Autodesk 24108-051400-9000 - AutoCAD Revit Architecture Suite 2008 User Manual page 1254

3 Set the size of the interference condition:
If you want to
specify the height above the treads for the interference
condition
specify the left and right side clearances for the interference
condition for straight and multi-landing stairs
specify the inside and outside clearances for the interference
condition for spiral and U-shaped stairs
4 Click in the drawing, not on the stair, to remove the selection.
5 Select the slab to intersect, right-click, and click Interference
6 Select the stair, and press
Creating a slab and stair interference condition
NOTE Changing the Interference values of the stair changes the size of the intersection with the slab.
Removing a Stair Interference Condition from a Slab
Use this procedure to remove a stair interference from a slab.
1 Select the slab from which to remove the interference, right-click, and click Interference
2 Select the stair, and press
Creating an Interference Condition in a Space
Use this procedure to create a stair interference area in a space. When you add an interference condition between a
stair and a space, a box is cut out around the stair based on the specified headroom height and side clearance.
1 Create a stair that intersects with a space. For information about creating stairs, see
Create
1214 | Chapter 25 Stairs
.
ENTER
.
ENTER
Stairs" on page 1135.
Then
enter a value for Headroom height.
enter values for Left and Right Clearance.
enter values for Inside and Outside Clearance.
Add.
Remove.
Using Stair Tools to