Laser-based sensing for assessing and monitoring civil infrastructures

Yu, Tzuyang

doi:10.1016/b978-0-08-102696-0.00007-5

Cited by 2 publications

(2 citation statements)

References 63 publications

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“…The use of laser scanning technology is a common method for collecting 3D geometrical data from existing buildings due to its high accuracy and sufficient geometric data embedded in the collected data (Wang et al, 2015;Wang et al, 2022;Truong-Hong & Lindenbergh, 2022). This technique which has been widely adopted is considered superior to traditional survey methods, thus making it the most commonly used data collection technique (Yu, 2022;Alaloul et al, 2021). Typically, PCD which is an unordered list of points that represent the surfaces of objects and their surrounding environment in a 3D space can be used for a variety of applications such as modelling, simulation, and analysis.…”

Section: Review Of Existing Workmentioning

confidence: 99%

Methodology for retrospectively developing a BIM model from point cloud scans using ongoing building project as case study

Lawani,

Sadeghineko,

Tong

et al. 2024

JEDT

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Purpose The purpose of this study is to explore the suggestions that construction processes could be considerably improved by integrating building information modelling (BIM) with 3D laser scanning technologies. This case study integrated 3D laser point cloud scans with BIM to explore the effects of BIM adoption on ongoing construction project, whilst evaluating the utility of 3D laser scanning technology for producing structural 3D models by converting point cloud data (PCD) into BIM. Design/methodology/approach The primary data acquisition adopted the use of Trimble X7 laser scanning process, which is a set of data points in the scanned space that represent the scanned structure. The implementation of BIM with the 3D PCD to explore the precision and effectiveness of the construction processes as well as the as-built condition of a structure was precisely captured using the 3D laser scanning technology to recreate accurate and exact 3D models capable of being used to find and fix problems during construction. Findings The findings indicate that the integration of BIM and 3D laser scanning technology has the tendency to mitigate issues such as building rework, improved project completion times, reduced project cost, enhanced interdisciplinary communication, cooperation and collaboration amongst the project duty holders, which ultimately enhances the overall efficiency of the construction project. Research limitations/implications The acquisition of data using 3D laser scanner is usually conducted from the ground. Therefore, certain aspects of the building could potentially disturb data acquisition; for example, the gable and sections of eaves (fascia and soffit) could be left in a blind spot. Data acquisition using 3D laser scanner technology takes time, and the processing of the vast amount of data acquired is laborious, and if not carefully analysed, could result in errors in generated models. Furthermore, because this was an ongoing construction project, material stockpiling and planned construction works obstructed and delayed the seamless capture of scanned data points. Originality/value These findings highlight the significance of integrating BIM and 3D laser scanning technology in the construction process and emphasise the value of advanced data collection methods for effectively managing construction projects and streamlined workflows.

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Section: Review Of Existing Workmentioning

confidence: 99%

Methodology for retrospectively developing a BIM model from point cloud scans using ongoing building project as case study

Lawani,

Sadeghineko,

Tong

et al. 2024

JEDT

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“…Since acceleration and displacement can be derived from velocity, this technique is a ubiquitous resource for experimental modal analysis and structural health monitoring. The high precision afforded by contemporary LDV systems has seen their use in a wide range of applications in which non-contact measurement is beneficial, from microscopic organic tissue to large civil structures [39][40][41]. A noteworthy application of LDV is in the modal analysis of ultra-light structures, for which the mass of even relatively lightweight contactmeasurement sensors, such as miniature accelerometers, is enough to bias results [38,42,43].…”

Section: Laser Doppler Vibrometry As a Technology For Post-welding Ev...mentioning

confidence: 99%

Laser Doppler Vibrometry for Evaluating the Quality of Welds in Lithium-Ion Supercells

Ratner

Wood

Chowanietz³

et al. 2022

Energies

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The inspection of the quality of welds in battery packs plays an important role in ensuring safety during the manufacturing and operation of energy-storage devices in automotive vehicles during service. This research investigated the novel application of laser Doppler vibrometry, a widely used non-destructive optical technique for modal analysis, to the post-weld evaluation of micro-TIG-welded interconnections in lithium-ion supercells. The experimental modal analysis showed features in the modal models of the supercells that were unique to their welding conditions. The comparisons between the supercells showed an absence of linear correlations between the modal parameters and the welding current, as well as differences in the welding parameters obtained from the negative and positive terminals of the cylindrical cells. These findings suggested that the modal parameters of the supercells were more strongly influenced by the rigidity of the structural materials than by the localized compliance of the welded interconnections. While this investigation demonstrated a method for using laser Doppler vibrometry to distinguish between different welding conditions in lithium-ion supercells at a structural level, further development is needed to identify the weld quality of individual interconnections.

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Laser-based sensing for assessing and monitoring civil infrastructures

Cited by 2 publications

References 63 publications

Methodology for retrospectively developing a BIM model from point cloud scans using ongoing building project as case study

Methodology for retrospectively developing a BIM model from point cloud scans using ongoing building project as case study

Laser Doppler Vibrometry for Evaluating the Quality of Welds in Lithium-Ion Supercells

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