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文章编号： 基于全寿命周期碳足迹核算模型的桥梁 碳强度模糊综合评价 孙晓燕1 董伟伟1 王海龙1* 王捷2 （1 浙江大学 建筑工程学院，浙江 杭州，310058 2 斯坦福大学 土木与环境工程学系, 美国 加利福尼亚州CA94305-4020） 摘要：为了量化桥梁全寿命周期内的碳足迹，依据时间系列将整个桥梁寿命周期分为设计、原材料生产加工、施工、运营维护和废弃等5个阶段，按照质量准则和造价准则核算材料损耗、材料运输、施工机械和办公场所的碳排量建立碳足迹核算模型。针对桥梁项目特点基于碳足迹和经济成本建立碳强度指标，并应用改进的层次分析法进行多级模糊综合评价。采用本文模型对武汉市南太子湖大桥进行了工程应用分析，研究结果表明：该桥的碳强度介于碳强度适中与碳强度较大之间，其碳足迹主要集中在桥梁建设的原材料生产加工阶段和施工阶段。本文的桥梁碳足迹核算模型和桥梁环境综合评价方法兼顾了桥梁工程实施规律和经济成本影响，可为有效节能减排提供桥梁建设管理参考。 关键词：桥梁；碳强度；全寿命周期评价；碳足迹；模糊综合评价；时间系列；层次分析法 中图分类号：U44 文献标志码：A Comprehensive fussy assessment of bridge carbon intensity index based on life-cycle carbon footprint quantitative model SUN Xiao-yan1, DONG Wei-wei1, WANG Hailong*1, Jie Wang2 (1 College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China 2 Department of Civil and Environmental Engineering, Stanford University, California, CA 94305-4020) Abstract: In order to estimate the carbon footprint of bridge whole life cycle, a quantitative model was established. The life cycle was divided into five phases as programming, raw material production, construction, operation, maintenance and disuse. The carbon footprint of different source, such as material, transportation, equipment etc, was accounted according to the criterion of mass and cost. The carbon intensity index was proposed considering the feature of bridge engineering and economic cost. A multi-level assessment method was developed based on modified analytic hierarchy process and comprehensive fussy analysis. As a case study, the southern Taizi Lake bridge in Wuhan was analyzed and the assessment result indicated that the carbon intensity of this bridge was between medium and comparatively large, and the carbon footprint was mainly concentrated in the phases of raw material production and construction. The carbon footprint model and carbon intensity index assessment method which combine environmental impact together with economic cost, were of high applicability in real bridge project, and could be use