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

Tracking Recycled Materials

In Chapter 13, “Fine-Tuning Your Preliminary Design," we discussed maximizing the power of schedules by adding custom variables to the calculations. We did this by doing a basic cost analysis on the Revit model and calculating a square foot cost against the gross square footage of the build-ing. It is possible to use this same method to track the amount of recycled materials used in the project. In our project, we have decided to substitute a percentage of Portland cement with fly ash in all of the cast-in-place concrete. As a by-product of burning coal, fly ash will help count toward the recycled materials points we need for LEED accreditation. Based on a number of concerns, we have chosen to use 21 percent fly ash in our concrete. We can calculate this very quickly using a simple schedule:
Navigate to View New Material Takeoff and choose<Multi-Category> from the list. In the next dialog box, you will be asked to choose fields for the schedule. Choose the following fields and place them in this order: Material: Name Material: Volume Clicking OK at this point would give us a list of all the materials in the project. Since we want only the concrete, select the Filter tab. Choose Material: Name and then Contains from the Filter By drop-down menu and type Concretein the Filter field (see Figure 14.14). Now, we need to add another calculated value to tabulate our percentage of fly ash in the project. Click the Calculated Value button. Name the field Volume Of Fly Ash. Change Type to Volume and enter the following formula: Material: Volume *0.21 Remember, it is all case sensitive, so make sure you type it right. The finished dialog box should look like Figure 14.13. Click OK
Figure 14.13 Use a formula to calculate a value for fly ash.
Figure 14.14 Set the schedule so that it filters for concrete materials.
On the Sorting/Grouping tab, check the Grand Totals check box. Finally, on the Formatting tab, select Volume and change the alignment to right. Select Volume Of Fly Ash and change the alignment to right. Also, check the Calculate totals box. Click OK.
When the schedule is complete, you will get an up-to-date list containing all the instances of con-crete in the building and a calculation showing how many cubic feet of fly ash each contains. This will all be totaled at the bottom of the schedule. As you can see, we have 6,898 cubic feet (CF) of fly ash so far in our project if we are using 21 percent recycled content (Figure 14.15). Each of these schedules can be added to a template. Even if the percent of fly ash varies from project to project, you will have the basis for the schedule already created.
Finding “Concrete" in the Model Remember, by scheduling things within Revit, you can easily use the schedule to locate them. Simplyhighlight the element within the schedule view. The Options bar will provide a button labeled Show.Clicking this button will cycle you through all of the relevant views showing the element highlighted.This is true for any schedule
Figure 14.15 You can see the total amount of fly ash in the schedule