Monitoring plays a vital role in bridge construction, ensuring safety and accuracy throughout the process. Using the Fenghua River Bridge as a case study, the application of BIM technology in construction monitoring can be summarized as follows:
BIM virtual construction technology supports bridge construction monitoring and management in several key ways:
1) Finite Element Analysis of Construction Stages
The BIM team provides construction models to the design unit for finite element analysis at each construction phase. This analysis evaluates stress and deformation of bridge components, and the results are shared with the construction, monitoring, and BIM teams. The analysis data is then integrated back into the BIM model.
2) Supplying Design Alignment Data
At the request of the construction monitoring unit, the BIM team extracts design alignment data for each construction stage directly from the Fenghua River Bridge BIM model. This data serves as a reference during installation alignment reviews, with the 3D model facilitating visual comparison and analysis.
3) Construction Simulation to Enhance Safety
By combining the construction plan and schedule, a 4D construction simulation is created to preview the entire process. This helps verify whether the machinery models, site layout, and operational areas meet construction requirements, providing essential technical support to maintain safety on site.
4) Real-Time Construction Data Monitoring
Fixed and mobile devices collect real-time construction data, which is transmitted wirelessly to the BIM cloud or backend servers. This enables continuous monitoring of site deformation based on the BIM model, ensuring the accuracy and reliability of the monitoring information.
5) 3D Comparison of Monitoring Data for Analysis
Monitoring data from construction and inspection teams is compared against the bridge alignment data within the BIM software. Deviations are visualized in 3D, allowing the construction monitoring team to analyze discrepancies effectively. This feedback loop supports timely corrections to installation alignment, controlling construction deviations and ensuring overall safety as the project progresses.
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