Fuzzy-multi-objective particle swarm optimization for time–cost–quality tradeoff in construction

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1、AUTCON-01151;NoofPages9AutomationinConstructionxxx(2010)xxx–xxxContentslistsavailableatScienceDirectAutomationinConstructionjournalhomepage:www.elsevier.com/locate/autconFuzzy-multi-objectiveparticleswarmoptimizationfortime–cost–qualitytradeoffinconstructionHongZhang⁎,FengXingSchoolofCivilEn

2、gineering,ShenzhenUniversity,ChinaarticleinfoabstractArticlehistory:Thetime–cost–qualitytradeoff(TCQT)problemistodecideanoptimalcombinationofconstructionmethodsAccepted26July2010withtheobjectiveofminimizingcostandtimewhilemaximizingquality.SearchingforsuchanoptimalAvailableonlinexxxxcombinat

3、ionofconstructionmethodsneedstoevaluatethetotalcost,timeandqualityoftheproject.Theseperformances,especiallythequality,maybecollectedandrecordedintermsofimpreciseorvaguedataKeywords:ratherthanprecisenumbers.Thispaperpresentsafuzzy-multi-objectiveparticleswarmoptimizationtoTime–cost–qualitytra

4、deoffsolvethefuzzyTCQTproblem.Thetime,costandqualityaredescribedbyfuzzynumbersandafuzzymulti-FuzzynumbersMulti-attributeutilityattributeutilitymethodologyincorporatedwithconstrainedfuzzyarithmeticoperationsisadoptedtoConstrainedfuzzyarithmeticevaluatetheselectedconstructionmethods.Theparticl

5、eswarmoptimizationisappliedtosearchfortheParticleswarmoptimizationTCQTsolutionsbyincorporatingthefuzzymulti-attributeutilitymethodology.Theproposedmethodologyisimplementedandjustifiedthroughcomputationalanalyses.Thestudyisexpectedtoprovideanalternativemethodologyforsolvingthetime–cost–quality

6、tradeoffproblem.©2010ElsevierB.V.Allrightsreserved.1.IntroductionTCQTproblemusingthreeinter-relatedlinearprogrammingmodelsbyassumingtherelationshipsamongtheprojectcompletiontime,Inordertobalancethecompletiontimeandcostforenhancingtheprojectcostandquality.KhangandMyint[12]appliedthemethodofef

7、ficiencyofaconstructionproject,manymethodologieshavebeenBabuandSuresh[11]toanactualcementfactoryconstructionprojectproposedtosolvethetime–costtradeoff(TCT)problembydecidinginThailandandtheninvestigateditspracticalapplicability,basicanoptimalcombinat