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独立フーチング基礎における体化炭素とコスト削減

Embodied Carbon and Cost Reduction in Isolated Pad Footings (原題)

Arjun Singh, A. Jain, G. Sancheti

Engineering Research Express📚 査読済 / ジャーナル2026-08-24#省エネ経営インパクト: コスト削減対象セクター: construction
DOI: 10.1088/2631-8695/ae9e08
原典: https://iopscience.iop.org/article/10.1088/2631-8695/ae9e08/pdf
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🤖 gxceed AI 要約

日本語

本研究は、インドの基準に基づいて設計された独立フーチング基礎の体化炭素とコストを評価した。コンクリート量削減と鉄筋量増加の戦略を比較し、多くのグレードで体化炭素とコストが削減できることを示した。基礎設計における材料最適化の重要性を強調している。

English

This study evaluates embodied carbon and cost of isolated pad footings designed per Indian standards. Comparing nominal-depth with reduced-depth designs, it finds that reducing concrete volume while increasing reinforcement lowers embodied carbon and cost for most grades, highlighting material optimization in foundation design.

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

日本の建築分野では、脱炭素化に向けて体化炭素の算定と削減が重要視されており、本研究成果は基礎設計における材料最適化の指針となる。

In the global GX context

Globally, embodied carbon reduction in buildings is gaining attention as operational emissions decline. This study provides design-stage insights for low-carbon foundations, relevant to international sustainability frameworks and building standards.

👥 読者別の含意

🔬研究者:Foundation design researchers can use the comparative analysis of design strategies for embodied carbon reduction.

🏢実務担当者:Structural engineers and construction firms can apply the material optimization approach to reduce carbon footprint and costs.

🏛政策担当者:Policymakers can consider incorporating embodied carbon limits in building codes to drive low-carbon construction.

📄 Abstract（原文）

Embodied carbon associated with construction materials has become an increasingly important component of the environmental impact of buildings, particularly as operational emissions decline through improved energy efficiency. Foundation systems, which rely heavily on concrete and reinforcing steel, contribute significantly to building embodied carbon yet remain comparatively underexplored in low-carbon design research. This study evaluates the embodied carbon implications of conventional isolated pad footing design using a structured design-stage framework that integrates structural design requirements, material quantity estimation, and cost assessment. Footings were designed in accordance with Indian standards considering concrete grades ranging from M20 to M40. Two design strategies were investigated: a nominal-depth configuration with minimum reinforcement and a reduced-depth configuration with increased reinforcement ratios. Results indicate that footing thickness is primarily governed by one-way shear behaviour. Reduced-depth designs achieved lower embodied carbon and material cost for most grades by reducing concrete volume despite higher reinforcement demand, highlighting the importance of material optimisation in foundation design.

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