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IPD 模式是一种新型的项目交付模式,其核心支撑技术是 BIM 技术和精益建造技术。通过文献阅读,归纳出 BIM在 IPD 模式中的应用体系:BIM 为 IPD 模式提供数据的储存和交换服务、BIM 帮助 IPD 进行法律事务处理、BIM 帮助 IPD完成设计施工任务和 BIM 有助于 IPD 组织文化的形成。研究 IPD 模式中主要使用的两种精益建造工具——末位计划者系统(LPS)和目标价值设计(TVD),提出两种工具的具体流程和步骤。针对 BIM 技术和精益建造技术,通过实际案例进行阐述,为国内应用 IPD 模式奠定理论基础,具有实践指导意义 相似文献
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精益建造理论是由精益生产思想发展而来应用于建筑业的一种先进理论。末位计划系统(LPS)是精益建造理论的重要组成,主要从生产单位控制和工作流控制层面对项目实施进行优化。从现行工程项目计划传递缺陷的博弈模型入手,阐释由此引起的工作流不可靠的危害。基于此,探讨LPS针对计划可靠性和工作流可靠性提升的途径,并以某DB房建项目的LPS应用为例,验证LPS的项目绩效提升效果。最后,针对我国工程管理现状指出了以LPS为代表的精益建造工具的应用展望。 相似文献
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:建筑企业内精益建造实施的效益评价问题是实现建筑企业快速发展的重要措施之一,为建筑企业管理者精准制定企业发展战略提供理论依据。从目标达成、精益工具及技术、浪费控制、精益氛围4 个维度构建了建筑企业精益建造实施效果评价指标体系,在考虑指标间相互影响和关联的基础上,运用网络分析法(ANP)和熵权法(EWM)相结合的组合赋权法确定各指标重要程度,结合模糊综合评价法(FCE)建立了建筑企业精益建造实施效果评价模型。并以中建某公司为例对所构建的综合评价模型进行验证,为建筑企业精益建造实施效果的评价提供借鉴。 相似文献
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虽然学者们对精益建造和可持续性建设的研究都较为深入,但将两者结合起来却还没有深入研究.运用精益建造的思想对可持续性建筑的流程管理进行优化,深入精益流程持续改进的研究.首先提出一个完整的适于可持续建筑的精益建造流程改进框架图,随后重点对其中的八大步骤进行了详细的解析,为今后可持续建筑的建造流程持续改进提供了一个可以借鉴的方法. 相似文献
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:现代综合医院项目的复杂性使建设与管理过程面临挑战,精益建造的流程管理技术有助于解决工程项目的复杂性问题和改善绩效。依据访谈和扎根理论的数据处理方法,识别出医院项目建造过程中的8 个浪费范畴,并提炼出流程间关联缺失、计划与协调不足、建造流程中断三大主范畴。结合现代综合医院项目的特点,构建了基于精益建造的“浪费识别-流程优化”模型,提出了现代综合医院项目的里程碑建造主线流程优化、专业工程穿插流程优化、医疗专业设备流程优化、以及工作流的可靠性改善4 个方面的流程优化建议。通过案例项目的现场调研和专题研讨,初步验证了流程优化成果的有效性和可操作性。 相似文献
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Takashi Kaneta Shuzo Furusaka Hiroaki Nagaoka Kenji Kimoto & Hiroaki Okamoto 《Computer-Aided Civil and Infrastructure Engineering》1999,14(1):45-54
This article presents a new method to represent the design and construction process in a systematic way and to develop a support system of management for concurrent engineering. We define activities included in the total process of a standard project, make an adjacency matrix about the relationship among activities, and structure the activities with a reachability matrix. As a result, the process consisting of several complicated interactions among activities was found. These interactions can be classified into three patterns. We constructed a new process model by dividing the information flow into nine categories. Moreover, the effectiveness of the model as a tool for concurrent engineering is discussed from four points of view, and the rellationship between concurrent engineering and project objectives is analyzed. This article shows the results matrix calculation first and then describes its contribution to concurrent engineering. 相似文献
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The Last Planner System™ (LPS) is well-documented in the literature, and has sometimes been used to represent lean construction or lean project management. LPS aims to achieve reliable workflow by encouraging foremen to have a sense of ownership of the project programme and to build-in their commitment into it. This study reports on the perceptions of Chinese building professionals of the application of LPS in Chinese construction projects. It reveals that several components of LPS have already taken place in large Chinese construction firms. Further, this study employs a SWOT analysis to examine the possible strength, weakness, opportunity, and threat factors that might have an impact on implementation of LPS in construction projects in China. 相似文献
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The practice of overlapping activities is becoming a requirement for fast-tracking complex construction projects. The amount, timing, and nature of the information exchanged between pairs of activities determine the degree to which pairs of activities may be overlapped. This paper presents a four-step process for scheduling the design phase of fast-tracked construction projects while taking into consideration information exchange among project activities. The process starts with capturing and quantifying this exchange of dependency information. A contemporary scheduling tool, the dependency structure matrix (DSM), aids in generating the shortest (overlapped) schedule based on dependencies among the different design disciplines. An algorithm is designed to calculate the shortest possible schedule for the design phase of a construction project. The developed scheduling algorithm is unique as it includes information exchange alongside task durations. The algorithm is validated in the context of a real-world case study, a fast-tracked multi-billion dollar educational facility project in the Arabian Peninsula. 相似文献
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As an alternative solution, the Dependency Structure Matrix (DSM) is a useful tool in project scheduling when approaching information dependency issues between activities. However, the current DSM approach faces the dilemma that the overlap of activities cannot be precisely estimated in the planning stage of a project, and the solution calls for a robust methodology for managing schedules within uncertain conditions of information dependency. The aim of our research is to propose an approach that utilizes fuzzy set theory to solve the problem within an uncertain environment. As an extension of traditional DSM-based scheduling, we describe the overlap and duration of activities as fuzzy numbers and put forth a systematic algorithm to calculate the time variables of activities and project duration thereof. An example is also provided to demonstrate the effectiveness of the algorithm. 相似文献
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随着建设工程项目的大型化、复杂化,其设计中的迭代问题也呈多发趋势。但相应技术或方法的缺乏,使得管理者在面对此类问题时常显得束手无策。因此,本文尝试将DSM理论引入到复杂建设工程设计进度管理领域,针对传统进度管理方法的缺陷及现有复杂建设工程设计过程中易发的迭代问题,构建一种以DSM理论为基础的进度优化体系,同时用蒙特卡洛模拟方法对设计进度的不确定性进行研究,最终将其运用于某大飞机配套工程设计进度优化中。结果显示,该模型在迭代活动识别、活动排序优化及工期分布预测计算方面均具有一定的优势,并可以通过解耦操作实现进度的优化,通过仿真模拟预判关键活动,为复杂建设工程设计进度的优化提供了新的思路。 相似文献
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工程变更是导致建设项目工期延迟和费用超支的重要原因。变更识别得越早,越有利于项目管理人员采取相应的预控措施来减缓变更对项目的不利影响。提出应用基于工作的依赖结构矩阵(DSM)进行工程项目实施过程中变更的预先识别。其中,基于工作的DSM用于表述每个工作之间的信息流;依赖关系图用于表述工作和非工作因素之间的信息流。并使用返工概率、返工百分比等对信息流建立了量化模型。利用Matlab7.1开发平台建立了建设工程变更预测系统,并应用于实际案例,输出结果验证了系统的有效性,可为建设工程变更管理提供新的辅助工具。 相似文献
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建筑工程领域出现两种变革性的新技术:一种是新的建筑工程管理概念模式:精益建造(Lean Construction,LC);另一种则是新的信息技术:建筑信息模型(Building Information Modeling,BIM)。两者协同应用到工程实践中比单独应用其一所带来的价值更大,所以探求两者间的交互关系很有意义。本文在详细分析精益建造原则和BIM 技术功能的基础上,通过构建交互关系矩阵,探究两者间交互作用,并给出协同应用建议。本文研究可供工程项目参与各方制定精益建造和BIM 技术应用策略时参考,指导工程实践,增加项目价值,提升行业效率。 相似文献
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Venkatachalam Senthilkumar Koshy Varghese Ajai Chandran 《Automation in Construction》2010,19(2):197-212
Planning methods such as CPM and PERT cannot model the iterative details of design processes. It has been demonstrated that the Dependency Structure Matrix (DSM) is an effective method to model iterative process. However, formulating the DSM on large construction projects, using current methodologies is challenging. To address this challenge, a structured methodology called Design Interface Management System “diMs” has been proposed. As the documents and interactions required for implementing the “diMs” process are voluminous, support of an IT based tool is essential. This paper presents the design and the development of the tool. It includes the design of class structure, relational database and communication engine using object oriented concepts. In addition, the design of user interface which consists of a set of dynamic web pages is also explained. The paper also illustrates the usage of the tool for the design of a glass factory and discusses the utility of the tool in assisting design interface management. 相似文献