Construction Analysis during the

Design Process

Construction Analysis during the

Design Process

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Bauke de Vries

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Bauke de Vries

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4D-CAD4D-CAD

•Linking building components with construction activities•Manual task of the construction planner•Dedicated systems: NavisWorks, 4D Suite, …•Advantages: Simulation, Visualization

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ChallengeChallenge

Automation of the planning process.

Advantages:

• Independency from the planner

• Quick first concept plan

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ImplementationImplementation

EquipmentLabour

Constr.Analysis

Comp.Rel. +Dur.

CADmodel

Formulas

CADProject

PlanningPlanningSchema

Design evaluation

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Construction algoritmsConstruction algoritms

Analysis by object name:

Walls are bearing floors, colums are bearing beams, etc.

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Construction algorithmsConstruction algorithms

Analysis by object elevation:

Object with a lower elevation is bearing an object with a higher elevation

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Construction algorithmsConstruction algorithms

Analysis by directed graph:

Each object is a node in a connection graph.

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Construction algorithmsConstruction algorithms

Analysis by object adjacency:

Each object is a node in a topological graph

A

C

B I

G

FD

JE

H K

L

M

N

- Objecten zonder voorganger

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Construction analysisConstruction analysis

Object of anlysis

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Construction analysisConstruction analysis

Move down

– Inleiding – Oriëntatie – Doelstelling van het onderzoek – De algoritmen – Implementatie –– Case Study – Reactie uit het bedrijfsleven – Conclusie en Aanbevelingen – Einde –

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Construction analysisConstruction analysis

The green objects have an intersection in the vertical direction with the red object

– Inleiding – Oriëntatie – Doelstelling van het onderzoek – De algoritmen – Implementatie –– Case Study – Reactie uit het bedrijfsleven – Conclusie en Aanbevelingen – Einde –

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Construction analysisConstruction analysis

The red object has in intersection with the green objects in the horizontal direction

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Construction analysisConstruction analysis

Example: Objects adjacent to floor

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Pilot studyPilot study

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Planning comparisonPlanning comparison

Real planning

Generatedplanning

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DifferencesDifferences

• Concurrency whenever possible

• Unlimited resources

• Construction method

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Complete processComplete process

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ExperiencesExperiences

• Model preperation through clash detection

• Generated planning 2 months longer than real planning over a a period of 1 ½ year

• Suitable for a quick first guess

• Further development of: Construction method, Humen resources, Material resources