BIM-Based Calculation and Optimization of Life Cycle Carbon Emissions for a Public Building

School of Land Resources and Surveying Engineering, Shandong Agriculture And Engineering University, Zibo, China

^* Jinyuan Zang: This email address is being protected from spambots. You need JavaScript enabled to view it. Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

Under the guidance of the “dual carbon” goals (carbon peaking and carbon neutrality), the low-carbon transition of the construction industry has become a key issue in national strategy. But, the existing carbon emission calculation methods generally have the problems of high calculation complexity and shortcomings in the full life cycle. This study adopts a BIM-based method to calculate and improve the life cycle carbon emissions. In this example, a case of a public building is selected, and Glodon GTJ and GQI software are used for model quantity takeoff, and GCCP is used to extract labor, materials, and machinery data. Such data are further imported into the building performance analysis platform and the Donghe Carbon Emission Platform to establish the life cycle carbon emission model. It shows that before optimization, the total carbon emissions are 67011.66 tons, with the operational stage having the highest proportion. Therefore, carbon reduction measures are targeted at this stage. Post-optimization, the total life cycle carbon emissions are reduced by 37.0%, demonstrating a significant emission reduction effect. This study highlights the immense potential of BIM tools and digital platforms in energy conservation and emission reduction, providing practical technical methods for the green and low-carbon development of buildings.