Grids are like levels in that we can add elbows, and bubbles and they can count (grid 1,2,3). But grids do a lot more. When we lay out a grid system, we are providing a point system for our columns. When we place a column on a grid location Revit propagates that coordinate into the properties of the column.
- [Voiceover] The cornerstone of any solid Revit structural model is gonna be your structural grids. We can put those in many ways into Revit, but I wanna show you how to just put them into a blank model, then show you how structural grids are comprised. Under Projects, let's just go New. I'm gonna use my Structural Template and I'm gonna click Okay. Now under Structure, I wanna go down to my Datum panel, and I wanna click my Grid button. I'm just gonna pick a point like right about here, and I'm gonna come straight down to about here and I'm gonna hit Escape a few times.
If I go down the Column Line One, we'll see that it's Column Line One. Very similar to Level, I can select my grid, and I can actually turn on the bubble on the top of it. Again similar to the Level, I can click on my Add Elbow, and I can jog this around and put it anywhere I basically want. Down on the bottom, there's a one. Up on the top there's a one. Let's make a few more, I'm gonna select my Grid Line One, I'm gonna click Copy, I'm gonna select it, now I'm gonna move down about 25 feet.
I'm gonna type 25 and hit Enter. Now if you had trouble with that, I wanna undo it. Select Grid Line One again, click Copy, click Constrain, now click Multiple. Now I'm gonna select my grid line, now let's go 25 feet, and if you keep going to the right you'll make a new grid line, 25, let's make Grid Line one through five. 25, and then one more 25; excellent. Hit Escape a few times, got it.
Now I wanna make a new horizontal grid line, so I'm gonna select Grid Line One, I'm gonna right-click, and I'm going to Create Similar. I'm gonna pick a point right here, I'm gonna pick a point right about here. Revit wants to keep sequentially numbering it, it doesn't realize we've made a horizontal grid, so we have to tell it that we want this to be Grid Line A. So I'm gonna select the six, and I'm gonna type in an A. One thing that you cannot do, if you select Grid Line A now, click on it and type in a one and hit Enter, Revit's not gonna let you do that.
The name entered is already in use, enter a unique name. This is important, especially if you think you're gonna have two buildings in one model. It's very hard to do that because of the fact that you can't have two Grid Line A's, you can't have two Level One's. So remember that. I'm gonna hit Cancel, and I'm tired of turning on this bubble down here, so I'm gonna select my grid line, I'm gonna click on Edit Type, and my Plan View Symbol Ends One I'm gonna turn on. I'm gonna click Apply, I'm gonna click Okay.
Now I'm gonna select Column Line A, I'm gonna copy this down five times so click Copy, Base Point, let's go 25, let's go 25, 25, and then 25. Now hit Escape a few times, now notice when I select Grid Line One, I can move it up and down and the entire column moves along with it. Now let's look a little deeper at this grid line, I'm gonna select Grid Line B here, then I'm gonna click Edit Type.
Now what I wanna do is my symbol, we'll notice that we can have the same kind of thing, Grid Head Circle, Grid Head No Bubble, again this is an exterior family that we're gonna load into our project, we can change this however your company standards are. Center Segment, instead of Continuous, I'm gonna go with Custom, now we can have a center segment weight, we can have a different color, a pattern, we can have different Plan View symbols. If we go None, that means it's gonna break it in the middle, and segment lengths are six feet, we'll see how that works.
I'm gonna click Apply, I'm gonna click Okay, now if I select this, and I click on one of these grips, I drag that grip back, and I click off of it, notice that I can gap that center line segment. One other thing about grid lines which is really cool is if I go to my south elevation, we'll see our grid lines are showing up. But I'm gonna create a new level, I'm gonna select Level Two, I'm gonna right click and Create Similar, on my drop panel I'm click on Pick Lines, and I'm gonna offset that 25 feet.
I'm gonna go up 25 feet. Notice that it's above our grids. I'm gonna go to Level Three by zooming in on it and double-clicking on the datum, notice that we cannot see our grid lines. This is because those didn't go up to Level Three, Revit is very literal. So I'm gonna go back to my south elevation, I'm gonna zoom out, I'm gonna grab my Grid Line Five, and I'm gonna drag it up. So not only do we see grid lines on Plan, but we also see grid lines in Elevation.
If I go down to Level Three, now we'll see these Grid Lines. If I go to my west elevation, I would need to do the same thing. So think about it, Revit's a 3-D program. Even the 2-D items that we're putting in have 3-D effects on everything. Now if I go back to Level Three, all of my grid lines are here. One other thing that we can do, if I select one of my grid lines, notice that we can Propagate Extents. So basically if I cut this grid line up, or if I make it weird, I can Propagate Extents, and I can go to other plan views that it might not be showing up in.
I'm gonna hit Cancel here, one more thing, I'm gonna go to my Structure tab and I'm gonna click Column. I'm just gonna zoom in here, and for my column, I'm gonna go with my Height as Unconnected, and I want to put my column right here. I'm gonna hit Escape a couple times. Now what I'm gonna do is I'm gonna select that column. Notice that the Column Location mark is set for B-two. So we know that B-two is our column grid intersection.
So Revit understands not only the column, in Plan and Elevation, but it understands what these intersections mean too. And also if I select the column, it rotates with our grid. So if I was to select my grid line, and rotate it, my column's gonna rotate along with it. If you hit Escape a few times, that's pretty much Grids in a nutshell.
Once you're finished with this course, you can feel confident taking the Revit Structure 2015 Certified Professional exam.
- Creating and modifying levels
- Importing AutoCAD files
- Linking models
- Modeling columns, walls, floors, beam systems, roofs, stairs, and ramps
- Adding and editing text annotations
- Using dimensions
- Creating schedules and standard sheets