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Improving project communication in the architecture, engineering and construction industry: Coupling virtual reality and laser scanning
摘要： In recent years, the demand for accurate, clear and easy-understandable information has been steadily rising within the Architecture, Engineering and Construction (AEC) industry’s stakeholders. Despite this, a sizeable portion of this industry still considers the traditional approach to Construction Engineering, disregarding major innovations and technologic advances. This not only poses a great obstacle to proper communication between project-related entities but also presents a significant challenge for retrofitting projects. This article proposes a workflow for the improvement of communication in construction projects, in particular between professionals who lack specific BIM skills. Thus, by coupling laser scanning and Virtual Reality (VR), within a Building Information Modelling (BIM) work environment, this workflow comprises the entire process from on-site geometric data acquisition, through data treatment and analysis, culminating with the point-cloud importation into a game engine and the development of navigation and interaction tools within the VR environment. The framework is validated through its application to a proof of concept, from which conclusions regarding the workflow success, limitations, optimization, among other topics are discussed.
关键词： Project communication,Building retrofitting,Laser scanning surveying,Building Information Modelling,Virtual Reality
更新于2025-09-23 15:21:01
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Integration of point cloud data and hyperspectral imaging as a data gathering methodology for refurbishment projects using building information modelling (BIM)
摘要： Purpose – Building information modelling (BIM) is a digital representation of the physical and functional characteristics of a building. Its use offers a range of bene?ts in terms of achieving the ef?cient design, construction, operation and maintenance of buildings. Applying BIM at the outset of a new build project should be relatively easy. However, it is often problematic to apply BIM techniques to an existing building, for example, as part of a refurbishment project or as a tool supporting the facilities management strategy, because of inadequacies in the previous management of the dataset that characterises the facility in question. These inadequacies may include information on as built geometry and materials of construction. By the application of automated retrospective data gathering for use in BIM, such problems should be largely overcome and signi?cant bene?ts in terms of ef?ciency gains and cost savings should be achieved. Design/methodology/approach – Laser scanning can be used to collect geometrical and spatial information in the form of a 3D point cloud, and this technique is already used. However, as a point cloud representation does not contain any semantic information or geometrical context, such point cloud data must refer to external sources of data, such as building speci?cation and construction materials, to be in used in BIM. Findings – Hyperspectral imaging techniques can be applied to provide both spectral and spatial information of scenes as a set of high-resolution images. Integrating of a 3D point cloud into hyperspectral images would enable accurate identi?cation and classi?cation of surface materials and would also convert the 3D representation to BIM. Originality/value – This integrated approach has been applied in other areas, for example, in crop management. The transfer of this approach to facilities management and construction would improve the ef?ciency and automation of the data transition from building pathology to BIM. In this study, the technological feasibility and advantages of the integration of laser scanning and hyperspectral imaging (the latter not having previously been used in the construction context in its own right) is discussed, and an example of the use of a new integration technique is presented, applied for the ?rst time in the context of buildings.
关键词： Laser scanning,Information modelling,Refurbishment,BIM,Point cloud,Hyperspectral imaging
更新于2025-09-10 09:29:36