桥梁工程全寿命周期碳排放流计算与分析  

Calculation and Analysis of Life-cycle Carbon Emission Flow of Bridge Engineering

作　　者：王银辉[1,2] 蒋建男 谢含军 周朝阳 马佳星 WANG Yin-hui;JIANG Jian-nan;XIE Han-jun;ZHOU Chao-yang;MA Jia-xing(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China;School of Civil Engineering and Architecture,Ningbo Tech University,Ningbo 315100,China;Ningbo Municipal Engineering Construction Group Co.,Ltd.,Ningbo 315012,China;School of Civil Engineering,Tianjin University,Tianjin 300350,China)

机构地区：[1]重庆交通大学土木工程学院,重庆400074 [2]浙大宁波理工学院土木建筑工程学院,宁波315100 [3]宁波市政工程建设集团股份有限公司,宁波315012 [4]天津大学建筑工程学院,天津300350

出　　处：《科学技术与工程》2023年第22期9605-9614,共10页Science Technology and Engineering

基　　金：国家自然科学基金(52108177);宁波市公益基金(2021S094);浙江省博士后科研择优资助项目(ZJ2022127)。

摘　　要：为了探寻不同类型桥梁全寿命周期碳排放的差异,基于全寿命周期理论将桥梁工程寿命周期划分为物化、运营维护以及拆除报废3个阶段。选取6种不同类型的桥梁,对其碳排放数据进行归一化处理,得到各阶段的碳排放流。进而借鉴现金流量理论构建了静态及动态的桥梁碳排放流模型,并通过此模型对上述桥型的碳排放流进行了分析。研究结果表明:静态碳排放总流从大到小依次为刚构桥(684.016)、斜拉桥(598.778)、悬索桥(461.288)、连续梁桥(264.728)、拱桥(218.508)、简支梁桥(45.009)。动态碳排放总流从大到小依次为刚构桥(12446.639)、悬索桥(10180.505)、斜拉桥(8963.715)、连续梁桥(4853.203)、拱桥(4529.216)、简支梁桥(883.095)。本项研究提出的桥梁碳排放流模型,充分考虑了碳排放的时间价值,可更好地指导桥梁选型,助力桥梁工程的低碳、环保、可持续发展。In order to explore the differences of carbon emissions in the full life cycle of different types of Bridges,the life cycle of bridge engineering is divided into three stages:materialization,operation and maintenance,demolition and scrapping based on the life cycle theory.The carbon emission data of six different types of Bridges in the literature were normalized to obtain the carbon emission flows of each stage.Then,the static and dynamic carbon emission flow models of Bridges are constructed based on the cash flow theory,and the carbon emission flow of the above Bridges is analyzed through this model.The results show that the total static carbon emission flows from large to small are rigid frame bridge(684.016),cable-stayed bridge(598.778),suspension bridge(461.288),continuous beam bridge(264.728),arch bridge(218.508)and simply supported beam bridge(45.009).The total dynamic carbon emission flow of rigid frame bridge(12446.639),suspension bridge(10180.505),cable-stayed bridge(8963.715),continuous beam bridge(4853.203),arch bridge(4529.216)and simply supported beam bridge(883.095)in order from largest to smallest.The bridge carbon emission flow model proposed in this study fully considers the time value of carbon emission,which can better guide the bridge selection and help the low-carbon,environmental protection and sustainable development of bridge engineering.

关 键 词：桥梁工程 全寿命周期 碳排放流 

分 类 号：TU18[建筑科学—建筑理论]