Comparative analysis and influential factors of embodied carbon emissions across low-rise, multi-story, and high-rise residential buildings in China
中国における低層、中層、高層住宅建物の体化炭素排出量の比較分析と影響要因 (AI 翻訳)
Jiayue Sun, Xiaocun Zhang, Fenglai Wang
🤖 gxceed AI 要約
日本語
中国538棟の住宅データを用い、低層・中層・高層建物の体化炭素強度を比較。平均値はそれぞれ399.2、442.9、450.1 kgCO2e/m2。構造形式と耐震強度が構造材料の炭素強度に影響し、納入形態が装飾材料に関連。低層・中層ではフレーム構造、高層ではせん断壁構造で削減余地が大きい。
English
Based on 538 residential buildings in China, this study compares embodied carbon intensities across low-rise, multi-story, and high-rise buildings, averaging 399, 443, and 450 kgCO2e/m2 respectively. Structural form and seismic fortification intensity primarily affect structural material emissions, while delivery type influences decorative materials. Frame structures offer highest reduction potential in low-rise and multi-story buildings (13.9% and 15.2%), while shear wall structures do in high-rise (12.5%).
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の建築分野でも運用炭素削減が進む中、体化炭素の重要性が増している。本論文は中国のデータではあるが、建物種別ごとの炭素強度比較や削減ポテンシャルの分析手法は、日本における低炭素設計の参考になる。
In the global GX context
As operational carbon declines, embodied carbon becomes critical for building decarbonization globally. This study provides empirical evidence from China on how building characteristics affect embodied emissions, offering insights for sustainable construction practices worldwide.
👥 読者別の含意
🔬研究者:Detailed empirical data on embodied carbon across building types and identification of key influencing factors for low-carbon design.
🏢実務担当者:Practical guidance on selecting structural systems and materials to reduce embodied carbon in residential buildings.
🏛政策担当者:Evidence for incorporating embodied carbon limits into building codes, especially for different building heights and structural types.
📄 Abstract（原文）
Abstract Embodied carbon emission reduction is crucial for promoting energy conservation and carbon reduction in residential buildings as operational carbon emissions decline. While previous studies have examined the influence of various building characteristics on embodied carbon emissions, the underlying factors responsible for the observed variations in emissions under different characteristics remain insufficiently explored. Using a dataset of 538 residential buildings in China, this study statistically analyzed the embodied carbon intensities of low-rise, multi-story, and high-rise buildings, with average values of 399.2, 442.9, and 450.1 kgCO 2e /m 2 , respectively. Correlation analysis and significance tests were then used to examine differences in embodied carbon emissions across different characteristic categories. The results revealed that structural form and seismic fortification intensity primarily affected the embodied carbon intensity of structural materials, whereas delivery type was mainly associated with that of decorative materials. The proposed influence coefficients further indicated that concrete was the dominant factor to differences in embodied carbon intensity associated with structural forms and seismic fortification intensity in low-rise and high-rise buildings, whereas steel made a greater contribution in multi-story buildings. Moreover, the analysis of potential carbon reduction measures indicated that low-rise and multi-story buildings with frame structures exhibited the highest reduction potential, with reductions of 13.9% and 15.2%, respectively, achievable through material consumption optimization and transport distance reduction. However, in high-rise buildings, shear wall structures exhibited the highest reduction potential (12.5%). This study provides practical insights into optimizing residential building design from a low-carbon perspective.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s41598-026-54989-wfirst seen 2026-05-27 04:49:11
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