圆竹结构景观建筑全生命周期碳排放分析  

Analysis on life cycle assessment for carbon emission of round bamboo structure landscape architecture

作　　者：张展诚 李瑜 孟鑫淼 刘可为[3,4] 高颖 王军龙[5] ZHANG Zhancheng;LI Yu;MENG Xinmiao;LIU Kewei;GAO Ying;WANG Junlong(School of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China;School of Material Science and Technology,Beijing Forestry University,Beijing 100083,China;International Bamboo and Rattan Organization,Beijing 100102,China;School of Civil Engineering,Tsinghua University,Beijing 100084,China;Hangzhou Bamboo Technology Co.,Ltd.,Hangzhou 310018,China)

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]北京林业大学材料科学与技术学院,北京100083 [3]国际竹藤组织,北京100102 [4]清华大学土木水利学院,北京100084 [5]杭州邦博科技有限公司,杭州310018

出　　处：《建筑结构》2023年第17期24-29,13,共7页Building Structure

基　　金：国家自然科学基金项目(51908038)。

摘　　要：竹材具有顺纹强度高的力学特点、天然固碳的生态优势和坚韧气节的文化属性,已逐渐成为景观建筑的重要建筑材料。近年来,圆竹结构力学性能、节点设计的相关研究较为深入,但其碳排放方面的研究较少涉及。为探究圆竹结构景观建筑的全生命周期碳排放及其减排效果,以2021年扬州世界园艺博览会国际竹藤组织馆“鱼乐竹馆”为研究对象,提出圆竹建材碳排放因子计算方法,并依照《建筑碳排放计算标准》(GB/T 51366—2019),对该馆进行了全生命周期碳排放计算,分析圆竹固碳特性对圆竹建筑全生命周期碳排放的减排效果的影响。结果表明,“鱼乐竹馆”的全生命周期碳排放量为37362.96kgCO_(2)e,其中建材生产阶段碳排放在全生命周期中的占比较高,为66.70%。由于竹材的固碳特性,建材生产阶段的总碳排放量为负值,为-32000.15kgCO_(2)e,实现了负碳设计。与未考虑竹材固碳相比,圆竹结构景观建筑在建材生产阶段减碳效果最为明显,该阶段碳排放量降低了约228.40%,在建筑全生命周期碳排放量中降低了约152.35%。运行阶段的电力消耗产生的碳排放量在圆竹结构景观建筑全生命周期碳排放量中占比24.63%,如果采用太阳能、风能等清洁能源,可实现碳排放量的进一步降低。Due to its mechanical characteristics with high strength parallel to grain,ecological advantages of carbon storage and cultural attributes of tenacity,bamboo has gradually become an important construction material for landscape architecture.In recent years,the study on the mechanical properties and joint design of round bamboo structures has been carried out broadly and deeply,but the research on its carbon emission is less investigated.In order to study the life cycle assessment of carbon emission and carbon reduction effect of round bamboo structure landscape architecture,the“Bamboo Fish Pavilion”at International Bamboo and Rattan Organization Garden of 2021 Yangzhou Horticultural Expo was taken as a case study.A calculation method to determine the carbon emission factor of round bamboo culms was proposed.By using the Standard for building carbon emission calculation(GB/T 51366—2019),the life cycle carbon emissions of the‘Bamboo Fish Pavilion’was assessed.The influence of carbon storage characteristics of round bamboo on the carbon reduction effect of the life cycle carbon emission of round bamboo structure was also analyzed.The results show that the life cycle carbon emissions of the“Bamboo Fish Pavilion”are 37362.96kgCO_(2) e.The proportion of carbon emissions during the production phase is relatively high,accounting for 66.70%of the total life cycle emissions.Due to the carbon storage characteristics of bamboo,the carbon emissions in the production phase of building materials are negative,specifically-32000.15kgCO_(2) e,which achieves negative carbon design.Compared with not considering the carbon storage of bamboo,the effect of reducing carbon emissions is most significant in the production phase of building materials for the round bamboo structure landscape architecture.The carbon emissions in this phase are reduced by about 228.40%,and the carbon emission in the life cycle of the building is reduced by 152.35%.The carbon emissions in the operation phase account for 24.63%in the life cycle ca

关 键 词：圆竹结构景观建筑 碳排放 圆竹碳排放因子 全生命周期评价 竹材固碳 

分 类 号：TU366[建筑科学—结构工程]