1 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

BIMforLifeCycleAssessmentACaseStudy:Redensifica;on

Prof.Dr.IvaKovacicIns0tuteforinterdisciplinarybuildingprocessmanagement,HeadofResearchGroupforIntegratedPlanning,TUWienMelihaHonicIns0tuteforinterdisciplinarybuildingprocessmanagement,ResearchGroupforIntegratedPlanning,TUWien

2 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

ResearchGroupforINTEGRATEDPLANNING ResearchAim:

Explora0onofIntegrated,Collabora0veDesign(inEARLYstages)supportedbyBIMandComputa0onalToolsFocus:•  BIMtoFEM(Analysis)•  BIMtoBEM•  BIMforLifeCycle•  ExperimentalResearchofCollabora0veDesignPrac0ce

3 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

PointofDeparture

•  OngoingResearch:BIMMaterial“BIM-basedMaterialBuildingPass”•  UrbanMining–BuildingsasMaterialStorage,Re-useofMaterials,WasteReduc0on•  DesignforDeconstruc0on(partofpermiUngprocess)•  BIMMaterialissimultaneouslyanop0miza0ontool(LCA)and

adocumenta0onofmaterialcomposi0onofabuilding

4 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

PointofDeparture

•  Evalua0onofBIM&soXwaretoolchains/workflowsforLifeCycleAssessmentofenvironmentalfootprintofmaterials&construc0on(inearlydesignstage),materialcataloguingandmanagement

•  Firststep:CaseStudyonRedensifica0on(CLTHousingBlockonexis0ngsupermarketlot)

Building Land Building Land Reserve

Before Densification After Densification

5 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

PointofDeparture

Site:Supermaraketparkinglot,innercity–2.District

6 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

ResearchMethodology

BuildingOneautomated

MSExcelmanual

BIMModellingforLCA

7 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

Pre-Design 3D Model, Singe layer Elements LOD 100

List of layers (materials), Material equivalents Holzdata Austria - IBO

Conceptual Design Multi layer element modelling, Naming according to IBO LOD 200

Areas query from the 3D model

Plug In in Archicad Direct assessment of volumes of materials

Results in BuildingOne Export to XLS

ModellingMethodology

LCA Results

8 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

ModellingMethodology

CLTDatabasedataholz.at

Eco-IndicatorsDatabaseIBO

Propertysets

IBO OI3 (2013) OI3-INDIKATOR Guideline for Calculation of Eco-indicators for buildings, Vienna, Austrian Institute for Building and Ecology.

www.dataholz.at

9 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

DetailedBIMModelinArchicad19

Mul0-LayerElementExteriorWall

ModellingMethodology

10 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

Calcula0onsheetinMSExcel

ECO Indicators GWP, AP, PEI

WorkflowBIM-XLS

BIM Model Areas

Layers Thicknesses

LCA Calculation Rule Sets

11 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

BIMfürLCA–Archicad->BuildingOne

ECO Indicators GWP, AP, PEI

BIM-Model Layers, Areas, Volumes, Masses

LCA Calculation Rule sets

BuildingOneCalcula0on

12 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

LCAResults

Thickness

Area

Volume

Multi Layer Element

Multi Layer Element

13 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

LCAResults

New housing without structural optimization New housing with structural optimization Existing Structure

GWPbefore/Person10Persons

GWPaXer/Person10+72Persons

HousingBlock

Exis0ngRetailExis0ngRetail

14 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

Conclusion

•  Assessmentofenvironmentalfootprintsofmaterials&construc0onusingBIMtoolchainsenablesdesign-op0miza0oninearlydesignstages

•  Alloca0onandmanagementofmaterialsandconstruc0onispossible•  BuildingOneisadvantageous–synchronisa0onofmodelchanges,automated

assessment,despitethefactthatthesoXwarewasoriginallynotcreatedforLCAbutareamanagement

•  Challenges:Datainconsistencies-Harmoniza0onbetweenproductmanufacturers,digitalobjectlibrariesandEPDsorDevelopmentofstrategieshowtodealwithvaryinglevels/contentsofinforma0onCrea0onofdigitalknowledgerepositories(insteadoflists)

15 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

finalaimBIMMaterialDigitalBIM-basedMaterialCadastreforthecityofVienna

16 PROJEKT INFO | 30.11.2010 3.6.2016. / Iva Kovacic

Thankyouiva.kovacic@tuwien.ac.at