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Chapter 9. Stairs and Railings. Objectives. Use the Stair command (StairAdd) to create Straight, Multi-landing, U-shaped, U-shaped Winder, and Spiral stairs. • Create a stair tower in a project and a custom stair.
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Chapter 9 Stairs and Railings
Objectives • Use the Stair command (StairAdd) to create Straight, Multi-landing, U-shaped, U-shaped Winder, and Spiral stairs. • Create a stair tower in a project and a custom stair. • Constrain the number of risers, tread size, riser size, and run of a stair using Calculation Rules. • Edit the style, shape, turn type, width, height, and justification to create stairs. • Identify the purpose of grips located on various stair shapes. • Create, edit, import, and export stair and railing styles using the Style Manager or Content Browser. • Control the visibility of the lower or upper portions of stairs using the display properties. • Modify the stair edge with the following Customize Edge options: Offset, Project, Remove Customization, and Generate Polyline. • Anchor an isolated stair to a stair landing and anchor a railing to an AEC object. • Use the Railing command (RailingAdd) to create railings that are freestanding, attached to stairs, and attached to stair flights. • Create railing styles.
Creating a Stair Construct • Create the stair in a construct drawing that spans multiple levels • Attach floor plans as reference to the stair construct • Stair is displayed in the view drawings for each floor served by the stair • Create the stair construct drawing in the Project Navigator
Basic-General Description Style Shape-U Shaped, Multi-Landing, Spiral, Straight Turn type Horizontal Orientation Vertical Orientation Dimensions A-Width B-Height Justify Terminate with Calculation Rules Straight Length Riser Count Riser Tread Riser/Tread Calculation Advanced-Floor Settings Top Offset Bottom Offset Flight Height Minimum Limit Type Minimum Height Minimum Risers Maximum Limit Type Maximum Height Maximum Risers Interference Headroom Right Clearance Worksheets Components Landing Extensions Stair Properties Content
Insert U-shaped Stair Flight start point or: (Select p1) Flight end point or: (Select p2) Flight start point or: Escape
Setting Stair Dimensions • A-Width-specifies total width of the stair • B-Height-specify finish floor to finish floor distance • Justify-specify the handle to insert the stair • Calculation Rules button opens the Calculation Rules dialog box to control A-Stair Length, B-Riser Count, C-Riser, and D-Tread. • Calculation Rules can be set to Automatic or Manual
Flight Height • Minimum and maximum limits can be set for a stair flight. • Control of stair flight based upon: • Height of flight • Number of Risers • Landing is placed in stair when flight exceeds maximum flight
Interference • Specify a headroom distance, walls and other AEC objects cut to provide headroom. • Left/Right Clearance value cuts AEC objects around the four sides of the stair
Worksheets • Components and Landing Extension buttons opens the Stair Components and Landing Extensions dialog boxes • Dialog boxes are inactive if Allow Each Stair to Vary is toggled OFF in the Stair Style
Multi-landing Stair • Flight start point or: (Select point p1 as shown above.) • Flight end point or: ( Select point p2 as shown above.) • Flight start point or: (Select point p3 as shown above.) • Flight end point or: (Selectp4 as shown above.)
Placing a Spiral Stair • Select center of stair and start point to place spiral stair • Horizontal orientation- clockwise or counterclockwise • Arc Constraint-free, total degrees, or degrees per tread • Arc angle-total angle of stair sweep
Edit Edges Grips • Flight taper grip • Flight width • Vertex • Edge • Landing Width
Grips of Multi-landingEdit Edges toggled Off • Lengthen Flight • Flight Start • Move Flight • Turn Point • Lengthen Stair • Move Multi-landing
Customizing Edge of Stair • Use StairOffset to Offset edge of stair a specified distance • Project edge of stair to a wall or polyline, shown at left • Remove Customization of an edge • Generate a polyline from the edge
Edit an Existing Stair Style • Select stair, right-click and choose Edit Stair Style
Stair Display Control • Override Display Configuration Cut Plane check box is clear for the Standard stair style • Display configuration settings display the lower half of stair and turn off the display of the upper half • Plan Intermediate Level display representation is intended for display of stair tower for floors between the first and top levels. • If Override is checked, the stair is displayed independent of the display configuration cut plane. The stair components are turned on or off in the Layer/Color/Linetype tab of Display Properties
Custom Stair • Select a stair and choose Convert from the Custom Stair panel • Select a stair, right-click and choose Convert to Custom Stair.
Edit Tread/Riser of Custom Stair • Edit Tread/Riser activates grips which allow the edit of each tread or riser.
StairToolToLinework Command • (Right-click a stair tool and choose Apply Tool Properties to>Linework.) • Pick left and right sides: (Choose arc at p1 • Pick left and right sides: (Choose arc at p2l • Pick left and right sides: (Press ENTER to end selection.) • Select stair path: (Press ENTER to choose Automatic path.) • Select user defined left stringer path<use left side>: (Press ENTER.) • Select user defined right stringer path<use right side>: (Press ENTER.) • Select user defined center stringer path<use stair path>: (Press ENTER.) • Select first tread at current level: (Select the line at p3.) • Select remaining treads: (Select the line at p4.) • Select remaining treads: (Select the line at p5.) • Select remaining treads: (Select the line at p6.) • elect remaining treads: (Select the line at p7.) • Select remaining treads: (Select the line at p8.) • Select remaining treads: (Select the line at p9.) • Select remaining treads: (Select the line at p10.) • Select remaining treads: (Select the line at p11) • Select remaining treads: ENTER (Press ENTER ends tread selection.) • (Edit the Convert to Stair dialog box. Check theErase Layout Geometrycheck box.)