Abstract
Quality control is essential to a successful modular construction project and should be enhanced throughout the project from design to construction and installation. The current methods for analyzing the assembly quality of a removable floodwall heavily rely on manual inspection and contact-type measurements, which are time-consuming and costly. This study presents a systematic and practical approach to improve quality control of the prefabricated modular construction projects by integrating building information modeling (BIM) with three-dimensional (3D) laser scanning technology. The study starts with a thorough literature review of current quality control methods in modular construction. Firstly, the critical quality control procedure for the modular construction structure and components should be identified. Secondly, the dimensions of the structure and components in a BIM model is considered as quality tolerance control benchmarking. Thirdly, the point cloud data is captured with 3D laser scanning, which is used to create the as-built model for the constructed structure. Fourthly, data analysis and field validation are carried out by matching the point cloud data with the as-built model and the BIM model. Finally, the study employs the data of a removable floodwall project to validate the level of technical feasibility and accuracy of the presented methods. This method improved the efficiency and accuracy of modular construction quality control. It established a preliminary foundation for using BIM and laser scanning to conduct quality control in removable floodwall installation. The results indicated that the proposed integration of BIM and 3D laser scanning has great potential to improve the quality control of a modular construction project.
Highlights
Modular construction is the process where projects consist of individual sections, prefabricated in an off-site controlled manufacturing facility, and assembled at the construction site
This paper introduces a framework that integrates the use of building information modeling (BIM) and 3D laser scanning technology to enable rapid analysis of the assemble quality of anchor plates and other components for a removable floodwall
The results indicate that the proposed integration of BIM and 3D laser scanning can produce a rapid and reliable method to proactively control the assemble quality of anchor plates for removable floodwall during field installations
Summary
Modular construction is the process where projects consist of individual sections, prefabricated in an off-site controlled manufacturing facility, and assembled at the construction site. Traditional floodwalls are mainly constructed from concrete and metal elements This system requires a large land area, which may restrict access to the structure. There is a research gap on how to control the quality in the install stage of modular construction with the integrated method of BIM and laser scanning. This paper introduces a framework that integrates the use of BIM and 3D laser scanning technology to enable rapid analysis of the assemble quality of anchor plates and other components for a removable floodwall. The researchers first conducted a thorough literature review of laser scanning and BIM in modular construction quality control. The results indicate that the proposed integration of BIM and 3D laser scanning can produce a rapid and reliable method to proactively control the assemble quality of anchor plates for removable floodwall during field installations
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