基于生命周期理论的建筑碳足迹分析

Analysis of Building Carbon Footprint Based on the Life Cycle Assessment Theory

依据建筑全生命周期理论,通过《建筑碳排放计量标准》规定的方法和步骤,对目标建筑—世博生态城低碳中心材料生产阶段、施工建造阶段、运行维护阶段、拆解阶段产生碳足迹进行了核算,分析了各生命周期阶段的碳足迹构成情况。核算结果表明:该建筑的碳足迹主要来源于材料生产阶段,占比为64.5%,其中钢材和水泥的碳排放量最大。

Based on the life cycle assessment theory,the carbon footprint of the building phases including material production,construction,operation and dismantling were calculated according to the method and processes that regulated by Standard for measuring,accounting and reporting of carbon emission from buildings.The carbon footprint constitution of different phases was also analyzed.The results showed that the most carbon emission came from the phase of material production,accounting for 64.5%,in which steel and concrete contributed most.The results of this study would provide theory support for the construction enterprises to carry out low carbon design and construction plan optimization.