基于BIM技术的装配式混凝土建筑物化阶段碳足迹研究  

Case Study on Carbon Footprint Assessment during Materialization Stage of Prefabricated Concrete Buildings Based on BIM

作　　者：杨文涛 宋培欣 陈忠清 肖景平 赵鑫 吕越 YANG Wentao;SONG Peixin;CHEN Zhongqing;XIAO Jingping;ZHAO Xin;LYU Yue

机构地区：[1]绍兴文理学院土木工程学院,浙江绍兴312000 [2]华汇工程设计集团股份有限公司,浙江绍兴312000 [3]华汇建设集团有限公司,浙江绍兴312000

出　　处：《浙江建筑》2024年第2期65-69,共5页Zhejiang Construction

基　　金：浙江省住房和城乡建设厅科研项目“基于BIM的装配式建筑物化阶段碳足迹评价与实证研究”(2021K200)。

摘　　要：基于自行设计的碳足迹测算系统及BIM导出的工程量清单,从建材生产、建材运输、构件生产、构件运输、现场施工安装和现场施工管理6个阶段出发,对4个不同类型的混凝土建筑实例工程的物化阶段碳足迹评价开展实证研究。结果表明:装配式混凝土建筑在物化阶段的碳排放总体上较传统现浇建筑更低,碳浓度降幅可达29.7601~41.9472 kgCO_(2)e/m^(2);建材生产的碳排放在不同类型的混凝土建筑物化阶段碳排放总量中占比均超过88%,是实现建筑碳减排的主要阶段;其次为现场施工阶段,碳排放占比不到10%,而建材运输、构件生产、构件运输和现场施工管理等阶段的碳排放占比均不到2%。钢筋和混凝土是建材生产的碳足迹主要来源,碳排放占比30%~50%,其次为水泥和砌体材料。研究可为“双碳”背景下装配式混凝土建筑进一步实现碳减排提供一定的理论参考。Based on the self-designed carbon footprint measurement system and the bill of quantities derived by BIM,an empirical study was carried out on the carbon footprint evaluation of four concrete construction examples in the physical and chemical stages from the six stages of building materials production,building materials transportation,component production,component transportation,site construction installation and site construction management.The results show that the carbon emission of prefabricated concrete buildings in the physicochemical stage is lower than that of traditional cast-in-place buildings,and the carbon concentration reduction can reach 29.7601~41.9472 kgCO_(2)e/m^(2).The carbon emissions of building materials production accounted for more than 88% of the total carbon emissions of different types of concrete buildings in the physical and chemical stage,which is the main stage to achieve building carbon emission reduction,followed by the site construction stage,carbon emissions ac‐counted for less than 10%,while the carbon emissions of building materials transportation,component production,component transportation and site construction management and other stages accounted for less than 2%.Steel and concrete are the main sources of carbon footprint of building materials production,accounting for nearly 30% to 50% of carbon emissions,followed by cement and masonry materials.The research can provide a theoretical reference for further carbon reduction of prefabricated concrete buildings under the background of"double carbon".

关 键 词：装配式混凝土建筑 BIM 物化阶段 碳足迹 碳浓度 

分 类 号：TU37[建筑科学—结构工程] TU17