Dual-Layer Sustainable Optimization Framework: An Application to Building Structure Floor Design
二層型持続可能最適化フレームワーク：建築構造床設計への応用 (AI 翻訳)
Mohammad S. M. Almulhim
🤖 gxceed AI 要約
日本語
建設業は世界の炭素排出の主要源であり、構造システムは体化炭素（EC）に大きく貢献する。本研究は、システムレベルの代替とスパン最適化を統合した二層持続可能最適化フレームワーク（DLSOF）を提案し、単一のLCAアプローチを用いてEC削減を評価する。鉄筋コンクリート建物のモデル分析の結果、スパン最適化で33％、システム代替で30％、二層アプローチで52％のEC削減を達成した。不確実性分析でも一貫した削減傾向が確認され、初期設計段階の重要性が示された。
English
The construction industry is a major carbon emitter, with structural systems being embodied carbon-intensive. This paper proposes a Dual-Layer Sustainable Optimization Framework (DLSOF) integrating system-level substitution and span optimization with embodied carbon LCA. Applied to reinforced concrete buildings, span optimization achieved 33% reduction, system substitution 30% reduction, and the dual-layer approach 52% reduction in embodied carbon. Uncertainty analysis confirms consistent trends, highlighting early design stage importance.
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
日本では建設業のカーボンニュートラル目標達成が急務であり、本フレームワークは鉄筋コンクリート建築の体化炭素削減に有効。SSBJやTCFDに基づく建設物の炭素開示にも貢献する。
In the global GX context
Globally, this framework provides a replicable and transferable model for low-carbon structural design, supporting engineers in achieving significant embodied carbon reductions and aligning with net-zero targets.
👥 読者別の含意
🔬研究者:Provides a systematic optimization framework combining span and system-level strategies for embodied carbon reduction, with empirical validation.
🏢実務担当者:Engineers can use DLSOF to achieve significant embodied carbon reductions in early design stages, with demonstrated 52% reduction potential.
🏛政策担当者:Supports development of building codes and LCA standards for embodied carbon.
📄 Abstract（原文）
The construction industry is one of the primary global contributors to carbon emissions, with both construction materials and operational energy recognized as critical factors in achieving net-zero goals. Given that structural systems are embodied carbon-intensive, significant early-stage carbon reductions are possible. This paper introduces the dual-layer sustainable optimization framework (DLSOF), a methodology that integrates system-level substitution with span-level optimization and a single life-cycle assessment (LCA) approach focused on embodied carbon (EC) that is applicable to various construction types and climate regions. To validate DLSOF, two representative models of reinforced concrete buildings were selected for analysis: one focused on alternate structural systems and the other on span optimization for a standard slab configuration. The results indicate that, in most cases, span optimization achieves a reduction in embodied carbon of 33%, whilst system-level substitution, in most cases, achieves a reduction of approximately 30%. The dual-layer approach, in comparison to conventional baseline designs, achieves approximately a 52% reduction in embodied carbon. Uncertainty analysis indicates variability in design and data inputs, but the overall trend of embodied carbon reduction remains consistent. The results highlight the critical nature of the early structural design stage. For engineers, the DLSOF provides a practical design pathway, and it offers flexibility to accommodate diverse sustainability goals across varying geographical contexts. This study establishes a replicable and transferable model for low-carbon structural design by systematically integrating design optimization with embodied carbon assessment.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/app16083917first seen 2026-06-29 06:55:33
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