基于BIM的装配式住宅建筑碳排放分析
Analysis on Carbon Emission of Prefabricated Residential Building Based on BIM
刘平平 1王瑶 2朱峰磊 1姜立 1雷阳 3朱珍英 1孙明 1王孝祺4
作者信息
- 1. 中国建筑科学研究院有限公司,北京 100013
- 2. 中国建筑科学研究院有限公司,北京 100013;清华大学,北京 100084
- 3. 中国建筑第七工程局有限公司,深圳 518034
- 4. 清华大学,北京 100084
- 折叠
摘要
以建筑全生命周期为出发点,研究了建筑节能水平和不同施工工艺对建筑碳排放量的影响.为探究分析建筑碳排放量以及相对于现浇混凝土结构建筑的单位面积减碳量,基于BIMBase平台,依据GB55015-2021《建筑节能与可再生能源利用通用规范》,选择上海市装配式住宅项目进行分析.结果如下:1)全生命周期年均碳排放指标达到35.73 kgCO2e/m2,建材生产阶段碳排放占32.95％,建筑运行阶段碳排放占63.64％;空调系统年碳排放量指标达到9.21 kgCO2/(m2·a),其中制冷碳排放占比达到61.35％;建材回收可实现8.93％的减碳强度;2)建筑运行阶段碳排放强度较2016年执行的居建节能标准,降低10.17 kgCO2e/m2,降低比例为46.03％;3)本项目采用预制率30％的PC结构,建造阶段碳排放较现浇混凝土结构降低比例为6.5％.
Abstract
Starting from the whole life cycle of buildings,the influence of building energy efficiency and different construction techniques on building carbon emissions are investigated.To explore and analyze the carbon emissions of buildings and the carbon reduction per unit area relative to cast-in-place concrete structures,based on the BIMBase platform and in accordance with GB55015-2021"General Code for Energy Efficiency and Renewable Energy Application in Buildings",a prefabricated residential project in Shanghai was selected for analysis.The results show that:1)The annual carbon emission index of the whole life cycle reaches 35.73 kgCO2 e/m2,accounting for 32.95％in building materials production stage,63.64％in building operation stage;The annual carbon emission index of the air conditioning system reaches 9.21 kgCO2/(m2·a),with cooling carbon emissions accounting for 61.35％;Recycling of building materials can achieve 8.93％carbon reduction strength;2)The carbon emission intensity during the operation phase is reduced by 10.17 kgCO2 e/m2 compared to the energy-saving standards for residential construction implemented in 2016,with a reduction rate of 46.03％;3)This project adopts a PC structure with a prefabrication rate of30％,and the carbon emissions during the construction phase are reduced by 6.5％compared to cast-in-place concrete structures.
关键词
碳排放/BIMBase/建筑全生命周期/装配式建筑Key words
carbon emission/BIMBase/whole life cycle of buildings/prefabricated building引用本文复制引用
基金项目
中国建筑科学研究院有限公司项目(20220122331030008)
国家重点研发计划(2023YFC3807700)
出版年
2024
NETL
NSTL
万方数据