Sustainability Assessment of Concrete vs. Steel Structural Systems: A Case Study on a Two-Story School Building
コンクリートと鉄骨構造システムの持続可能性評価: 2階建て校舎のケーススタディ (AI 翻訳)
B. Abdulhadi, A. H. Abd Ulameer, A.W.A. Hussein, M. M. Hasan, Mohammed Abdulkarim Razouki
🤖 gxceed AI 要約
日本語
本研究では、イラクの2階建て校舎を対象に、コンクリート構造と鉄骨構造のライフサイクルアセスメント（LCA）を実施。OpenLCAソフトウェアを用い、ISO 14040/14044に準拠。結果、コンクリート構造は鉄骨に比べCO2排出量27%減、エネルギー消費55%減を示す一方、鉄骨は98%のリサイクル性を有する。ハイブリッドシステムや環境配慮材料の活用を提案。
English
This study conducts a Life Cycle Assessment (LCA) of a two-story school building in Iraq comparing reinforced concrete and structural steel systems using OpenLCA software per ISO 14040/14044. Concrete emits 27% less CO2 and uses 55% less energy, while steel offers 98% recyclability. Hybrid systems and eco-friendly materials are recommended.
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
本論文はイラクの事例だが、日本の建設分野におけるLCAデータベース整備やグリーン購入基準策定にも示唆を与える。特に、コンクリートと鉄骨の環境負荷比較は、日本の建築物の脱炭素化検討において参考となる。
In the global GX context
This case study from Iraq provides a comparative LCA of concrete vs. steel structures, which is relevant to global green building standards and material selection. The findings support hybrid construction approaches and the development of national LCA databases.
👥 読者別の含意
🔬研究者:LCA methodology for comparing structural materials; useful for building sector decarbonization studies.
🏢実務担当者:Provides quantitative comparison for material selection in construction projects, highlighting trade-offs between carbon and recyclability.
🏛政策担当者:Supports development of green building codes and incentives for hybrid systems or recycled materials.
📄 Abstract（原文）
This study applies Life Cycle Assessment (LCA) using OpenLCA software in accordance with ISO 14040/14044 standards. A two-story school building was modeled with reinforced concrete and structural steel systems, both designed using ETABS. The study looks at a two-story school building over several phases, such as getting materials, making them, building them, using them, and then getting rid of them. Key performance indicators such as carbon emissions, energy consumption, recyclability, and construction waste are analyzed. Results reveal that concrete structures emit 27% less CO₂ and consume 55% less energy than steel systems, though steel offers superior recyclability (98%). The results show that steel structures may be recycled and used again and again, whereas reinforced concrete uses substantially less energy and carbon. The study proposes the use of hybrid systems that combine concrete slabs and foundations with steel superstructures to actualize these results. It also proposes employing materials that are good for the environment, such fly ash and recycled aggregates, and establishing national databases to assist people choose products. These suggestions are a practical way to get Iraq to embrace green building laws and practices.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.4028/p-kk1kqafirst seen 2026-06-29 07:06:46
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