'm gonna go ahead and leave this as four.

02:37

I'm going to go over to the next area, which is, you select your material size, your pipe size.

02:43

We only offered a 12-inch pipe in our parts list.

02:47

So, that's the only option available for us in this dropdown.

02:51

From here, you have your Layout Methods, you have your Pipes and Bends, and Pipes Only.

02:55

Pipes and Bends is a better way to layout,

02:59

because it allows you to place the elbows that we put into our parts list at the time that you're placing the pipes.

03:07

If you use Pipes Only, you're only allowed to place the pipes based on deflection.

03:12

And so it doesn't work that well.

03:15

I much prefer Pipes and Bends.

03:18

So, we're gonna go ahead and go with Pipes and Bends method.

03:21

If you do a Pipes Only method or if you stopped in the middle of building a network and you need to start again,

03:27

you can add fittings to start that network over again or to add a missing part or something like that.

03:33

You can dropdown "Select the part you want to add" and then choose Add Fitting,

03:37

or dropdown, choose the appurtenance you want and then choose Add Appurtenance.

03:42

From here, we have the Modify section which has pretty self-explanatory modifying tools.

03:47

We have swapping parts, breaking pipes, moving parts, sliding parts, and then our Panorama Edit window for our network.

03:56

Next to that is the Compass and we'll show what the compass is when we're creating our network.

04:02

But just know that anything about the compass is in this area right here.

04:07

So, now that we have gone through this, we're going to go ahead and start laying out our pipe using the Pipe and Bends method.

04:14

And so what I'm going go ahead and do is, when you selected your pressure network creation tool,

04:21

it automatically jumped you into the Pipes and Bends method.

04:24

If you didn't want to use it, you could select Pipes Only or you can click on Pipes and Bends and it gets you out of the command.

04:30

So, I'm going to go ahead and click Pipes and Bends.

04:33

It's asking me to Specify First Pressure Pipe Point.

04:36

What I did is I created a line that I knew would allow me to have a nice 90-degree bend around this corner.

04:44

So, what I did is I laid out a line along the sewer line here and then I offset it up, I off set it down and out 10 feet,

04:53

and then I projected it at a 90-degree up to here.

04:57

So, I'm going to use this green line that's right in here and I'm gonna snap to the end of it.

05:02

And then I am going to come and follow along and snap to the end of it down here.

05:08

And so now what you get to see is you get to see the compass.

05:11

And so what the compasses is, it is a circle with tick marks at the locations of the bends that we have in our parts list.

05:18

So, we have our 90, our 45, our 22.5, and our 11, and our 0.

05:22

So, from these, you can lay out your pipes.

05:26

Since I set this up to be a 90, I'm going to go ahead and go with the 90 here.

05:29

I'm going to shoot down to this end down here.

05:33

And then I am going to click in.

05:36

And as you can see, I have the compass again.

05:40

I don't want to be going this way.

05:42

So, none of these other bends are going to work for me. I have to go with this 90.

05:45

But the problem is, is that this alignment isn't perfectly 90 in the corners.

05:50

And so you'll see my pipe is coming way out over here if I hit "Enter" to close out of that command.

05:59

I don't want to move these pipes around to try and get this to function better.

06:03

So, what I can do is I can force the deflection.

06:06

So, in this pipe, in your pipe parts list, if I go to Pressure Network and I got to Parts List and I go to 12-Trunk,

06:14

I will click Edit and I go to my Pressure Pipe and I go to my 12-inch pipe and I choose Edit on it.

06:21

What you'll notice in here is there is an allowable deflection.

06:24

That allowable deflection allows me to set a standard for how much this pipe can sweep or change from being perfectly 90 degrees into that fitting.

06:36

And so if I go to the Grip Edits for this pipe, what I can do is I can select this diamond grip right here,

06:42

which if I hover over it, you can see this as deflection.

06:46

I can select this and what Civil 3D shows me is it shows me allowable deflection.

06:50

So, out here at the yellow is my 5 degrees of deflection and then 0 degrees of deflection here in the center.

06:58

So, if I wanted to deflect this out, I could deflect it out to, let's say, that's one, two, three, four.

07:06

So, you could deflect onto 4 degrees and then click here.

07:09

And what you'll see happen is this pipe is now deflecting out this way.

07:13

And if I zoom into this fitting here, you'll see this pipe is coming in perfectly, 90 and flush with the face of this elbow.

07:23

But this one has a little bit of a deflection to it, and that's acceptable within the range of the pieces in my parts list.

07:32

So, now that we've laid this out,

07:35

we're gonna go ahead and move into the next video where we're going to take this network and we're going to put it into a profile.