BIM - Building Information Modelling

BIMBuilding Information Modelling

Was ist BIM?Warum BIM?

Okt. 2012 1Prof. Rasso Steinmann Institute for Applied Building Informatics

Okt. 2012Prof. Rasso Steinmann Institute for Applied Building Informatics 2

Warum sind die Folien in

Englisch?

Mission

• Institution for the public good• Supporting value chains by improved

interoperability• Technology‐ und Know‐How‐Transfer• Minimizing risks by

– Integrated usage of data– digital simulation – Implementation of digital building

models• Supporting standardization by

– Definition– Implementations– Certification– Adaption in industrial business

processes

• Rasso Steinmann– Private:

• married, 4 children, musician– Study:

• Civil Engineer, TU Munich– Industry:

• Software eng., Project Manager, Director of Development, Senior Consultant at Nemetschek

– 3D‐CAD, Expert Systems, Cost estimation, Facility Management

• Freelancing Consultant– Academia, Research:

• Professor for Building Informatics at Munich University of Applied Science

• Many EU and German research projects

• Founder and Director of iabi– buildingSMART:

• Chairman Implementer Support Group

• Deputy Chairman bS‐GS Chapter• Deputy Chairman bS‐International

Institute forApplied Building‐Informaticsat Hochschule München

Okt. 2012 3Prof. Rasso Steinmann Institute for Applied Building Informatics

Just to be sure, that we are on the same side …

• Digital Building Model– (Building Information Model, Virtual Model, …)– Data schema

• Describes geometry, properties and relationships of buildings and their components

• Supports storing, sharing, exchanging of digital building information– Cumulated information about a building

• BIM – Building Information Modeling– Integrated building life‐cycle process– Supported by a digital building model– Create & manage building data– Team‐oriented working processes


Definition of integrated BIM

Integrated BIM means • Improved

– collaboration,– Communication– and decision support

• enabled by– horizontal – and vertical

integration of data,• and information

management – in the whole value

network – throughout the

building lifecycle.


Image © ProIT, M.A.D & Confederation of Finnish Construction Industries RT

To BIM or not to BIM?

• Is BIM an overrated phenomena to a paradigm shift?• Do we need a paradigm shift?• If we need a paradigm shift:

– What do we need to shift?– Where to start?


The shift in Automotive Industry 20 yrs ago

• The Carnegy Mellon augury some 20 years ago:– “The German car industry will fade away in a couple of years”

• => Main lessons learnt:– Reduction of in‐house production depth– Digitalization of information– Standards for data‐exchange with partners– => Total new processes in design, production, logistics


And the Building Industry?

• Yes we have …– Innovations in production and materials– Pre‐fabrication (but only to a certain extend)– Online workspaces

• But basically …– We are still communicating like the pharaohs some 2000 years ago

– We have digital data, but we use them only as digital documents

• This is faster• But still quite stupid

– => we are going on to delete information before we exchange it


How can we share what we think?Is there a better way than 2D‐plans and text‐documents?


Source:Prof. Richard Junge

IFC+(IFG + IFD) product model

Illustrations from: Byggforsk, Olof Granlund, NBLN University of California, Stanford UniversityBy Lars Bjørkhaug, Byggforsk

Briefing‐Functions ‐Estimates,‐Budget‐Requirements

Knowledge databases‐Best practice ‐Specific knowledge

CAD software‐Drawings, calculations‐Architect, engineer,…

VRML‐Visualizing, 3D model

Building specifications‐NS 3420‐NS 3451‐Calculations, budget

Tendering‐Product databases ‐Price databases

FM Operation‐Leasing, sale‐Maintenance‐Guarantees

Renovation, rehabilitation‐Renovation ‐Demolishing‐Rehabilitation

Progress ‐ time schedules‐Progress planning ‐Logistics, 4D

Simulations‐Indoor climate ‐Ventilation, HVAC‐LCCA‐Light and acoustics ‐Heat loss ‐Fire ‐Environmental impact

Codes and regulations‐Building codes‐Building regulation‐ Central authority

Building application – E‐submission

‐Local authority‐Building permit

BIM needs IT + a Standard ‐> IFCBIM from Early Design to Demolition


IFC (Industry Foundation Class)is such a Semantic Product Model


Source:Prof. Richard Junge

There is even IFC‐compliant software availablehttp://www.ifcwiki.org/


BIM‐Situation in Germany

• Some Key‐Players adopted BIM– Some large Contractors– Some authorities– Some innovative architects and

consulting engineers• Contra‐productive

– HOAI (German fee structure for arch. and eng.)

• However: International impacts– International building owners

contracting in Germany• Key BIM‐Technology comes from

Germany– Basics of IFC came from Germany– BIM‐Software available since 25 years– BIM‐Middleware solution was available

already 10 years ago– Technical experts are available

• New approach together with

– BIM‐Bau: Advisory Committee• Chambers of Architects and Engineers• Building Associations• Building Software Association• buildingSMART

– Pilot Projects


Prof. Rasso Steinmann Institute for Applied Building Informatics

Industry leaders are convinced, e.g.:Patrick MacLeamy, CEO HOK, Chairman buildingSMART

Okt. 2012 14

This is important!We need to

change industry!

BIM is today

• Key‐Players are already doing it

• Following slides, already some years old


HAKA6

Only oneparticipantused BIM

BIM used only in onephase of the project

BIM used in allphases of the project

All participants

used BIM

Canthia

VTT Digi BuildingHU Animal HospitalTorikatu 36, Oulu

Upinniemi Central Warehouse

Didacticum

TUT AdministrationTietotalo 2, OuluHUT-600

Aurora 2Helsinki Music Centre

e.g. Some BIM/IFC projects of Finnish Senate Properties

Lohipato school

As the result of testing Senate Properties

announced in 2006 that they will demand BIM in all projects starting on

October 1st, 2007

e.g. Statement from Skanska

15.12.2009

Prof. Rasso Steinmann Institute for Applied Building Informatics 17

e.g. BIM‐Strategies at PÖYRY

15.12.2009

Prof. Rasso Steinmann Institute for Applied Building Informatics 18

BIM in Praxis

16. 10. 2009

Prof. Rasso Steinmann Institut für angewandte Bauinformatik 19

e.g. Bögl: We need to change our processes


e.g. BIM‐Strategy at Bögl


e.g. HOCHTIEF even has a “BIM‐company”


e.g. US ‐ COBie –> impact on Germany






203 Urban Canvas

148 Back in Black

164 Forum Artis

147 Urban Transition 209 Trylleesken

216 M Box

IFC in Use – Architectural Contest


IFC in Use – Integrated Project Delivery for Music Hall


new extension based on architectural competition

Software: ArchiCAD

Data handover in IFC

BIM data - IFC from ArchiCAD to AutoCAD ArchitectureFM Data – IFC from ArchiCAD to CAFM Morada

IFC in Use – New wing added to central BIM

adding new extension building model to 3D model archive

handover to FM


Where is the budget for BIM?

• The overall project costs– Remains 100 %– may not be increased for BIM

• Only very, very few building owners are able to understand the need for BIM

• Quality improvement by BIM is not yet well understood

• => The budget has to come out of savings in the project– Reduce errors

• Bögl: “Errors on construction sites are much more expensive than BIM and BIM‐Managers.With BIM we can save 20%‐30%”

– Savings in workload• Have to be shared in the consortium

– Biggest impact on total costs is in the early design phases


Let’s talk money:New fee diversification for BIM in budget for planning


Fee diversification, up to nowBasic evaluation

Preliminary planningOutline planning

Approval planningDetailed design

Fee diversification, BIM

Basic evaluation

Preliminary planningOutline planning

Approval planningDetailed design

100%

100%


New roles and job descriptions?e.g. BIM on practical level at HOK

Okt. 2012 33

New work methodsWhat can we learn from automotive industry?


Curtsey:Dr. Bernd GeblerBMW

From the idea to the productProcess chain


Curtsey:Dr. Bernd GeblerBMW

Comparison: Building IndustryA lot can be done, already


Curtesy:Siegfried WernikLéon Wohlhage Wernik Architekten

Where buildingSMART (former IAI)started in 1995


Arch

Struc

MEP

Curt

Cost

PM

Cont

FM

Arch

Struc

MEP

Curt

Cost

PM

Cont

FM

SharedBuilingModel

The painful reality The theoretical dream

Lessons learnt form automotive industry:The product model is evolutionary

=> Data Synchronization and Consolidation at certain milestones


Something like this seams to be more realistic

e.g. Collision‐Check for Consolidation


=> Neuartige Softwarez.B. BIM‐‐it© eine Worflow‐Cloud‐Anwendung


www.bimtaskgroup.org


www.bimtaskgroup.org


www.buildingsmart.de


Thank you for your attention!


[email protected]

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BIM - Building Information Modelling