Creating Spiral Stairs in Advance Steel is easy as 1-2-3. You just define its center point, height, and the outside radius value. It is as easy as it gets.
The other option is that you can specify the first or last step while specifying the parameters of the spiral stairs.
You can create also handrails for your Spiral Stairs.
Note: If you want to create Straight Stair rather that spiral stair check out the Straight Stair Tutorial here.
Table Of Contents
Accessing the Spiral Stairs Tool
You can access this tool in the Extended Modeling ribbon tab:
Extended Modeling tab > Structural Elements panel > Spiral Staircase
Launching the Spiral Stairs Tool
When you start the Spiral Stair tool, you will be asked to specify the center point of the spiral. Once this point is established, the next parameter which you need to show the is the point which will define the height of the spiral in the +Z direction. Then you will be asked to define if you want to specify the first or last step, you can press ENTER to skip this step. When you have the height defined, the last thing is to define the direction and outside radius of the spiral. Once you have responded to all the questions of the Spiral Stair tool, the stair will be created and the dialog box will open giving you a chance to fine tune your brand new Spiral Stair.
Spiral Stairs Tool Dialog Box
Column & Stringer Category > General Properties Tab
Outside Radius of the Steps
You can override the outside radius value specified while creating the stair.
Inner Radius of the Steps
This option is only available when the Create Central Post option is cleared in the Central Post Tab. Then you can specify the inner radius of the steps.
Stair Direction
Specify if you want your stair direction to be clockwise or counterclockwise.
Rotate Entire Stair
You can rotate the entire staircase by a specified angle value.
Total Angle of Stair
Define the total angle of the Spiral Stair. The Height of the Rotation edit box is linked to that edit box, resulting the change in the stair height.
Height of the Rotation
Specify the height of one rotation of the spiral stair here. This value is linked to the value in the Total Angle of Stair.
Column & Stringer Category > Central Post Tab
Define whether or not the central post should be created. If you decide to create the central post, you can define the section and lower and upper offsets:
Column & Stringer Category > Cover Plate Tab
Specify if you wish to place the cover plate on the top of the central post. Specify all the details of the plate here.
Column & Stringer Category > Stringer Tab
Define the stringer parameters here:
Create Stringer
Check this box If you want to create the Stringer.
Stringer Section Type
Define the stringer profile here.
Stringer Offset Settings
Define if the stringer offset value should be calculated along the slope of the staircase, in the vertical or horizontal direction.
Stringer Offset Value
Offset the stringer here. The direction of the offset is based on the option selected from Stringer Offset Settings described above.
Precision for Outer Stringer
Enter the value for the precision of the outer stringer.
Central
Only avaliable when you are not creating the central post. You can specify the type and size of the central stringer.
Precision for Inner Stringer
Enter the value for the precision of the inner stringer.
Note:
The other options are similar to the options of the Stair described in the Stair Tutorial here.
