简介:Constructionprojectschedulingisoneofthemostcriticalfactorsforprojectsuccessmeasurement.Notonlyfortheprojectplanningbutforconstructionprocessmanagement,theschedulingisthebasictoolforcommunicationbetweentheownerandtheprojectmanager.Bydevelopingtheschedulebeforetheprojectstarts,theownerknowsinadvancethattheexpectedtimelineoftheproject.Bypreparingconstructionprocessscheduling,theownerandgeneralcontractorcanbettermanagethesubcontractors,sub-tradesprogress,materialsstorageanddeliveries,laborsscheduleandequipmentsetupwhichwilleventuallysavetime,moneyandhassle.Basically,CriticalPathMethod(CPM)iscommonlyusedintheconstructionindustry.CPMisadeterministicmethodthatassumesthatthroughthenetwork,thereisatleastonepaththatdeterminestheprojectdurationandthatthepathisthecriticalpath.CPMdoesnotconsidertheuncertaintyintheactivities;ratheritassumesthateachactivitycanbefinishedinthegivensituation.ProgramEvaluationandReviewTechnique(PERT)isastochastictechniquewhichisbasedontheassumptionthatthedurationofasingleactivitycanbedescribedbyaprobabilitydensityfunction.PERTtakesintoaccounttheuncertaintyduringtheconstructionprocessandhasbeencreatedoutoftheneedtoplan,scheduleandcontrolcomplexprojectswithmanyuncertainties.ThePERTapproachisstatedinsomebooksandpapers,butthereisnodeepinvestigationontheapplicationinthescheduleriskassessment.ThispaperinvestigatesthePERTworkprocessandtakesavaluabletryontheconstructionscheduleriskassessmentbyusingcasestudies.Theutilizationintheestimatetheconstructionliquidateddamagewiththeuncertaintiesisperformed,whichalsocanbeusedintheinsurancecompanytocalculatetheinsurancepremium.
简介:摘要近年来我国房建工程项目呈现蓬勃发展的态势,各房建工程已经在各个城市开始投入使用。但在房产建设的过程中却出现了许多质量问题,伴随各地工程的工期要求越来越紧张,各种质量问题层出不穷,对我国房建工程造成了巨大的损失,也对购房者的人身安全造成了一定隐患。房建工程泛指各类房屋建筑及其附属设施及与其配套的线路等装修工程,因为房建工程具有环境因素复杂、设计领域广泛等特点,使得房建工程建设具有一定的危险性,因此如何保障房建工程施工速度快,并兼顾房建工程质量已成为相关人员主要探讨的问题。而PERT在房建工程进度监理的应用可以解决这一棘手问题,PERT可以起到对整个房建工程建设进行进度监理、高效完成施工任务的作用,因此,重视PERT在房建工程进度监理的应用可以提高房建质量,并加快施工进度。