Lean Construction & Applied BIM - Thomas Strong, Canada EllisDon

Lean Construction & Applied BIMApplied BIM Thomas Strong, g,Director, CanBIMDirector, Virtual Construction, EllisDon

Canada BIM CouncilConseil canadien de la modélisation des données de bâtiment

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Productivity in the Construction Industryy yWHY?...

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Traditional Contract Risk =

Adversarial relationships =

Inefficiencies in the field


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Obstacles in the Construction IndustryyManagement focus is on control and prevents creativityprevents creativity.

Planning is not conceived as a skill rather then a process or system.

Current planning &scheduling does includeCurrent planning &scheduling does include real-time crew level input.

S h d l f i t dSchedule performance is not measured. (quality of the plan, not site progress)

Planning failures are not analyzed to identify and act on root causes.


What is Lean Construction?What is Lean Construction?

Production management based approach to projectProduction management based approach to project delivery.

Work is done throughout the delivery process with theWork is done throughout the delivery process with the goal of maximizing value and minimizing waste.

Trades are at the table to collaborate every step of theTrades are at the table to collaborate every step of the way as the work is planned and scheduled.

The focus is the total project rather then specifyThe focus is the total project rather then specify activities.

Measuring the plan’s performance is critical toMeasuring the plan s performance is critical to improve.

Monitoring Results" vs "making things happen " (Not this…)


Monitoring Results vs making things happen. ( )

Lean Design & ConstructionLean Design & Construction

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Process design and product design are created together.

Optimizing for Pre-fabrication, off-site manufacture & logistics are considered as d i it i


design criteria

Benefits of Lean ConstructionBenefits of Lean Construction

It challenges the belief that there must always be aIt challenges the belief that there must always be a trade between time, cost, and quality

S db i i li i t d f h d liSandbagging is eliminated from scheduling process.

Collaboration is not only the ethical choice but isCollaboration is not only the ethical choice but is also based on aligned commercial interests.

C l ti f th t i t ttiCo-location of the team in open concept setting helps in dissolving boundaries.

Owner has more control of design outcomes vs traditional Design Build.


Multiple Schedule LevelsMultiple Schedule Levels

M lti l l l f h d lMultiple level of schedules are linked thru set of milestones carried from master schedule.

Review road blocks. (Design/ RFI/ Change Order )

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Resources (material, equipment and labour) are committed on

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Number of executed tasks over total number of planned tasks ratio is calculated.

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1. Projects as Collective Enterprise1. Projects as Collective Enterprise

Financial incentives are alignedFinancial incentives are aligned.

Shared gain / Shared painShared gain / Shared pain.

Critical to changing behavior. ion Critical to changing behavior.

Long term outcomes can be onC

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Projects as Collective EnterpriseProjects as Collective Enterprise

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Projects as Collective EnterpriseProjects as Collective Enterprise

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2. Impeccable Coordination2. Impeccable Coordination

FULL coordinationFULL coordination creates predictable workflow within andworkflow within and across trades and disciplines io

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Impeccable CoordinationImpeccable Coordination

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Design Construction Facilities Management

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Typical Coordination & Submission / Approval process

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Typical Coordination & Submission / Approval process

RFIs

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Bulk of RFI process occurs once material is on site, causing rework, delays, costs

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and disputes…

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BIM Coordination & Submission / Approval process

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BIM Coordination & Submission / Approval process

RFIs

Reduced site time. io

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Bulk of RFI process occurs while models are being produced, ensuring that resulting shop

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More systems are prefabricated reducing esy

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More systems are prefabricated reducing onsite labor and waste while increasing profitability for trades.

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3. Projects as Production Systems3. Projects as Production Systems

Structure of work is suited to the project’s ongoing needs rather follow a rigid binding plan.

Pulling commitments vs Pushing schedulePulling commitments vs Pushing schedule dates

Modularization, off-site fabrication, and multi-trade composition of work, can be made possible.

Keep work flowing so that the crews are alwaysproductive installing product;productive installing product;

Reduce inventory of material and tools on site.


Just in time delivery.

Projects as Production SystemsProjects as Production Systems

Reliable promises are obtained throughReliable promises are obtained through collaborative planning

Stand up write down your commitmentStand up, write down your commitment and post it on the board. Trades agree on what they will get from previous trade and

h t th ill d li t f ll i t dwhat they will deliver to following trade

All players see each other as clients.All players see each other as clients.

Sandbagging is prevented by peer pressurepressure.

Project challenges are solved as a team


Traditional Construction ProcurementTraditional Construction Procurement

Coordination

Suppliers

Coordination

Trades

Suppliers

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Trades

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SuppliersCoordination onC

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Site delivery Trades

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BIM enabled Prefab ProcurementBIM enabled Prefab Procurement

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Suppliers

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Offsite PreFabrication

Site delivery

BIM Coordination

ProcessSite

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Trades Trades

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3D D i F b i ti PF2F2F File to factory to field

3D Driven Fabrication ProcessF2F2F – File to factory to field

Prefabrication

CNC fabrication

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Economies of scale through modularization

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Increased precision & Speed

Solving field labor shortages esy

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Bridging the Model to Site activitiesBridging the Model to Site activities

F b i ti d lFabrication model

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As built condition

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BIM & FM / Asset ManagementBIM & FM / Asset Management

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http://www.leanconstruction.org/

http://www.canbim.com/

http://en.wikipedia.org/wiki/Lean_construction

http://www buildingsmartalliance orghttp://www.buildingsmartalliance.org

htt //fi t h /http://fiatech.org/


Th StThomas Strong, Director, CanBIMDi t Vi t l C t tiDirector, Virtual Construction,

[email protected] 896 8900905.896.8900


Lean Construction & Applied BIM - Thomas Strong, Canada EllisDon

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