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Abstract

This dissertation investigates the integration of Building Information Modeling (BIM) coordination and 3D laser scanning technology to enhance the accuracy and efficiency of as-built models in complex construction projects. The research is directly tied to my professional role, where I was responsible for delivering a highly accurate BIM as-built model for a datacenter construction project in Copenhagen. The challenges faced during this project, along with the lack of comprehensive research on the topic, motivated this study.
BIM has revolutionized the Architecture, Engineering, and Construction (AEC) industry by providing detailed digital representations of physical structures. However, the accuracy of BIM as-built models is often compromised by issues such as inadequate data capture, inconsistent data processing, and misalignment between construction systems. These challenges can lead to project delays, increased costs, and reduced efficiency. To address these issues, this research explores the integration of 3D laser scanning technology, using the Trimble X7 scanner, with BIM coordination processes.
The Copenhagen data center project serves as a case study to validate this integration. The Trimble X7’s precision and automatic calibration features were crucial for capturing detailed spatial data, which was then processed using Trimble RealWorks software. This approach ensured that the final as-built models adhered to the stringent accuracy requirements, particularly in the placement of critical infrastructure components.
The research highlights the importance of precision in as-built BIM models, particularly in environments like data centers where even minor inaccuracies can lead to significant operational challenges. Integrating 3D laser scanning with BIM coordination allowed for continuous alignment of design models with actual construction conditions, reducing manual measurement errors and facilitating real-time updates within the BIM environment.
This dissertation proposes a comprehensive framework for the seamless integration of 3D laser scanning and BIM coordination, based on the lessons learned from the Copenhagen project. The framework covers the entire workflow, from data acquisition to model handover, and offers practical recommendations for overcoming common challenges, such as data management and software compatibility.
This research fills a significant gap in the existing literature and offers practical solutions for improving the accuracy and efficiency of BIM as-built models in complex construction projects. The findings underscore the need for further research to explore the scalability of the proposed framework and assess the long-term benefits of accurate as-built models for facility management and maintenance 

Course: Building Information Management - MSc - P2657FTC

Date Deposited: 2025-01-16

URI/permalink: https://library.port.ac.uk/dissert/dis14657.html