Chapter 7Chapter 7
Computer-Aided Design and Drafting in
Architecture2D vs. 3D
3 Advantages/ Disadvantages
Intro to CADD & BIM
What is CADD or CAD• CADD-_________________• CAD-__________________• BIM-_____________________• What does BIM require?
Architectural Software Packages
Autodesk• AutoCAD• REVIT• Revit MEP, Structure• 3DS max• Civil 3D
ArchiCAD Google Sketch Up SoftPlan Chief Architect MacDraft Pro
What can CAD never replace?
The computer aids in the design process, but creativity remains with the designer
Spend time planning before using the computer
Repetitive tasks are handled more effectively• Copy and Paste• Minor Changes to plans• Symbols and Blocks• Scaling• Stretching• Layers• Revisions• Editing
Advantages of CAD? Time needed for
creativity is increased• Research in field• Walking jobsites• Parade of Homes• HBA meetings
Work is more accurate Layers are used so
several designs can be seen together
The future is here today with CADD
Virtual software is used to give the appearance of reality• Walk through shows the building through a camera• Fly through shows the building like actually walking through
it.
CAD in Architecture
http://vodpod.com/watch/1937089-city-creek-project-downtown-salt-lake-city-virtual-tour
What different views or drawings are used?How is this architecture being used?
How work in Architecture is Accomplished
Work can be shared through a local network or over the Internet
Communication is key to design coordination Files can be easily updated and managed from
remote locations• Redlines outsources to India
CADD SymbolsInserted as blocks
Unique CADD symbols can be created by using the BLOCKS or WBLOCKS command
AutoCAD’s Design Center and Tool Palettes conveniently store symbol libraries
CADD Graphics Conventions
Line color – aid in clarity and visualization and layer management
Text Fonts – closely represent an artistic style found in many manual drawings• Stylus BT• Archstyle• City Blueprint
U.S. National CAD Standard Group of agencies develop a single CADD standard for the U.S.
• U.S. National CAD Standard (NCS)- Allows consistent and streamlined communication
among owners, architects and designers, and construction teams
- Can result in reduced costs- AutoCAD and MicroStation were selected as primary
applications
Uniform Drawing System Construction Specifications Institute (CSI)
• Uniform Drawing System modules- Standards, guidelines, and other tools for organizing
and presenting architectural information- Based on flexibility, consistency, and linking- Provides a framework for facility model- Adopted by the U.S. National CAD Standard
Drafting Conventions Provide a standard format for graphic and text content on
drawings• NCS conventions include guidelines for:
- Consistent drawing placement- Consistent orientation of dimensions, line
representations, and drawing scales• NCS defines scale as:
- Ratio of measuring units expressing a proportional relationship between a drawing and the full-size item
Drawing Scales:Floor Plans =Roof Plans=Elevations=Interior Elevations=Full Sections=Wall Sections=Stair Details=Details=
CADD Graphics Standards
Terms and Abbreviations• CLG• SH• SL• WIC• AFF• DW• MW• NIC
Notes• General notes• Notes• Keynotes
Architectural draftingA graphic language made up of features
Line weights and typesText styles and fontsDimensioningTerms and abbreviationNotes on drawingsArchitectural CADD symbols
What does a Residential Drawing Set look like?Our Set will look like this:
• Electrical/ HVAC Legend .dwg• Main Level . Dwg• DGET 1360.dwt
• 00- Site Plan• 01-Basement Floor Plan• 02- Main Floor Plan• 03-Front & Right Elevations• 04- Rear & Left Elevations• 05- Roof Plan• 06- Interior Elevations
A. FireplaceB. Kitchen 1-4C. Main BathD. ½ BathE. Master Bath
• 07-Furniture Plan• 08- Electrical/ HVAC Plan