Building Information Modeling-Life Cycle Assessment: A Novel Technology for Rapid Calculation and Analysis System for Life Cycle Carbon Emissions of Bridges

With the rapid development of bridge construction, environmental concerns have become increasingly prominent. Low-carbon, green, and sustainable bridge engineering has emerged as an inevitable trend. A comprehensive carbon emission calculation system is key to achieving low-carbon bridges. This study proposes a rapid calculation and analysis system for bridge carbon emissions (Building Information Modeling-Life Cycle Assessment, BIM-LCA). This system, using the bridge information model as a carrier, calculates and manages data on material consumption, machinery, transportation, and energy throughout the bridge's life cycle. It then calculates the carbon emissions for each stage. This system simplifies the complex and cumbersome data collection and analysis processes found in traditional methods while also making the carbon emissions across the full bridge life cycle more accessible and visible. Being applicable to all types of bridges, this system can provide insights and a basis for decision-making in the early design stages and during construction and operation to support carbon reduction. Ultimately, it promotes low-carbon, environmentally friendly, and sustainable bridge engineering development.