摘要
为探寻不同结构住宅建筑全生命周期碳排放的差异,本文基于全寿命周期理论,在对国内外已有的建筑碳排放测算结果归一化的基础上,构建了静态及动态的建筑碳排放流模型,应用该模型模拟研究了混凝土结构、钢结构及木结构3种结构住宅建筑在全生命周期的碳排放流,其中包括隐含碳排放期阶段、建筑运营期阶段、建筑废弃及回收期阶段的碳排放流。研究结果表明:1)3种结构住宅建筑全生命周期的静态碳排放流量由大到小依次为钢结构住宅建筑的碳排放流量(1849)、混凝土结构住宅建筑的碳排放流量(1 778)、木结构住宅建筑的碳排放流量(1 230);2)3种结构住宅建筑全生命周期各阶段的时点碳排放流比较结果:隐含碳排放期阶段碳排放流由大到小依次为钢结构住宅建筑碳排放流(451)、混凝土结构住宅建筑碳排放流(378),木结构住宅建筑的碳排放流(172);建筑运行期阶段碳排放流由大到小依次为钢结构住宅建筑碳排放流(29)、混凝土结构住宅建筑碳排放流(28),木结构住宅建筑的碳排放流(26);废弃及回收期阶段碳排放流主要表现为负碳排放,钢结构建筑和木结构的负碳排放流量相近,分别为-52、-53,凝土结构的负碳排放流为-0.3,几乎可以忽略。
In order to explore the differences of carbon emission in the full life circle of residential buildings of different structures,this paper sets up static and dynamic building carbon emission flow models,after normalization of the existing measuring results of building carbon emission at home and abroad,based on the theory of full life circle. Then,the model is adopted to study the carbon emission flow of three kinds of residential building structures,namely,concrete structure,steel structure,and wooden structure in the full life circle,including the implicit carbon emission stage,building operation stage,and building abandonment and recycling stage. The research results indicate that: 1) ranking of the static carbon emission amount of three structures in the full life circle in descending order: steel structure residential building carbon emission( 1 849),concrete structure residential building carbon emission( 1 778),wooden structure residential building carbon emission( 1 230); 2)ranking of the dynamic carbon emission amount of three structures in the full life circle in descending order: a)implicit carbon emission stage: steel structure residential building carbon emission( 451),concrete structure residential building carbon emission( 378),wooden structure residential building carbon emission( 172); b)building operation stage: steel structure residential building carbon emission( 29),concrete structure residential building carbon emission( 28), wooden structure residential building carbon emission( 26); c) building abandonment and recycling stage: mainly negative carbon emission; steel structure building carbon emission(-52),wooden structure building carbon emission(- 53),concrete structure building carbon emission(- 0. 3),which is almost negligible.
出处
《建筑科学》
CSCD
北大核心
2015年第6期26-34,共9页
Building Science
基金
国家自然科学基金项目"LCA视角下宏观建筑碳排放结构特性
演化机理及区域化减排机构研究"(71303082)
教育部人文社会科学规划青年基金项目"不同结构建筑碳排放流模拟及优化--基于工程经济学的视角"(13YJCZH194)
浙江农林大学人才引进项目(2012FR029)
关键词
碳排放流
混凝土结构
钢结构
木结构
模拟
carbon emission flow
concrete structure
steel structure
wooden structure
simulation