Traditional construction project management approaches suffer from technical isolation and process deficiencies, particularly in whole-life-cycle model coordination. This paper addresses how to develop a comprehensive management framework that optimizes model coordination through technology integration. This multi-technology integration framework combines CAD drawings, Building Information Modeling (BIM), immersive technology, and 3D Gaussian Splatting scanning while implementing ISO 19650 standards for information management. A hospital project case study was used and validated featuring complex structural and mechanical, electrical, and plumbing (MEP) coordination scenarios. This empirical study demonstrated an approximate 22%-35% reduction in pipeline dismantling rates, 40% shorter review cycles for complex nodes, and significantly improved construction quality verification accuracy. These outcomes highlight how technological synergies can overcome traditional management limitations and establish a robust foundation for future engineering projects. Future research should validate the framework across diverse project types, explore additional integrated technologies, and conduct long-term impact assessments during operation phases.

Steel reinforcement is one of the most important materials used in the construction industry. This research optimizes reinforcement bar fabrication by integrating Building Information Modeling (BIM) with visual programming in Dynamo. On-site rebar cutting and bending generate significant material waste, increasing costs and environmental impact. To address this, an intelligent Dynamo script was developed to extract detailed 3D rebar and 4D scheduling data from BIM models. The script optimizes material usage by specifying cut-off lengths to improve reuse and minimize waste. Validation through two real-world case studies demonstrated the method’s significant potential. Effectiveness was assessed using benchmarks comparing the number of bars saved, waste reduced, and overall cost savings. The study confirms that optimized fabrication significantly cuts waste and cost. Its effectiveness, however, varies with rebar type and structural component, with the most significant gains observed in medium-length bars and pile caps. By offering a novel tool for sustainable construction, this research advances BIM-enabled reinforcement design and material optimization.