Automatic compliance inspection and monitoring of building structural members using multi-temporal point clouds

Mirzaei, Kaveh; Arashpour, Mehrdad; Asadi, Ehsan; Feng, Haibo; Mohandes, Saeed Reza; Bazli, Milad

doi:10.1016/j.jobe.2023.106570

Cited by 4 publications

(1 citation statement)

References 53 publications

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“…As a result, cracks with a maximum width of 2 mm could be measured. In addition, Mirzaei et al [14] developed a framework that could generalize the inspection and monitoring of beam deflection and inclination, column inclination, etc. This was achieved through the analysis of point cloud data and the recognition of structural members if the surface characteristics met specific conditions and were applied to steel structures.…”

Section: Structural Performance Assessment Methods For Existing Build...mentioning

confidence: 99%

Preliminary Assessment Method for Structural Performance (PAMSP) of RC Rahmen Structure Building during Scan-to-BIM Procedure

Cho,

Mun,

Park

et al. 2024

Sustainability

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Safety diagnosis through the surface inspection of existing buildings is a crucial fundamental inspection. However, the assessment results often differ depending on the investigator’s knowledge and experience, which poses challenges in ensuring the reliability and objectivity of the evaluation results. To address this issue, a preliminary assessment method for structural performance (PAMSP) of an RC Rahmen structure building was developed in this study to evaluate three surface survey items (cracks, horizontal deflections, and vertical deflections), which have a significant influence on the structural performance evaluation of buildings. The PAMSP can be operated based on point cloud data generated during the scan-to-building information modeling (BIM) process. Based on the results of two case studies, the PAMSP was found to be excellent in terms of accuracy, applicability, and ease of use. In conclusion, by using the PAMSP, it is expected that the fundamental structural performance of a building can be measured more objectively and reliably based on the data generated during the scan-to-BIM process, which is widely used in the digitization of existing buildings.

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Section: Structural Performance Assessment Methods For Existing Build...mentioning

confidence: 99%

Preliminary Assessment Method for Structural Performance (PAMSP) of RC Rahmen Structure Building during Scan-to-BIM Procedure

Cho,

Mun,

Park

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

Ultra-sensitive pressure sensor with low-temperature crosstalk based on the Vernier effect and helical structure

Wang,

et al. 2024

Opt. Express

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What we believe to be a novel high-sensitivity fiber-optic pressure sensor based on the vernier effect and helical structure is proposed and experimentally verified. The sensor utilizes the superposition of higher-order mode Mach-Zehnder interference and Sagnac fundamental mode polarization interference in a single fiber ring to achieve the vernier effect. In addition, a non-invasive encapsulation structure was fabricated to convert the rise and fall of the pressure value into the change in the twist angle of the optical fiber. This approach reduces the interference of the detecting medium on the sensor signal while simultaneously increasing the sensitivity of the pressure sensor. According to experimental data, the detection sensitivity of the sensor can reach −67277 nm/MPa, which is 65 times higher than the sensitivity of the conventional vernier effect pressure sensor. It also solves the issue of temperature interference with the Vernier-effect structured fiber optic sensor. The sensor has a measured temperature cross-sensitivity of 0.000065 kPa/°C, which is significantly lower than that of comparable sensors. This makes the sensor highly sensitive and ideal for low crosstalk pressure measurement.

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Pre-Processing and Analysis of Building Information Models for Automated Geometric Quality Control

Bueno,

Bosché

2023

Preprint

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Automatic compliance inspection and monitoring of building structural members using multi-temporal point clouds

Cited by 4 publications

References 53 publications

Preliminary Assessment Method for Structural Performance (PAMSP) of RC Rahmen Structure Building during Scan-to-BIM Procedure

Preliminary Assessment Method for Structural Performance (PAMSP) of RC Rahmen Structure Building during Scan-to-BIM Procedure

Ultra-sensitive pressure sensor with low-temperature crosstalk based on the Vernier effect and helical structure

Pre-Processing and Analysis of Building Information Models for Automated Geometric Quality Control

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