2.2.7- Create the interior stair up to the ground floor
In this lesson you will create the interior ground floor stair, this is a multi - landing stair with 1/4 turn, starting from the ground floor and leading up to the first floor.
The total height between ground floor and first floor is 3.20 (m) and the number of steps is 17. The position of the stair on the ground floor plan, its shape and dimensions are shown in Fig. 188.8.131.52.
Open with AutoCAD Architecture the drawing, you created in the previous lesson, under the name h21190_groundFloor_openings, or if you wish you can download it by clicking here, unzip and open it.
Create the stair
This stair is a multi - landing stair with 1/4 turn stair. To design it you will use from the Design Tool Palette (Fig. 184.108.40.206), the type of stair called Concrete.
If there is not this type of stairs in 'Design Tool Palette', you will get it from the Content Browser.
To do this, open the Content Browser:
• On Ribbon > Home tab > click on Tools > and select Content Browser (Fig. 220.127.116.11).
• On the Content Browser which will open, select > Design Tool Catalog > Stairs and Railing > Stairs (Fig. 18.104.22.168) > select the Concrete Stair and drag it with your mouse on the Design Tools Palettes.
- On the ground floor plan, draw the polyline (P1P2P3P4P5P6P1), according to the dimensions shown in Fig. 22.214.171.124, it is the footprint of stair as it is to be placed.
- Select polyline, right-click on it, and at it's properties, set it's elevation value to 0.00.
You will create the design of the stair using the stair style "Concrete" that you'll get from the Design Tool Palettes or from the Content Browser.
The stair will be designed with the qualities of the type of stair you choose on the design tool palette, and in accordance with the treatment you will do on its properties.
You can edit anytime the properties of the stair in the Properties Palette (Fig.126.96.36.199).
Design the stair.
- Open the Design Tool Palette, click on the stair style Concrete (Fig. 188.8.131.52), the Properties Palette of this stair will open (Fig. 184.108.40.206), where you can modify the values according to your needs. (Alternatively, on Ribbon press the Home tab >Build panel > Stair drop-down > Stair).
- On the Properties Palette (Fig. 220.127.116.11) on category General, make sure that style is set to Concrete.
- For Shape select Multi-landing, for Turn type select 1/4 turn, for Vertical Orientation select Up.
- On category Dimensions, set the values, for Width to 0.90 (P1P2 = 0.90 m), for Height to 3.20, select Right for Justify, select Tread for the 'Terminate with'.
- Click on Calculation rules tab > Riser cound and tread field, to open the Calculation Rules dialog box, and set all fields to automatic by turning the icons to (Fig.18.104.22.168).
- Specify the total number of stair risers: Click on the B - Riser count the icon , to change it to (user-defined) icon, and type the value 17 for the Riser Count (Fig.22.214.171.124).
When Riser Count is set to (user-defined), you can specify a value that is used to calculate the tread depth and riser height.
If these values fall outside the stair limits, an error message is displayed.
Specify the tread depth of each tread in the stair flight: Click on the D -Tread icon, to change it to user-defined , and enter the value 0.25 for the Tread. Click OK.
- At the prompt "First Star Point: select point P1.
- At the prompt "Flight End Point: select point P2.
- At the prompt "Flight End Point: select point P3, and click ENTER.
The stair has been created as shown in Fig. 126.96.36.199. Right-click on the stair, to appear it's properties palette.
Create a 3d Conceptual view
- Click on the corner WS of View Cube icon to get a 3D isometric view of your project or select the 'Top' from the View Cube to get a floor plan of your project.
- You can apply Conceptual view in your plan to have a more artistic view (Fig. 188.8.131.52). To do this:
- On Ribbon > click on View tab > select Visual panel > select Conceptual
- To have a better three-dimensional picture of the stair, you can hide some of the walls that hide the stair.
- To do this: Select the walls you want to hide - in this example you will hide the wall (bg)- click Isolate Objects (the icon that looks like a light bulb in the bottom right corner of your screen and choose Hide Objects.
The wall (bg) will be hidden and your drawing will be as shown in Fig. 184.108.40.206.
- To make the wall to reappear, right click on the screen that displays your design, in the window that opens select: Isolate Objects > End Object Isolation.