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

CAD Layers

Divide layers among unique features• Name• Color• Line type• Line weight• Plot Y/N

Why should I use layers?

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

Common symbols increase design productivity

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

CADD Graphics Standards

CADD symbols/ Hatching• Reference symbols• Object symbols• Material 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

What does a CAD template have?Homework create template:

LayersText Styles

Dimension Style

• Arch C template .dwt- Title block- Border

• Drawing Template- Symbols- Blocks- Limits