災害後建物修復と機能喪失の体化炭素影響を評価するハイブリッド手法
A Hybrid Method for Assessing Embodied Carbon Impacts of Post-Disaster Building Repair and Functional Loss (原題)
Yating Zhang, Dustin T. Cook, S. Sattar, J. Fung, Joshua D. Kneifel, Katherine J Johnson
🤖 gxceed AI 要約
日本語
地震後の建物修復における体化炭素排出を評価するハイブリッド手法を提案。単位プロセス分析と産業連関分析を組み合わせ、修復資材、輸送、建設機器、労働者移動、廃棄物処理、居住者移転などを考慮する。カリフォルニアの事例研究で、従来の産業連関法より精度が高いことを示し、災害後の回復に伴う炭素排出の潜在性を明らかにした。
English
This paper proposes a hybrid method combining unit process analysis and economic input-output analysis to quantify embodied carbon emissions from post-earthquake building repair and functional loss. It accounts for repair materials, transport, equipment, labor travel, debris disposal, and occupant displacement, as well as shortened building life. A California case study demonstrates higher accuracy than the standard input-output method and reveals significant carbon emission potential from disaster recovery.
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
日本は地震多発国であり、災害後の復旧・復興における炭素排出評価は、SSBJやカーボンニュートラル政策と関連して重要。本手法は、日本の建築セクターにおける災害レジリエンスと脱炭素の統合に示唆を与える。
In the global GX context
Globally, this research contributes to the emerging field of embodied carbon assessment in building recovery, relevant to ISSB and CSRD disclosure requirements. It offers a methodological advancement for quantifying climate impacts of disaster resilience, which is increasingly important for transition finance and climate risk reporting.
👥 読者別の含意
🔬研究者:Provides a novel hybrid method for embodied carbon assessment in post-disaster building repair, useful for advancing carbon accounting methodologies.
🏢実務担当者:Offers a practical tool for construction and insurance sectors to estimate carbon emissions from disaster recovery, aiding in sustainability reporting.
🏛政策担当者:Highlights the need for standardized embodied carbon assessment in disaster recovery, relevant for climate adaptation and mitigation policies.
📄 Abstract（原文）
The building industry requires assessing embodied carbon from post-disaster recovery to improve international economic competitiveness. However, a standardized approach is not yet available for building assessment and design. The FEMA P58-4 methodology, which represents the current state of practice for assessing building damage and repair following earthquakes, has several limitations that may affect its ability to accurately estimate carbon emissions. This study proposes a hybrid method that combines unit process analysis (a detailed accounting of repair actions) with economic input-output analysis (industry-average estimates based on repair costs) to quantify carbon emissions from building component repairs and loss of building functions due to earthquake damage. The hybrid method considers various factors, including repair materials, material transport, construction equipment, labor travel, debris disposal, and occupant displacement. Additionally, the hybrid method accounts for the shortened useful life of buildings due to collapse or irreparable damage (requiring demolition and reconstruction), as well as future changes in construction and repair practices. A case study is presented to demonstrate the advantages of the hybrid method over the input-output method adopted by the mentioned methodology. The case study building reflects current code requirements in California with a low-to-moderate likelihood of severe damage due to seismic hazards during the design life. Nevertheless, the result reveals a high potential for carbon emissions from post-disaster building recovery, although this result varies depending on the assumed repair activities, transportation distances, and future scenarios.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1061/jsendh.steng-16421first seen 2026-08-21 05:05:09 · last seen 2026-09-21 05:11:43
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