Structural Efficiency and Embodied Carbon Assessment of Pre-Engineered Versus Conventional Steel Beams
プレエンジニアリング鋼梁と従来鋼梁の構造効率と体化炭素評価 (AI 翻訳)
Riza Suwondo, M. Suangga, Militia Keintjem, Traad Alzhrani
🤖 gxceed AI 要約
日本語
本研究は、プレエンジニアリング建築（PEB）システムのテーパー組立鋼梁と従来の熱間圧延鋼梁を比較し、スパン6〜20mにおける構造効率と体化炭素を評価。AISC 360-16に基づく構造設計とBS EN 15978に準拠したLCAの結果、PEB梁は短・中スパンで高い利用率と小さな有効断面を達成し、鋼材質量低減により体化炭素を約10〜25%削減できることを示した。
English
This study compares structural efficiency and embodied carbon of pre-engineered tapered built-up steel beams versus conventional hot-rolled steel beams over spans of 6-20 m. Using AISC 360-16 for design and BS EN 15978 for LCA, it finds that pre-engineered beams achieve higher utilization ratios and reduce embodied carbon by 10-25% due to lower steel mass, particularly for short and intermediate spans.
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
日本の建設業界では、SSBJやカーボンニュートラル目標の下で建物の体化炭素削減が急務。本研究成果は、PEBシステムの採用による鋼材使用量削減と炭素排出削減の定量的根拠を提供し、日本の鉄骨構造設計やグリーン建築認証に活用可能。
In the global GX context
Globally, embodied carbon reduction in buildings is a priority for net-zero targets and circular economy. This study provides empirical evidence that pre-engineered steel beams can reduce carbon footprint by 10-25%, supporting green building certifications and aligning with EU Taxonomy and similar frameworks.
👥 読者別の含意
🔬研究者:Provides a structured methodology integrating structural design and LCA for steel beams, useful for further optimization studies.
🏢実務担当者:Offers quantitative justification for adopting PEB systems to reduce material costs and embodied carbon in steel building projects.
🏛政策担当者:Can inform building codes and green procurement policies that incentivize low-carbon structural systems.
📄 Abstract（原文）
The increased focus on the reduction of greenhouse gas emissions in the building and construction sector has heightened the demand for structural systems that reduce both material and embodied carbon. Pre-engineered building (PEB) systems using tapered built-up steel beams could potentially offer a viable alternative to traditional hot-rolled prismatic sections by better matching and aligning the sectional capacity and the bending demand. However, there are still a limited number of studies that perform comparative analyses integrating structural and environmental impact. This study assessed the structural efficiency and embodied carbon of pre-engineered and conventional steel beams over spans of 6 to 20 m for fixed-end and pinned-end boundary conditions. Structural design was performed in accordance with AISC 360-16, and embodied carbon was assessed for life cycle modules A1–A5 following BS EN 15978. The results indicate that tapered built-up beams achieve higher utilisation ratios and smaller effective section sizes, particularly for short and intermediate spans. Life-cycle assessment shows that pre-engineered beams reduce embodied carbon by approximately 10–25% compared with conventional beams, primarily owing to their lower steel mass. These findings demonstrate that tapered built-up beams offer both structural and environmental advantages in the investigated design context.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.31272/jeasd.3791first seen 2026-06-29 06:34:25
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