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

Conceptual Design and Early Studies

Getting Site Data and Building the Context Building the 3D Context Program Check and Feasibility Building Maker Massing Best Practices Using Imported Geometry from Other Applications for Massing Using Smart Relationship between Building Mass and the Underlying Mass
Program Check and Feasibility
Many of the activities in early design revolve around exploring the commercial viability of the site and figuring out the right mix of uses (for example, residential versus office versus retail). All these uses have different economic returns. Zoning regulations can be complicated in how they allow dif-ferent amounts of total development based on the mix ratio. In essence, two numbers govern almost all urban property: Floor Area Ratio (FAR) and Lot Coverage Ratio (LCR). FAR is a number that says how many multiples of the site area the building area can be. LCR specifies the percentage area of the site that can be covered by the building footprint. Usually the architect is required to maxi-mize the FAR by determining the right mix of uses placed at the right location on the site. At this stage, the problem is not only about forms or shapes but about the program, construction costs, and rents and the functional distribution on the site horizontally and vertically. The architect usually attempts to determine what physical forms, in what location, with what use, will provide the best economic return to the owner. This study then needs to be consolidated and documented. While studying this problem, the architect may generate tens if not hundreds of slightly different alternatives for numerical comparative purposes. A few of the most promising are then developed further for presentation purposes. At early stages in design, you need to check the program and how well you fit into it. Programs can be less or more precise, depending on the client and the task in question. It can be as bold as 15,000 sq. ft. (4570 sq. meters) offices, 40,000 sq. ft. (12,200 sq. meters) hotel space, and 20,000 sq. ft. (6100 sq. meters) retail space for a bigger complex; or it can be an exact number of rooms and spaces when working on one building. Figure 8.6 shows an early massing study annotated to show usage and areas.

Figure 8.6 Early study docu-menting maximum allowed heights and total square footage of a proposed solution
The architect is constantly thinking about architectural expression, fitting in the site, and accom-modating the program. They’re also evaluating whether the client’s requirements can fit the allowed buildable area and height of the site, zoning regulations, land uses, traffic requirements (they usu-ally always want more), and information about the number of parking spaces and other support functionalities. This phase of the project can also involve shadow studies and energy modeling, as discussed in Chapter 14. The next step is to propose multiple solutions to the client, so proposals with different mixes of functions and spatial solutions can be reviewed and analyzed. This is where the Design Options tools you’ll learn about in Chapter 9 come in handy.
Creating Multiple Massing Design Options Here is a suggested workflow based on a real-world use case. The architectural firm Gensler created an option set with three options, each with a distinct name. Theyduplicated 3D views and schedules to document project information early on. In each view, the Visibility/Graphic Overrides were set to display each option (one set to Option 1, another to Option 2, and the thirdto Option 3). Doing so not only visually described the new option but also presented the data behindeach design.