Revit Tutorials 1- Getting Started Concepts and Principles

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Autodesk Revit is the most revolutionary architectural product on the market today, offering considerable advantages over traditional CAD software packages. A true parametric building modeler that allows architects to create designs in ways never before possible, Autodesk Revit contains intelligent building components, views, and annotations, all both parametric and bi- directionally associated.

:: Index ::

1. Introduction

2. Administrative Structure and Build-up

3. Navigation and Display

4. Output

Concepts and Principles

Introduction

Within Autodesk Revit, each component is linked through a high performance change propagation engine, allowing a single change in any model view to be propagated throughout all views, both parametrically and bi-directionally. Autodesk Revit gives you the tool that makes more projects happen than ever before!.

Concepts and Principles of the use of Autodesk Revit software can be broken down into the following three areas:

Administrative Structure & Build up

Reference Planes (Datum Lines)

Categories and Sub-Categories

Components Attributes (display controls)

Family Editor

Flexibly

Imported data

Navigation and Display

Views – Plan, Sections, Elevation, 3D

Scale attribute of views

Level of detail

Output

Drawings

Callouts

Perspective Views

Schedules

Administrative Structure and Build-up

Within Autodesk Revit, building levels are defined as planes. Objects are associated to these levels, so that changes to a level’s height automatically propagate changes to the linked objects.

Within Revit, objects are not layered as in traditional CAD packages, but are controlled using subcategories. Not only do you use these for switching components on and off in a view, but also for scheduling quantities and areas from your model.

Revit objects can be displayed at coarse, medium or fine levels of detail. As with traditional CAD, objects can simply be toggled on or off for visibility purposes, or as with Revit family objects be toggled on or off depending upon their viewing direction in Plan, Reflected or 3D with the option of a coarse, medium and fine level of detail, provided greater flexibility.

Within Revit, objects can be defined as mutually dependant (eg doors and windows are dependant on walls), or stand-alone (eg: furniture).

Revit provides the user with the basic building components enabling the creation of a functional Single Building Model. The user has the ability to create their own parametric objects, allowing changes of basic parametric characteristics to be propagated throughout. For example you, the user, have the ability to specify a component such as trussed rafters, allowing the building’s width to be adjusted while Revit automatically adjusts the positions of intermediate members. As such, a building can be taken from schematic concept, to detailed design, including construction documentation, maintaining flexibility throughout the process.

These components are called families and there are several different types. There are System Families, Standard Families, and Families In Place.

A System Family, such as levels, walls and floors, are predefined within Revit. You can modify and define new types by modifying the parameters.

A Standard Family can be created by defining the geometry and parameter in the family editor. Objects such as doors and windows are examples of these. Many different types can be made for this family and used throughout the project.

A Family in Place is created within the project is dependant upon the model geometry. Revit is able to read and import data from a wide variety of foreign CAD packages. Such data

can be used to provide underlays of existing conditions, site information or to link to standard

details. As well as importing foreign data, Revit can export to a variety of industry standard

CAD file formats. such as DXF, DWG and DGN.

Navigation and Display

The Revit project browser displays the model files in a logical tree structure. The browser provides views of your Single Building Model, in plan, sections, elevations, and 3D views.

Drawing view scales and levels of detail are specified individually for each view of the model, enabling, for example a general arrangement drawing of the ground floor plan at a coarse level of detail at 1:500 scale, while a copy of that view could display at 1:50 scale with a fine level

of detail. Within the coarse level of detail (at 1:500), walls would be displayed with a user specified fill style (eg. solid fill), while the fine level of detail (at 1:50) would enable display of

the external cavity walls with all components detailed and appropriately filled / hatched.

Output

The Autodesk Revit “Single Building Model” philosophy enables rapid and efficient progress from the 3D model to begin detailing in 2D to commence creation of the detailed construction documents. 2D detailing may either be standalone or locked to the 3D model. Hence, should a floor level increase in the 3D model, for example, the detail element of a slab junction in the 2D specification would automatically update.

Within Autodesk Revit, we create drawing sheets containing titleblocks, upon which we assemble our various views and call-outs (enlarged details). Schedules are specified as views and can either be displayed on drawing sheets or export as text files to external programs. Three-dimensional shaded, perspective and clipped model views may also be assembled. Once complete, sheets can be output to plotting using standard printer/plotter drivers.