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为提升建筑物拆除的信息化程度和建筑固废资源化利用率,从建筑物全生命周期循环的角度,提出了使用BIM和三维扫描技术的智能拆除系统框架:首先使用三维扫描仪和提出的三角锥靶标获取既有结构的点云并注册,然后基于开发的点云处理算法提取结构的几何参数并用于BIM模型的重建;紧接着,基于该BIM模型进行了拆除方案制定、安全性模拟和经济性评估。实践应用表明,提出的基于三角锥靶标的点云注册方法适用于建筑结构的点云注册,几何测量算法能够准确提取建筑构件的几何尺寸并用于精细化BIM模型的重建;基于该BIM模型制定的拆除方案、数值模拟和成本测算模型,可以预先对拆除方法的安全性、经济性进行准确评估。该框架从现场调查、方案制定、安全评估、成本分析四个方面,构建了建筑物智能化拆除与固废管理系统,为实现信息化、可持续的建筑物拆除工作提供了新的思路。 相似文献
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为促进BIM技术在水利工程的应用,解决BIM和GIS集成的数据转换问题,基于对BIM的数据特征、IFC格式数据的结构层次、GIS系统的City GML数据格式以及City GML中语义信息和几何信息的细节层次结构进行详细分析的基础上,总结了BIM和GIS集成时IFC和City GML数据转换中存在的几个障碍。基于此,提出了可以实现BIM和GIS集成的IFC和City GML数据转换框架。并探讨了BIM和GIS集成系统在水利工程全生命周期中的应用和前景,为水利工程各个阶段应用BIM和GIS集成系统提供有利的参考建议。 相似文献
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本文研究在建筑信息模型BIM中记录文物建筑生命周期中的所有信息的方法,基于三维数字技术的全息几何模型的浏览,整体建筑的历史人文信息、设计与建造信息、灾害与维修信息的记录与查询,局部构件的物理属性、历史信息、施工工艺等记录与查询,基于BIM的文物建筑管理、文物建筑分析。为文物保护决策提供可靠依据,为文物建筑的研究提供最全面的信息。 相似文献
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在分析传统造价控制局限的基础上,基于BIM项目全生命周期造价控制模式,介绍了以BIM技术为核心的建筑项目信息集成平台、全生命周期造价控制模式及BIM技术在项目各阶段造价控制中的实施过程,剖析了构成参与方共享的BIM信息集成平台要素,建立基于BIM技术的工程项目全生命周期造价控制模式,并结合工程实例,分别从决策、设计、施工及竣工阶段对该模式进行验证。 相似文献
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BIM技术作为多维模型的建筑信息集成平台,集成了建筑物自设计到运营维护全生命周期的各种工程信息,在建筑物的设计、建造和运营维护阶段,有效利用BIM模型进行全生命周期的成本管理,对于工程的各参与主体具有重要的应用价值。 相似文献
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大直径公铁合建盾构隧道的施工过程较为复杂,为了将产生的信息更好的共享与管理,在施工前期建立基于GIS的BIM模型,BIM模型内的各构件信息包含了该构件的所有三维几何信息和施工信息,通过BIM模型链接施工全寿命周期内产生的信息,并研发建立BIM智慧指挥平台,从而指导项目管理。依托大直径公铁合建盾构隧道项目,将BIM技术覆盖至项目管理的全生命周期,包括隧道地质勘察、前期设计、设计碰撞核查、施工技术交底、工程进度可视化管理、大数据信息集成、安全质量监管与风险管控等阶段,为工程项目管理提供了良好的指导意义。 相似文献
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《Structure and Infrastructure Engineering》2013,9(9):1247-1263
AbstractWith growing complex infrastructure, autonomous condition assessment of large-scale structures has garnered significant attention over the past few decades. Data-driven structural health monitoring (SHM) techniques offer valuable information of existing health of the structures, maintain the safety and their uninterrupted use under varied operational conditions by undertaking timely risk and hazard mitigation. Traditional approaches, however, are not enough to monitor a large amount of SHM data and conduct systematic decision making for future maintenance. In this article, building information modeling (BIM) is utilised as a promising computing environment and integrated digital representation platform of SHM that can organize and visualise a considerable amount of sensor data and subsequent structural health information over a prolonged period. A BIM-enabled platform is utilised to develop the proposed visualisation tool for a long-span bridge and enable automated sensor data inventory into the BIM environment. Such automated tool facilitates systematic maintenance and risk management, while avoiding manual errors resulting from visual inspection of the structures. The proposed method can be considered as a user-friendly and economic framework for condition assessment and disaster mitigation of structures from long-term monitored data. 相似文献
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采用文献分析与问卷调研的方法研究了绿色建筑中BIM全流程应用的价值问题,提出了绿色建筑中BIM全流程应用各价值主体的多元价值需求,从而构建了BIM应用价值评价理论框架。同时,应用工程价值分解结构方法,对绿色建筑中BIM全流程应用价值进行结构分解,进而提取出绿色建筑中BIM全流程应用价值标准,最终构建了由价值主体、价值要素、价值标准等组成的绿色建筑BIM全流程应用价值评价体系。为绿色建筑BIM全流程应用价值评价及其应用价值提升策略制定奠定工作基础,并且对发挥BIM技术在绿色建筑项目设计、施工、运营等阶段的数据支撑作用意义重大。 相似文献
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建筑信息模型在工程项目管理中的研究和应用 总被引:3,自引:0,他引:3
从建筑信息模型的定义和发展现状出发,阐述了建筑信息模型在建设工程项目管理全寿命周期中的应用流程和特点,分析了工程项目管理信息系统框架,并对框架中各个模块的作用一一作了介绍. 相似文献
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The benefits of BIM such as effective decision making, improved analysis, easier access to information and simpler green building certification provide an optimised solution for sustainable design and construction. This study proposes an IFC-based framework within an integrated BIM and sustainable data model for the design stage of the building project life cycle. We present the green building assessment tool (GBAT), which implements the proposed model and aids the design team in the generation of documentation necessary for obtaining green building certification. It extracts the necessary data from BIM models for calculating the green rating and provides feedback for further evaluation. A sample project is run and a green rating score table for the BREEAM materials category is obtained for validation of the model. This tool serves as a proof of concept that green data relevant for BREEAM certification can be automatically processed and used to inform the design. 相似文献
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Construction safety is a national and worldwide issue. This paper contributes in solving this problem by applying automated safety rule checking to Building Information Models (BIM). Algorithms that automatically analyze a building model to detect safety hazards and suggest preventive measures to users are developed for different cases involving fall related hazards. As BIM is changing the way construction can be approached, the presented work and case studies extend BIM to include automated hazard identification and correction during construction planning and in certain cases, during design. A rule-based engine that utilizes this framework is implemented on top of a commercially available BIM platform to show the feasibility of the approach. As a result, the developed automated safety checking platform informs construction engineers and managers by reporting, why, where, when, and what safety measures are needed for preventing fall-related accidents before construction starts. The safety area reviewed is fall protection. An example case study of such a system is also provided. 相似文献
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以BIM技术全生命周期为核心理念,以实现隧道工程信息化管理为目标。覆盖隧道工程规划、设计、施工、运维各阶段,形成规划–设计–施工–运维一体化管理平台,促进业主、设计方、施工方、监理方等各工程参与方多方协同工作。针对BIM平台开发过程中BIM标准不统一、BIM软件众多、相互间数据交换困难等问题,初步提出了BIM全生命周期意义上的隧道工程协同管理平台,并从阶段、维度、功能、技术和用户多个层面详细阐述了BIM隧道协同管理平台的初步架构体系,为平台的进一步开发提供了一个基本思路和初期技术路线。 相似文献
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BIM广泛应用于建筑工程动态可视化管理、信息共享和决策支持中。针对复杂地质环境下的地铁隧道而言,地质模型的准确度决定了隧道的设计质量,影响施工及后期运营安全稳定,而这是BIM较为薄弱环节。以南宁地铁2号线为例,利用Revit的API进行二次开发,建立隧道BIM结构模型和基于地质数据库的三维地质模型,分别得出地铁隧道结构计算和岩土软件数值分析结果,结合项目实时施工进度、隧道结构变形数据、地面沉降数据、建筑物沉降倾斜数据等实时变形监测信息,进行反馈和验证。最终计算结果在web 监测平台上三维可视化,可辅助施工单位及时掌握相关信息并做出应急反应,从而实现BIM在复杂地质环境下地铁隧道三维可视化、结构分析以及安全预警预报的应用。 相似文献
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《Automation in Construction》2006,15(2):178-185
Today, building information modelling (BIM) plays a crucial role in the research and development fields of construction information integration and interoperability. This paper, from an information technology point of view, outlines the definition and aims of the “3D to nD Modelling” project, a platform grant-funded project by UK’s British Engineering and Physics Sciences Research Council (EPSRC). It presents a scenario of widening BIM implementation into the overall aspects involved in the whole life cycle of a building project. Industry foundation classes (IFC) as a standard BIM specification has been adopted as a central information repository in order to deliver the integrated building information throughout the nD-driven assessments, evaluation and decision-making. This paper also focuses on the development of an IFC-viewer, which is defined as the holistic interface of the nD modelling tool. The techniques and methods including the auxiliary tools adopted in this development are detailed. This development presents a practical and economic way to reveal and retrieve the information of IFC models inclusively, structurally and visually. 相似文献