Revit Architecture 2008

Autodesk Revit Tutorials, Revit Families, BIM Revit

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Home CHAPTER 1 Intrduction What to expect from BIM Where can you go from here The bottom ine CHAPTER 2 Introduction Working with Revit Parametric Elements The Revit User Interface Using the Project Browser The Bottom Line CHAPTER 3 Introduction Selecting, Changing, and Replacing Elements Editing Elements Interactively Other Useful Tools The Bottom Line CHAPTER 4 Introduction Starting a Project with a Custom Template Settings for Graphic Consistency Creating Custom Annotation Tags Creating Custom Title Blocks Creating a Custom Title Block with the Family Editor The Bottom Line CHAPTER 5 Introduction Wall Types Floor and Roof Types Ceiling Types Door and Window Types Stair Types Types and Type Catalogs Graphic Overrides of Host Objects with Complex Structure Additional Global Project Settings The Bottom Line CHAPTER 6 Introduction Modeling with Revit Principles of Modeling in Revit Where Can You Go From Here? The Bottom Line CHAPTER 7 Introduction Massing Studies The Bottom Line CHAPTER 8 Introduction Conceptual Design and Early Studies The Bottom Line CHAPTER 9 Introduction Revit Design Options The Bottom Line CHAPTER 10 Introduction Modeling Parametric 3D Families Choosing the Right Family Template Types of Families Smart Workflow: Nesting One Family into Another Parametric Arrays in the Family Editor Encoding Design Rules Building a Parametric 3D Family The Bottom Line CHAPTER 11 Introduction Basic Walls: Advanced Modeling Techniques Curtain Walls: Advanced Design Techniques Roofs Roofs and Slabs: Advanced Shape Editing Railings and Fences The Bottom Line CHAPTER 12 Introduction Drawings with Shadows Color-Coded Plans and Sections Elevations That Convey Depth Working with Perspective Views Rendering Creating Animated Walkthroughs Exporting to Other Formats The Bottom Line CHAPTER 13 Introduction Preliminary Design Tools Calculating Areas Schedules Using Schedules for Preliminary Cost Estimates The Bottom Line CHAPTER 14 Introduction Sustainability in Architecture Preliminary Design Tools Tracking Recycled Materials Window Surface Percentage vs. Room Area Energy Analysis The Bottom Line CHAPTER 15 Introduction Annotating Your Views Displaying Information about Rooms Schedule Keys Tags Shared Parameters Text and Keynotes The Bottom Line

Stair Types

Properties of Stairs
In the Element Properties dialog for a stair, you can control the following properties:
Calculation Rules In the stair’s Type Parameters dialog, in the Construction/Calculation rules, click the Edit button to open the calculation rules. To use the calculation functionality, select the option at the top of the Stair Calculator dialog (see Figure 5.12). The calculation rule is based on the universal calculation formula that sets the value that should result depending on the size of the runs and risers. If this value can’t be achieved, it should at least be within the min- imum and maximum range you’ve defined
Figure 5.12 Stair Calculation Options
Extend Below Base This field defines an offset between the base of the stair and the level where it starts. A positive value means the stair starts higher than its base level, and a negative value starts the stair below the base level. The top of the stair isn’t affected by this parameter. This option is needed for conditions where the floor material demands that the stair start a bit higher or lower than the level. Monolithic Stair When this option is selected, it changes the stair into a monolithic form where the stringers, risers, and treads are treated as the same material. This is great for making concrete stairs. Landing Overlap This option is active only when the Underside Of Winder option is selected (see following explanation). Underside Of Winder This option is available only with Monolithic Stairs and has two val- ues: Smooth and Stepped. They represent the treatment of the underside of the stairs, as show in Figure 5.13. Break Symbol in Plan This parameter shows a break line in plan. If it’s selected, the break symbol appears at the cut height of the stair. The part of the stair that is beyond the break symbol (above the cut plane of the view) is shown with special subcategories of stairs: “Stairs beyond cut line" and “Stringers beyond cut line." Each can be assigned a different color and line type. This setting is unique to the rest of the graphics used for the stair. Figure 5.14 shows on the left a stair with visible break symbol and on the right the same stair with no break symbol. Text Size and Font These properties of the text can be automatically added (up and down from the instance properties of the stair).
Figure 5.13 Monolithic stairs with Underside Of Winder set to (a) Stepped and (b) Smooth
Figure 5.14 The same stair with and without the break- line graphic enabled
Material You can set different materials for various components of the stairs. When the Mono- lithic Stair option is selected, some of the options under Material will become grayed out. Minimum Tread Depth This parameter controls the depth of a tread. Once you place a stair in a project, you can set the Actual Tread Depth in the stair’s instance parameters. If this value is less than the type property Minimum Tread Depth, Revit gives you an error message alerting you to the problem. Tread Thickness This parameter controls the thickness of a tread. Nosing Length When this parameter has a value of 0, no nosing is applied to the stair. A pos- itive value for this parameters results in a nosing being exposed on all treads. Nosing Profile This is where you can set the nosing profile that is used when Nosing Length has a positive value. You can create any custom profile for the nosing—the Family Editor includes a Profile – Stair Nosing family template you need to use. Once you have the custom nosing family, you load it in the template (project) and associate it with a certain stair type. Apply Nosing Profile This determines where the nosing profile is placed relative to the tread. The available values are Front Only; Front and Left; Front and Right; and Front, Left and Right. No Back option is available. Maximum Riser Height This field defines the maximum allowed value for a riser. Usually, this setting depends on regulations set in the local Building Code as well as the type of building. Begin with a Riser, End with a Riser These settings control the start and end of the stair and the connection with the landing. Riser Type There are three possible types: None, Straight, and Slanted. As shown in Figure 5.15, this is fairly self-explanatory for the riser. For the slanted type, you can’t define the angle of the slope; that value is a result of the length of the tread and the profile of the nosing. Riser Thickness This value defines the thickness of the riser material.
Figure 5.15 Riser types: left to right, (a) no riser, (b) straight riser, (c) slanted rise with value 1. (2 cm) for nosing, (d) slanted riser with value 1.5. (3cm) for nosing
Riser to Tread Connection There are two options: Extend Riser Behind Tread, as shown on the left; and Extend Tread under Riser, as shown on the right
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Trim Stringers at Top This option controls how the stringer finishes its geometry at the top of the flight (see Figure 5.16).
Figure 5.16 Trim stringer options
Stringer Left/Right This setting provides three options for stringer geometry: None: There are no stringers. Closed: The stringers are placed on the sides of the stair. Open: The stringers are placed below the stair and are cut away by risers and treads. Middle Stringers This option allows you to add one or more stringers below the stair. When more than one is added, they’re evenly spaced. Thickness/Height of Stringers This option gives you dimensional control over the stringers. Open Stringer Offset This option is active only if the stringers are defined as open. This parameter controls the position of the stringer relative to the stair. Stringer Carriage Height This is the value between the stringer height and the treads. The larger the value, the deeper the stringer goes below the treads (the tread position stays the same).
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Landing Carriage Height This value controls the distance between the bottom of the landing and the bottom edge of the stringer