Topic:Prefabrication&Construction(Aditazz,Optima,Mosaic,BroadGroup)
TakeAwayPoints:
• Developelectronicconstructabilitydatabase;allowexplicitandtacit
knowledgetobepassedonbetweenparticipantsandprojects.
• Prefabricatedcomponentsarerepetitiveandallowformoreskilledlaborto
bekeptincontrolledconditionsandlessskilledlabortoassemble.
• Prefabricationrequiresasub-assemblysite,whichneedstobeconsideredin
thecostvs.benefitevaluationofprefabrication.
• Prefabricationworksforlargerprojectsbecauseofeconomiesofscale,it
costsmoreandbringshugeschedulereduction.[CaseStudy:Preassembled
MEPpartscost14%morethanstickbuilt,save6weekson-sitescheduleor31
filedlaborers]
IndustryStrength:
• Aditazz:Highlevelofrepetitiveness,restrictapproachanddesignsolutions,
usecommoncomponents.Definethelevelofprefabrication,uselocal
materialwhenpossible.
• Broad:Fullyintegratedmanufacturer,designer,contractorandsubcontractor.Floor/ceilingpartsareidentical.[30-storybuildingin15dayswith
90%oftheconstructiondoneoff-siteinfactory;39*7ftfloor&facadepart]
• Optima:ClearDesignSpecifications.Namingsystemtodictateflow.Prefab
providessaferworkingconditionsonsite.[7*7ftfloorpart]
• Possiblepositivecorrelation:levelofprefabricationvs.constructioncost,
erectiontime,andchangeorders.Possiblenegativecorrelation:#ofmodules
vs.productiontime.[QualitativeresultsfromPermanentModular
Constructionreport]
• ConstructabilityscoresnecessaryforbuildingpermitsinSingapore.
OpportunityofImprovement:
• 83%ofconstructabilityknowledgeiskeptastacitknowledge.
• Efficiencyvs.costanalysisgivenspecificprojectscenario.
• Therehastobeaclearagreementamongthestakeholdersonwhobearsthe
relevantlogisticalcosts.
• Needmorewaystoquantifylevelofprefabrication.
• Needcost+scheduleequivalentcomparisonstoevaluateprefabricationROI.
Presentations
TheNeedforaConstructabilityDatabase----MarkSoendjojo
PrefabricationSolutionthatMaintainsArchitecturalAttractiveness----YutingWang
PrefabricationLogistics----ChoonKeatLee
PrefabricationMetricCorrelations----EllenTung
MEPConstructionbyParts----GeffenOren&AnishTilak
Topic:ModularConstruction(Mosaic,ShiftModular,ShippingContainers,Zipflat)
TakeAwayPoints:
• Mosaic:Perhapsachangeindesigntypewouldbenecessarytolowerthe
productioncosts(andthereforeretailprice)oftheMosaicproduct(inrelation
todisasterrelief).Hospitalityviable(+aesthetics&scalability),disasterrelief
notviable(-cost&development).
• Intershelter:caterstothehospitalityindustry.
IndustryStrength:
• Mosaic:willlikelydowellinthehospitalityindustryiftheproductcanmeet
theirtargetedsustainabilitygoals.
• Mosaic:aesthetics,scalability,constructiontime,portability.ShiftModular:
aesthetics,development;Zipflat:portability;shippingContainers:cost,
constructiontime,portability,development.[Qualitativerating]
OpportunityofImprovement:
• Mosaic:Teamneedstodevelopgooddatacollectionandanalysismethodsin
ordertocontinueimprovingprojectsustainability.[Target:carbonneutral,
90%wastereduction;preliminaryscore:LEEDGold]
• Teamshouldfindways,inwhatevercapacity,toreachintothedisasterrelief
marketasitisdominatedbyafewentities.
• Mosaic:development,cost;ShiftModular:cost,constructiontime,portability;
Zipflat:aesthetics,scalability,cost;ShippingContainers:aesthetics.
[Qualitativerating]
Presentations
SustainabilityAnalysisandDisasterReliefEvaluation:MosaicModular----WandipaLa-Toya
Mualefhe
AssessmentofModularConstructioninUniqueMarkets----ElizabetheManzi
Topic:Permitting(CityofLosAngelesDepartmentofBuildingandSafety,
Singaporeprivateindustryprofessionals)
TakeAwayPoints:
• Needtoexplorethebenefit/problemandencouragetheadoptionofBIM
permitting,evaluateemployeeperformancewithconsequences.
• “One-stopshop”submissionsystemhasledtomostsignificantpublic
approvalefficiencygains.[Avg.26daystopermitwarehouseinSingapore]
IndustryStrength:
• HighBIMadoptionintheUSconstructionindustry.
• BIMadoptionprimarilydrivenbySingaporegovernment,government-training
programshavehelpedreducefrictionfromtransition.[80%projectsusingBIM
by2015,all5,000+sq.meterprojectsuseBIMinArch,Structure,andMEP]
OpportunityofImprovement:
• Communicationerrorsbetweendepartmentsslowdowntheprocess.[Survey:
5outof6responsesencountercommunicationerrors20%+ofthetime]
• Regulatorsareslowintermsoftechnologyadoption.
• Cancomplexbuilding(healthcare)permittingbecome"one-stopshop"?
Presentations
PermittingefficiencyinsouthernCalifornia----AlannaDedek
PublicapprovalefficiencyandBIMAdoptioninSingapore----HanWeiChew
Topic:ProjectRisk
TakeAwayPoints:
• Minimizeoverallriskbybalancingbuildingpartsinterdependenciesand
reducingpartstypes.[Majorrisksforparts:labor,material,anddesign]
• Uselivedatatofeedsupplychain,andusecostdataandsupplychaintodrive
projectdesign.[SimilarlytoAditazz(restrictapproachanddesignsolutions)
toavoidextracost]
OpportunityofImprovement:
• Toomanylevelsofpartsdependencymayleadtolowprobabilityofsuccess.
• Needfastandaccuratecostdatabase.
Presentations
ProjectCostUncertaintyandCostofCapital----AaronJabbari
RiskControlBasedonPartsDesignandConstruction-asimulatedcasestudy----XiaoChen
RiskControlWriting----XiaoChen