1-4 Boeykens SB History future BIM Energy 20180625 optimizedqualicheck-platform.eu/wp-content/uploads/2018/04/1-4... · 2018-07-04 · 25/06/2018 'BIM & Energy of buildings' Dr. Arch

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History of BIM developments and expectations for the future

Dr. Arch.‐Eng. Stefan Boeykens

Sr. BIM Consultant D‐studio

Guest Professor KU Leuven, Department of Architecture

Dr. Ir. Arch. Stefan Boeykens

• PhD. BIM 2007 (KU Leuven)

• Guest Professor KU Leuven Department Architecture

• Sr. BIM Specialist D‐Studio

• Mission: developing & sharing BIM knowledge

25/06/2018 'BIM & Energy of buildings' Dr. Arch. Eng. Stefan Boeykens (D‐studio / KU Leuven) 2

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A gentle introduction toBuilding Information ModelingWhat is BIM? Why do we need it? Is it about software? Is it a process? What are the limitations?


What is “BIM”?

ISO 29481‐1:2016(en), 3.2• Use of a shared digital representation of a built object (including buildings, bridges, roads, process plants, etc.) to facilitate design, construction and operation processes to form a reliable basis for decisions

• Note 1 to entry: The acronym BIM also stands for the shared digital representation of the physical and functional characteristics of any construction works.

Plain language

• Process “Building Information Management”

• Digital Representation “Model”• Collaboration, Communication, Coordination

• Interoperability

Many definitions & interpretations…


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BIM as a “model”


© S. Boeykens

EvolutionSoftware andTechnologyEvolution of CAD

2D Drafting

3D Modelling

Object Modelling

Integrated Analysis

“Virtual Engineering”

“Virtual Digital Construction”


© S. Boeykens

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EvolutionInformation ManagementRich Semantic Information

Process Organisation

Workflows & Collaboration

Coordination

Common Data Environment

…

Quality Control

Issue Tracking

Model Checking

Preparation of Asset information

New “roles” or “functions”

Tasks & Responsibilities


EvolutionStandards and GuidelinesGuidelines

• Process

• Modelling

• Libraries

BIM Mandate & Standards

• National

• ISO

• CEN

Project Guidance Documents

• BIM Protocol

• BIM Execution Plan


http://www.wspgroup.com/upload/BIM_map1.gif

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Process of ChangeIndustry in transition to BIM

Partial adoption by users

Limited client demand

Incentives to move forwards


Source: Singapore BIM Guide Version 2.0

Beyond the technical dimension of BIM

Institutional & Cultural Framework

Coordinated Work Practices

Synchronous Collaboration

Information Management

Intelligent Models

3D CAD

BIM as a Socio‐technical system

Current focus = mostly technical

Total transformation

design & construction industry

the way business is done


Source: “BIM In Finland (T. Henttinen)” + WSP Group

Social

Technical

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BIM as a “process”

Improve Processes

• Better communication & collaboration

• Efficient information entry, transfer and retrieval

• More impact on end result• Cost• Planning• Performance• Operation

Save costs

• Avoid duplication of information

• Avoid repetition > Automation

• Avoid errors

• Benefit from digitisation

• “Integrated Project Delivery”


Cost | Effect | Effort

Project TimelineBrief | Planning | Preliminary Design | Technical Design | Construction | Exploitation

Cost of ChangesAbility to impact costInfluence on end result

Adapted from http://www.popsci.com/building‐information‐modeling‐how‐construction‐industry‐getting‐smart

Traditional WorkflowBIM Workflow


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Project Lifecycle

© S. Boeykens

planning design admin construct operate EOL

Building/Facilty lifecycle

Potential lifecycle of Model

Building Owner/Manager

Current primary focus of BIM

ContractorDesigners manage model


BIM for digital engineering and performance assessmentDigital Building Models – information about project, materials, installations –performance & integration in the design process


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BIM Coordination

Clash Detection Mixing digital and real‐world


Source: BIMplan (B)

http://www.darlingltd.com/3d_laser_scanning/clash‐detection.html

BIM Technology for design & construction

Coordination and communication Tablets, Drones, VR/AR


https://www.tekla.com/about/news/mota‐engil‐relies‐heavily‐bim

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BIM for analysis & performance

Structural Calculations 4D Planning


4D Virtualbuilder for SketchUp (D‐studio)Scia Engineer

BIM for analysis & performance

Performance Analysis Environmental Impact (LCA)


© Autodesk

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Relation between BIM & Energy

• Digital Representation of a project

• Whole lifecycle• Planning & Strategy• Early Design – rough analysis• Final Design – detailed analysis• Handover – validation• Operation – control & prediction


Source: http://www.buildingsmartnordic.org/resources/openbim‐for‐a‐nordic‐sustainable‐building‐industry‐1/finnish‐requirements‐for‐energy‐simulation

Energy Analysis with BIM during early design


EPB/PEB (B) – example M. Senave

Graphisoft Ecodesigner

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Detailed energy analysis with BIM


© Graphisoft Ecodesigner Star

Building Management


© Alexis Versele, Bio‐Ecologisch Passiefbouw, Technologiecampus Gent (B)

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Information available in modelsWhat can we expect from Models? What type if information do they provide?

Project – Site – Spatial Structure – Elements – Materials – Properties ‐ …


Information available in Models


• Project, Location + Orientation

• Elements

• Types

• Quantities

• Materials

• …

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Location & Orientation Geo‐location & Climate


© Autodesk Ecotect



Element Composition

Material Information

Dimensions & Sizes

Areas & Volumes

Class/Category • Doors, Walls, Windows...

Type

• Exterior Door Type A, Interior Wall Type B...

Instance• DO‐01, WA‐12...

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Element “Identification” across sources


Systems, Pipes, Equipment Piping & Ducts Network Topology


Source: Johan Verleye Architecten (B) Source: Witas (B)

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Connections between elements Space Boundaries


Source: cobim_10_energy_analysis_v1.pdf


Schedules for Spaces & Equipment Heating/Ventilation Zones from model


Source: Witas (B)

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Materials (Identification & Properties)


Contradictory Measurement Codes!


Spaces are net‐volumes in BIM‐software

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What belongs in the model?

Inside the model

• Geometry

• Dimensions

• Spaces

• Identifiers (name, ID, type)

• Main Characteristics• Material, Composition, Quantities

What can be elsewhere?

• Material Database

• Pricing Database

• Advanced Planning

• Specifications

Final conclusions…


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Towards a Zero‐Energy future with BIM?

• Seamless collaboration

• Open standards based access to all information (true interoperability)

• Connect tools, applications, models, data sources, stakeholders

• Whole‐lifecycle performance assessment of a facility

• From Macro to Micro Scale


Thank you for your attention

Questions? Comments?

[email protected] ‐ [email protected]

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