Research on Carbon Emission Accounting and Emission Reduction Strategy of the Whole Life Cycle of Architectural Membrane Structure

Membrane structure has the advantages of green environmental protection and sustainable development, and is an important research direction for China to achieve energy conservation and emission reduction in the field of buildings. There are no studies on carbon trace tracking, carbon emission accounting, and carbon emission factor statistics of building membrane structures at home and abroad. Based on the above background, this study aims to propose a calculation strategy for the carbon emissions of the whole life cycle of building membrane structures and analyze the key factors affecting emissions. By adopting a comprehensive carbon emission assessment method, combined with Life Cycle Assessment (LCA) and carbon source tracking calculation, the whole life cycle of a typical building membrane structure was studied in detail, and carbon emission calculation models at different stages were established to calculate the carbon emissions at each stage. The results show that the carbon emissions generated in the production stage of the membrane structure project are 8 621.61 kgCO₂e, accounting for 79.75%, which is the main source of carbon emissions in the whole life cycle of the structure, followed by the construction stage, accounting for 16.53%, and the transportation stage and service dismantling stage accounted for a small proportion; It is suggested that the membrane structure should further optimize the production process in the production stage, adopt energy-saving technology and equipment, and renewable energy to reduce carbon emissions in the production process of materials. This study provides an important data reference for the carbon accounting of membrane structures, and provides important support for the high-quality and sustainable development of membrane structures.