The facts and fallacies about BIM

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The facts and fallacies about BIM

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The Facts and Fallacies About BIM

Construct Canada 2011

Shafee Ahamed, MA Sc

Researcher

National Research Council

Presentation Outline

Slide 2 The Facts and Fallacies About BIM

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Presentation Takeaway

Presentation Outline

What is BIM?

What should I know about BIM?

Why should I stay tuned to the

BIM world?

Current status of BIM in

Canadian construction industry

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What is BIM

• For the Architect:

o

BIM ‐ Building Information Modeling

• The Engineer:

o

BIM ‐ Building Information Management

• The Owner:

o

BIM ‐ Building Information Maintenance

• The Idealist:

o

BIM ‐ Building Information Masterpiece

• For the rest of us:

o

BIM ‐ Building Information Migraine

Definition(s) of BIM

Slide 6 The Facts and Fallacies About BIM Plan Pre-design Detail design Construction Operate B u ild in g L if e C y c le B u ild in g L if e C y c le Building Information Modeling is the process of generating and managing building data during its life cycle O w n e r s BIM covers geometry, spatial relationships, geographic information, quantities and properties of building components V e n d o r s BIM is a single integrated model representation from which consistent drawings & reports are generated AEC Users

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BIM Definition

Slide 7 The Facts and Fallacies About BIM Extract from: The Associated General Contractors of America, BIM education program.

“A digital representation of physical and functional

characteristics of a facility that has shared knowledge

resource for information about a facility, forming a reliable

basis for decision during its life‐cycle; defined as existing

from earliest conception to demolition. A basic premise of

BIM is collaboration by different stakeholders at different

phases of life‐cycle of a facility to insert, extract, update or

modify information in the BIM to support and reflect the

roles of that stakeholder.”

By: National BIM Standards

“A digital representation of physical and functional

characteristics of a facility that has shared knowledge

resource for information about a facility, forming a reliable

basis for decision during its life‐cycle; defined as existing

from earliest conception to demolition. A basic premise of

BIM is collaboration by different stakeholders at different

phases of life‐cycle of a facility to insert, extract, update or

modify information in the BIM to support and reflect the

roles of that stakeholder.”

“A digital representation of physical and functional

characteristics of a facility that has shared knowledge

resource for information about a facility, forming a reliable

basis for decision during its life‐cycle; defined as existing

from earliest conception to demolition. A basic premise of

BIM is collaboration by different stakeholders at different

phases of life‐cycle of a facility to insert, extract, update or

modify information in the BIM to support and reflect the

roles of that stakeholder.”

“A digital representation of physical and functional

characteristics of a facility that has shared knowledge

resource for information about a facility, forming a reliable

basis for decision during its life‐cycle; defined as existing

from earliest conception to demolition. A basic premise of

BIM is collaboration by different stakeholders at different

phases of life‐cycle of a facility to insert, extract, update or

modify information in the BIM to support and reflect the

roles of that stakeholder.”

By: National BIM Standards The Facts and Fallacies About BIM Slide 8

What is BIM?

BIM as noun BIM is an unambiguously defined digital representation of the physical and functional characteristics of a facility. The representation is composed of digital objects corresponding to real world components such as doors, walls, and windows with associated relationships, attributes and properties. It mainly contains: • 3D Geometry • Attribute data

B I M

as A

N O U N

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click The Facts and Fallacies About BIM Slide 9

What is BIM?

BIM as verb BIM is any process used to create, manage, derive and communicate information among stakeholders at various stages using models created by project participants at different times for different purposes to ensure quality and efficiency throughout the lifecycle of the construction process. It mainly deals with: • Managing • Communicating

B I M

as A

V E R B

BIM vs. CAD

CAD

• Changed the tools

• Raw data, less

intelligence

• Most elements are

standalone

• Many decisions will wait

until CD’s are created

BIM

• Changed the process

• More hidden data, more

intelligence

• All elements are tightly

integrated

• Earlier decisions

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BIM vs. CAD

11 The Facts and Fallacies About BIM Building Information Modeling (BIM) Computer‐aided Design (CAD) Modeling methodology Interference checking Process vs. tools Creation of shop drawings Slide 12 The Facts and Fallacies About BIM References: buildingSMART: An approach to BIM and IPD What does BIM mean for Civil engineers, by: Adam Strafaci, CE News October 2008 http://hokrenew.com/2010/02/09/bim‐bam‐boom‐how‐to‐guarantee‐greener‐high‐performance‐buildings/ Risk Gap / risk shifting Owner Architect cotnractor http://www.building‐connections.info/news/4%20Patrick%20MacLeamy.pdf BIM Handbook: A guide to Building Information Modleing for Owners , Managers by Chuck Eastman et al. Page 198, Chapter 5

BIM vs. CAD

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BIM vs. CAD

Abstract from : Journal of Engineering Science and Technology Review, 2(1) (2009) 165‐169 Task Hours Saved (*) Time Savings Schematic 100 53% Design Development 216 50% Construction Documents 208 20% Checking Coordination 159 91% Total 683 Slide 13 The Facts and Fallacies About BIM * Hours saved = (CAD hours – BIM hours)

Why BIM

Contract for design, construct and operate

Design, construct and maintain

U.S. Government seeks sources to design, construct and maintain

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Why is BIM Important?

Use of BIM

3D modeling & visualization Design review

Interference checking Use of data for analysis Coordination Sustainable buildings Marketing Design documentation

Architects

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Use of BIM

1

Engineers

3D modeling & visualization Energy analysis

Structural analysis HVAC & MEP Interference analysis

Image courtesy: Smith Carter Architects and Engineers

Use of BIM

18 The Facts and Fallacies About BIM

Contractors

3D modeling & visualization 4D (3D + time) 5D (4D + cost) Phasing Prefabrication Rebar design Constructability Construction management Quantity estimation Shop drawings

Use case of BIM:

Sub-trade contractor

(concrete)

Use case of BIM:

Sub-trade contractor

(concrete)

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Image sources: autodesk.com, cadalyt.com

BIM (n)

Use of BIM

BIM (v)

Sequencing

Interference

Estimation

Concrete lift

drawings

Specific views for

multiple pours

Formwork

drawings

To Architect: 3D visualization Multiple configurations Space planning Better coordination Interference checking Documentation

Use of BIM

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Current Status of BIM

• Design visualization • Design and construction process review • Spatial coordination / interferences • 4D scheduling and sequencing • Site planning and site utilization • 5D cost estimation • Scope clarification (who does what) • Analysis • Integration • Prefabrication • Facility operation and maintenance • LEED certification • Sustainability Slide 21 The Facts and Fallacies About BIM

Value of BIM During Life Cycle

Design • 3D visualization • Collaboration • Bidding • Marketing • Integrated design and analysis • 3D visualization • Estimating • Sequencing • Scheduling • Process simulation • Rebar and form

drawing • Shop drawings • 3D visualization • Asset management • Space management • Maintenance management • Energy conservation • Emergency preparedness • Fire evacuation • Monitor • Maintenance schedules • Warranties • Performance • Component and equipment list • Disassembly process • Scenario planning Occupant Demolish Recycle & Demolish Operate Maintain Build Architect Slide 22 The Facts and Fallacies About BIM Project handover DOC DOC Contractor Facility handover DOC Facility Facility Manager DOC CAD Design handover Monitor & control M&C M&C

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Key Elements of BIM

COMMUNICATION

C

COORDINATION COLLABORATIO N Slide 23 The Facts and Fallacies About BIM

BIM Tools

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BIM Support Tools

B I M P r o c e s s

B I M

&

3 D

B I M

&

3 D

P M

Vendors Autodesk Bentley Graphisoft Nemetschek Trelligence Google AutoDesSys Software Revit 2011 V8i Suite Archicad 15 Vectorworks Affinity SketchUp bonzai3d New Products Utility design, Infrastructure Modeller V8i suite, Projectwise, FIM, iware EcoDesigner, Artlintis, BIMx Architect, Spotlight, Sica Extending BIM & Interoperability SketchUp Pro, Google Building Maker Form Z, RenderZone

Data Exchange

Database Sensors Analysis Data Cost DWG DWF IFC COBie RCC XML PDF ODBC CIS/2

ODBC Open DataBase Connectivity PDF Portable Document Format RCC Richard Creveling Consultants XML eXtensible Modeling Language ODBC Open DataBase

Connectivity PDF Portable Document Format RCC Richard Creveling Consultants XML eXtensible Modeling Language

CIS/2 CIMsteel Integration Standards

COBie Construction Operations Building information exchange IFC Industry Foundation

Class

CIS/2 CIMsteel Integration Standards

COBie Construction Operations Building information exchange IFC Industry Foundation

Class S T A N D A R D S

DWF Drawing Web Format DWG DraWinG, Proprietary

Format, Autodesk DWF Drawing Web Format DWG DraWinG, Proprietary Format, Autodesk V E N D O R S O T H E R S Slide 26 The Facts and Fallacies About BIM

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BIM Implementation Process

Swiss Army Knife Syndrome

BIM represents the information

related to a building/facility, not

what you do with the information

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BIM Facts and Fallacies

Slide 29 The Facts and Fallacies About BIM BIM – paradigm shift BIM – for tech savvy people BIM – for high volume business BIM – wait and see BIM – improves delivery and coordination

BIM Facts and Fallacies

Slide 30 The Facts and Fallacies About BIM BIM ‐ is one single model that is created, accessed and used by project participants throughout its lifecycle. BIM ‐ is a process of creating, using and managing models that are created by different project participants at different times for different purposes during its lifecycle. BIM ‐ is risky BIM ‐ implementation is cumbersome and complicated BIM ‐ loss of productivity BIM ‐ too complex to understand and interpret BIM ‐ established workflows to be replaced with new one BIM ‐ owners get more benefit

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R O I

Slide 31 The Facts and Fallacies About BIM T I M E PR O D U CT IVI TY A B C D

R O I

Slide 32 The Facts and Fallacies About BIM Direct savings: Collision detection Visualization 3D constructability/4D scheduling/5D estimation Indirect savings: # of people in attendance # meetings Variables: •Cost • Hardware and software • Labour •Time • Training •Productivity • Lost • Gain

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BIM RISKS

Slide 33 The Facts and Fallacies About BIM R I S K n (D) 1D 2D 3D 4D 5D C A D

C A D B I M B I M

BIM Present and Future

i. Promotion of the Technologies ii. Education and Training iii. Guides and Best Practices