Abstract
Existing structural safety diagnosis methods are time-consuming due to personnel-oriented measurement methods and have a limitation that it is difficult to obtain consistent research results. In order to overcome these limitations, this study proposes a structural safety diagnosis method using laser scanning and BIM. In spite of the various studies related to laser scanning and BIM, it is difficult to find a study that verifies the effect of shortening the service period and cost reduction in terms of project management. Therefore, in this study, case analysis of structural safety diagnosis of large-scale civil infrastructure was conducted. In the structural safety diagnosis, the laser scanning data and the BIM model were compared and analyzed to determine the degree of deformation of pipe rack (e.g., truss, column). Laser scanning data reflects the deformation state of large-scale civil infrastructure. On the other hand, the BIM model was constructed by reflecting the state before the transformation with reference to the laser scanning data. Finally, proposed method of structural safety diagnosis saved four months. In terms of manpower saving, 125 man-month was saved. The research findings can provide a quantitative basis for the introduction of laser scanning and BIM technology in the structural safety diagnosis of aging large-scale civil infrastructures. However, the limitations of this study have not been analyzed economically by considering the investment cost (e.g., hardware, software, training, etc.) of laser scanning and BIM technology and the cost saving effect of technology introduction.
Highlights
Facility management is important for AEC/facility management (FM) organizations to maintain a sustainable business [1,2]
In this study, we will examine the effect of structural safety diagnosis of large-scale civil infrastructure using laser scanning and building information modeling (BIM)
This paper reported a case study to improve the structural safety diagnosis of large-scale civil infrastructure using laser scanning and BIM technologies
Summary
Facility management is important for AEC/FM organizations to maintain a sustainable business [1,2]. The prevalent method of safety inspection derives risk factors through comprehensive visual inspection, operational status check, and diagnostic equipment based on checklists for each facility and type of infrastructure. This process of safety inspection requires the long-term input of numerous personnel [4,12]. As this method involves the inspection of large-scale civil infrastructure through separate measurements, it is challenging to obtain consistent results of inspection, because the outcomes of safety diagnosis can differ depending on the capabilities of the engineers. In this study, we will examine the effect of structural safety diagnosis of large-scale civil infrastructure using laser scanning and BIM
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