Poster: An investigation into the embodied carbon and associated costs in office buildings utilizing different slab systems
異なるスラブシステムを利用したオフィスビルにおける体化炭素と関連コストの調査 (AI 翻訳)
C. Paknahad
🤖 gxceed AI 要約
日本語
この研究は、オフィスビルにおける鉄筋コンクリートスラブシステム（フラットスラブ、梁・スラブ、ツーウェイジョイストスラブ）を比較し、体化炭素排出量と建設コストを分析。結果、長スパンではツーウェイジョイストスラブが低炭素かつ経済的で、短スパンではフラットスラブが経済的だが炭素フットプリントが高いことを示した。設計初期でのスラブ選択の指針となる。
English
This research compares reinforced concrete slab systems (flat, beam-and-slab, two-way joist) in office buildings, analyzing embodied carbon and construction costs. Results show two-way joist slabs offer a favorable balance at longer spans, while flat slabs are economical at short spans but have higher carbon footprint. Findings support span-specific slab selection for sustainable 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
日本でも建築物のライフサイクル全体での脱炭素が求められており、体化炭素の削減は重要課題。本研究成果は、設計初期段階でのスラブシステム選択の判断材料として、日本の建設業界やSSBJの建築関連基準の議論に貢献できる。
In the global GX context
With growing focus on embodied carbon in buildings (e.g., under whole-life carbon approaches), this study provides comparative evidence for slab system selection. It informs global efforts to reduce construction emissions, aligning with ISSB and other disclosure frameworks that may require embodied carbon reporting.
👥 読者別の含意
🔬研究者:Provides comparative data for embodied carbon and cost optimization in RC slab systems, useful for structural and sustainability researchers.
🏢実務担当者:Offers actionable insights for structural engineers and contractors to choose low-carbon, cost-effective slab systems based on span length.
🏛政策担当者:Supports development of building codes or guidelines that incentivize lower embodied carbon in construction through design choices.
📄 Abstract（原文）
Carbon dioxide (CO2) is the primary greenhouse gas contributing to global warming, and cement production, a key component of concrete, accounts for approximately 8% of global CO2 emissions. As improvements in energy efficiency continue to reduce operational carbon in buildings, embodied carbon from construction materials and processes is becoming an increasingly critical factor in sustainable design. This research presents a comparative analysis of reinforced concrete (RC) slab systems within the context of a typical office building, focusing on embodied carbon emissions and associated construction costs. The aim is to propose the most environmentally friendly and cost-effective floor system in RC structures. To do so, a 3×3 bay structure is modelled with two span lengths of 5 m and 10 m, and a single concrete grade of C25/30 is employed to assess performance across varying design scenarios. Three common slab systems, including flat slab, beam and slab, and two?way joist slab, are evaluated using Eurocode-based design principles. Non-linear finite element analysis is applied to minimise both embodied carbon and cost while maintaining structural adequacy. Results indicate that two-way joist slabs generally provide a favourable balance between lower embodied carbon and cost, particularly at longer spans. In contrast, flat slabs offer greater economic efficiency at shorter spans but result in a significantly higher embodied carbon footprint at longer spans. These findings support more informed, span-specific slab system selection in early-stage design, contributing to the development of more sustainable and cost-effective concrete building
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.36828/newvistas.390first seen 2026-06-29 06:32:36
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