A BIM-Based Workflow for Early-Stage Embodied Carbon Assessment Using Reusable Assembly Templates and Rule-Based Mapping
再利用可能なアセンブリテンプレートとルールベースマッピングを用いた初期段階の体化炭素評価のためのBIMベースワークフロー (AI 翻訳)
Yiquan Zou, Zhixiang Ren, Li Wang, Qihong Lei, Xin Li, Tianxiang Liang, Wenxuan Chen
🤖 gxceed AI 要約
日本語
本研究は、初期設計段階での体化炭素算定を効率的に行うため、BIM（Revit）と再利用可能なアセンブリテンプレートを組み合わせたワークフローを開発した。武汉の3階建て建物をケーススタディとし、A1～A3段階の体化炭素原単位約333kgCO2e/m2を算出。手作業と比較して初回算定時間を83～98分、テンプレート再利用時は30分以内に短縮した。
English
This study develops an open, traceable embodied-carbon assessment workflow using BIM object geometry and semantic attributes, implemented as a Revit add-in. A single case study of a three-story residential building in Wuhan demonstrates automated A1-A3 accounting, achieving a carbon intensity of 333 kgCO2e/m2, with first-time accounting reduced from manual 290-380 min to 83-98 min, and under 30 min with reusable templates.
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CO2算定が求められており、本手法はBIMを用いた効率的な体化炭素評価の実装例として参考になる。ただし日本独自のデータベースや基準への適用には調整が必要。
In the global GX context
As embodied carbon accounting gains traction globally (e.g., in the EU's Level(s) framework and UK's RICS standards), this BIM-based workflow offers a practical, reusable approach for early-stage design decisions, though larger validation across diverse building types is needed.
👥 読者別の含意
🔬研究者:BIM-LCA統合の実装例として、ルールベースマッピングとアセンブリ再利用の有用性を示す。
🏢実務担当者:建築設計事務所やゼネコンで、初期段階の体化炭素算定を効率化するための実装方法を提供。
📄 Abstract（原文）
Embodied-carbon accounting is increasingly required at the early design stage to guide material and construction choices during design iterations. However, many life-cycle assessment (LCA) workflows and centralized building information modeling (BIM)–LCA plugins still rely on fragmented data, non-transparent mapping rules, and limited cross-project reuse, which slows rapid iteration. This study develops an open and traceable embodied-carbon assessment workflow driven by BIM object geometry and semantic attributes and demonstrates it through a single case study, enabling automated accounting for the A1–A3 stages from model input to result reporting. The framework is implemented as a Revit add-in prototype connected to an open-data platform. It uses assemblies as standardized assessment units, applies configurable rule-based mapping, and performs unit normalization to link model quantities with carbon factors. A single three-story brick–concrete residential building in Wuhan with an LoD 300 model is used as the sole validation case to demonstrate workflow feasibility, report coverage, and time metrics. The case yields an A1–A3 embodied-carbon intensity of approximately 333 kgCO2 e/m2, dominated by the structural system. Rule mapping achieves 82% coverage within the defined accounting scope. Compared with manual workflows (290–380 min), first-time accounting is reduced to 83–98 min and further to within 30 min when assemblies and rules are reused. Contribution decomposition shows a concentrated pattern and supports traceability from assemblies to material types. Overall, within the tested scope, the Revit-based prototype provides efficient and verifiable embodied-carbon feedback for early-stage design.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/buildings16040710first seen 2026-06-29 06:29:23
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