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持続可能建築における低炭素技術の統合経路に関する研究：ライフサイクルアセスメント手法に基づいて

Research on Integrated Pathways of Low-Carbon Technologies in Sustainable Buildings: Based on the Life Cycle Assessment Method (原題)

Jiakun Liu

Advances in Economics Management and Political Sciences📚 査読済 / ジャーナル2026-10-20#省エネOrigin: CN経営インパクト: コスト削減対象セクター: construction
DOI: 10.54254/2754-1169/2026.37954
原典: https://doi.org/10.54254/2754-1169/2026.37954

🤖 gxceed AI 要約

日本語

建築分野の脱炭素化に向け、LCA手法を用いて低炭素技術の統合経路を検討した研究。低炭素建材・パッシブ設計・アクティブシステム・再生可能エネルギーの4類型について、ライフサイクル各段階での削減ポテンシャルと相乗効果を比較事例で分析した。単一技術は適用拡大に伴い限界効果が逓減する一方、複数技術の統合は削減効果を重畳的に高めることを示す。LCAとBIMの統合が設計段階の低炭素意思決定を支援するとし、「源頭－工程－終末」の三段階統合モデルを提案する。

English

Using life-cycle assessment (LCA), this study maps integration pathways for low-carbon technologies in sustainable buildings. Through literature review and comparative case analysis, it examines four technology types—low-carbon materials, passive design, active systems, and renewables—across life-cycle stages. Single technologies show diminishing marginal returns, while multi-technology integration yields superimposed emission reductions; an LCA-BIM framework supports design-stage low-carbon decisions. The authors propose a three-stage 'source–process–end-of-life offset' integration model.

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

中国の「双炭」目標を背景とした建築LCA研究であり、日本では建築物省エネ法やCASBEE、ZEB普及、Scope 3のカテゴリ3（上流）・カテゴリ11（下流）算定に関わる実務者にとって、技術組合せと設計初期介入の重要性を示す参照枠となる。

In the global GX context

Buildings account for ~37% of global GHG emissions, and this paper speaks to the embodied/operational carbon split increasingly scrutinized under ISSB and CSRD building-sector disclosures. Its emphasis on design-stage intervention and LCA-BIM integration offers a practical framing for whole-life carbon accounting, though the evidence base is qualitative rather than quantitative.

👥 読者別の含意

🔬研究者:LCAとBIM統合による建築炭素評価の枠組みと、技術組合せの相乗効果に関する質的知見を整理する参考になる。

🏢実務担当者:設計初期段階での低炭素技術の組合せ選択と、LCA-BIM連携による意思決定支援の考え方を実務に取り込める。

🏛政策担当者:建築物の全ライフサイクル炭素規制を設計する際、技術統合と設計段階介入の重要性を示す政策的示唆として参照できる。

📄 Abstract（原文）

The construction industry accounts for approximately 37% of global greenhouse gas emissions and 40% of global energy consumption. Against the backdrop of the "Dual Carbon" goal, how to achieve deep decarbonization across the whole life cycle of buildings through the effective integration of low-carbon technologies has become a core issue in the field of sustainable construction. Based on the Life Cycle Assessment (LCA) method, this study systematically explores the integration pathways of low-carbon technologies in sustainable buildings. Adopting a combination of literature review and comparative case analysis, the study sorts out the application framework of LCA in building carbon emission assessment, and analyzes the emission reduction potential and synergistic effects of four types of technologies—low-carbon building materials, passive design, active systems, and renewable energy—across different life cycle stages. The findings show that the emission reduction effect of low-carbon technologies is highly dependent on technology combinations and early intervention in the design stage; the marginal benefit of a single technology decreases as its application level increases, while the synergistic integration of multiple technologies can achieve a significant superimposed emission reduction effect; and the integrated framework of LCA and BIM provides effective technical support for low-carbon decision-making in the design stage. This study proposes a three-stage low-carbon technology integration path model of "source carbon reduction – process carbon reduction – end-of-life carbon offset", which provides a theoretical reference and practical framework for low-carbon design and decision-making of sustainable buildings.

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