Life Cycle Assessment of Reinforced Concrete Beam Design for Sustainable Construction
持続可能な建設のための鉄筋コンクリート梁設計のライフサイクルアセスメント (AI 翻訳)
Mohammad S. M. Almulhim, Ahmed Essa Al Muhanna, Noman Ashraf
🤖 gxceed AI 要約
日本語
この論文は、鉄筋コンクリート梁の寸法最適化が建設の環境負荷に与える影響を評価したものです。複数階建て建物を対象に、構造解析とライフサイクルアセスメントを用いて、異なる梁構成の埋め込み炭素とエネルギーを比較しました。最適化された梁は、埋め込み炭素を最大24%、エネルギーを21%削減できることが示されましたが、鋼材の割合が増えるためバランスが重要です。設計の初期段階で持続可能なアプローチを適用することで、規制を遵守しつつ環境負荷を低減できます。
English
This study evaluates how optimizing reinforced concrete beam dimensions affects the environmental impact of building construction. Using structural analysis and life cycle assessment on a multistory building, the authors compare embodied carbon and energy across beam configurations. Optimized beams reduce embodied carbon by up to 24% and embodied energy by 21% compared to a control design, mainly due to reduced concrete volume. However, thinner beams increase the proportional steel input, highlighting the need for material balance. The results demonstrate that early-stage sustainable design can lower environmental footprints while maintaining code compliance.
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
日本は鉄筋コンクリート建築が多く、GX政策では建築物の埋め込み炭素削減が重要視されています。本論文は、設計初期段階での最適化により環境負荷を低減する実践的な手法を示しており、将来的にSSBJなどの開示基準がライフサイクル炭素計測を求める可能性がある中で、日本の技術者に有用な知見を提供します。ただし、日本の規制や開示基準に直接結びつくものではありません。
In the global GX context
Globally, the construction sector is a major carbon emitter, and LCA is increasingly integrated into building codes (e.g., European Green Deal, US Inflation Reduction Act). This paper provides a methodology for optimizing beam design to reduce embodied carbon, which can inform sustainable construction practices. However, it is a technical structural engineering study without direct corporate disclosure implications.
👥 読者別の含意
🔬研究者:Researchers in structural engineering and LCA can adopt the optimization approach and methodology for other building components.
🏢実務担当者:Structural engineers and construction firms can apply the optimization strategy to reduce the carbon footprint of their projects while maintaining code compliance.
🏛政策担当者:Policymakers developing building codes or green procurement policies can reference this method to mandate embodied carbon reductions.
📄 Abstract（原文）
Reinforced concrete buildings should be optimized in order to increase their structural efficiency and decrease the environmental impact of building construction. The current paper discusses the role of beam dimension optimization in improving the sustainability performance of reinforced concrete systems. A multistory building was developed to determine the suitability of different beam configurations using structural analyses and life cycle assessment. Embodied carbon and energy were assessed in terms of production, construction, and end‐of‐life. The findings showed that geometrically optimized beam elements lower the embodied carbon and embodied energy by up to 24% and 21%, respectively, compared to the control design, mainly the subset of a thin concrete volume. However, reduced beam cross‐sections increased the proportionate input of steel, which explains the importance of balanced use of materials. In general, the results show that at the early stages of beam design, a sustainable approach can be applied to reduce environmental footprints whilst maintaining code compliance when designing a building.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1002/eng2.70871first seen 2026-06-29 07:00:13
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