在评估建筑结构方案时,环境因素的考虑越发重要。作为评价建筑环境的指标之一,碳足迹的研究和计算成为近年来环境评估研究的热点。大跨建筑结构广泛应用于商业建筑、公共建筑和文化建筑,其生命周期碳排放对于环境的影响十分显著。隐含碳在大跨建筑结构生命周期碳足迹中占有重要比例。本文对大跨建筑结构隐含碳的分析方法进行了探讨,并提出了以隐含碳为评价指标对大跨建筑结构进行方案选型的方法。 Environmental considerations are increasingly important when evaluating building structures. As one of the indicators to evaluate the construction environment, the research and calculation of carbon footprint has become a hot research topic in environmental assessment in recent years. Long-span structures are widely used in commercial buildings, public buildings and cultural buildings. Their life-cycle carbon emissions have a significant impact on the environment. Implied carbon holds a significant proportion of the carbon footprint of the long-span life cycle of building structures. In this paper, the analysis method of hidden carbon in long-span building structure is discussed, and the method of selecting scheme for long-span building structure with hidden carbon as evaluation index is put forward.