5. 11.2015

Model-based EstimatingOlli SeppänenProfessor of PracticeOperations Management in ConstructionDepartment of Civil and Structural Engineering

BIM > another step change for estimating

As the technology continually improves, one thing does not change….

The need for an Estimator!

Evolutionary Estimating

Target €

€ / M2

€ / SYS

€ / Element

€ / Activit

y

€ / Unit

Why use BIM in estimating?

Decision Support &

Superior Interaction

Improve Efficiency &

Reduce Design, Cost &

Schedule Risk

Make Life Easy

for GCs / Subs

Win Business+

Reduce RiskMake Life Easy for

Owners/Designers

BIM ties disciplines together: Quality-Schedule-Cost

CAD/

BIM

ENTERPRISE

Actual Cost, Quantity & Production data mining

SchedulePlanning

ProductionControl4D

CostPlanning

CostControl5D

Build toDesign

Design toBuild 3D

2D/

2D/3D Design

ProjectAccounting

ChangeMgmt

QuantityTakeoff

CostEstimating

ProjectScheduling

BidMgmt

CostControl

ProductionControl

ConstructabilityAnalysis

BIM to FieldIntegration

VisualPrez

Biz Dev OperationsPreconstruction

Concrete

Rebar

Formwork

Cladding; Surface Finish

TOIsTakeoff Items

$/Qty

TOQsTakeoff Quantities

$/QtyResources

$/Qty

Column ‘Type 1’

Equipment

Labor

Materials

LBS

2/3D Design 5D Cost 4D Time

Integrated BIM+Estimating+Scheduling

Gantt Chart4D Simulations

Procurement Demand

Cash FlowResource Graphs

Flowline

Cost Planning Integrated Workflow

Model Elements

Takeoff Items

Cost Components

Cost Assemblies

Element Properties

Formula

Estimate Progression - 1

Estimate Progression - 2

Estimate Progression - 3

Estimate Progression - 4

Estimate Progression - 5

Thank you!