1.北京林业大学材料科学与技术学院,北京 100083
2.北京林业大学水土保持学院,北京 100083
3.林创咨询(上海)有限公司北京分公司,北京 100020
4.北京城建集团有限责任公司土木工程总承包部,北京 100088
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李瑜,梅诗意,孟鑫淼等.基于全生命周期评价法的雄安新区某木混结构建筑碳排放及其减碳效果研究[J].木材科学与技术,2022,36(05):63-70.
LI Yu,MEI Shi-yi,MENG Xin-miao,et al.Study on Carbon Emission and Its Reduction Effect of Timber-Concrete Constructions in Xiong’an New District Based on Life Cycle Assessment[J].Chinese Journal of Wood Science and Technology,2022,36(05):63-70.
为分析河北雄安新区白洋淀码头的3栋木混结构建筑较等效钢混结构建筑的减碳效果，根据等效替换因子，确定等效钢混结构建筑建材用量，并依照GB/T 51366—2019《建筑碳排放计算标准》，基于全生命周期评价法，对3栋木混结构建筑及等效钢混结构建筑进行碳排放计算。结果表明，木混结构建筑的减碳效果主要体现在建材生产及运输阶段，建造及拆除阶段碳排放差异较小。与等效钢混结构建筑相比，木混结构建筑在建材生产阶段的碳排放下降约10%，考虑木材碳固存量则下降约19%。木混结构建筑地上部分建材生产阶段的碳排放下降18%~25%，考虑木材碳固存量则下降40%~46%。
In order to study the effect of three timber-concrete constructions on the carbon reduction in Baiyangdian Wharf of Xiong'an new area in Hebei Province, it was compared with the equivalent steel-concrete constructions. In this paper, according to the equivalent replacement factor, the amount of building materials of equivalent steel-concrete constructions was determined. In accordance with GB/T 51366—2019 ,Standard for building carbon emission calculation, the carbon emission of three timber-concrete constructions and equivalent steel-concrete constructions were calculated by using the life-cycle assessment method. The results showed that the carbon reduction effect of timber-concrete constructions was mostly reflected in building material production and transportation period, and the carbon emission difference in construction and demolition period was relatively small. Compared with equivalent steel-concrete constructions, the carbon emission of timber-concrete constructions decreased about 10% in material production period, and about 19% in terms of carbon sequestration of wood. Carbon emission of the above-ground timber-concrete constructions decreased about 18%~25% in material production period, and about 40%~46% after considering carbon sequestration.
木结构建筑等效钢混结构碳排放碳固存全生命周期评价
timber constructionsequivalent steel-concrete constructionscarbon emissioncarbon sequestrationlife-cycle assessment
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