BIM活用ライフサイクルアセスメントによる持続可能な建築開発の支援：ベトナムからのエビデンス

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:BIMとLCAを統合した設計初期段階の環境評価手法と、途上国における実証データを提供する。

🏢実務担当者:設計段階で低炭素資材・PV・節水を組み合わせたシナリオ比較により、LEED認証やScope 3上流排出削減の意思決定に活用できる。

🏛政策担当者:新興国での建築脱炭素政策・グリーンビルディング基準導入の際、BIM-LCA義務化やインセンティブ設計の根拠として参照可能。

This study aims to develop and validate a building information modeling (BIM)-enabled life cycle assessment (LCA) framework for quantifying and reducing the environmental impacts of buildings during the design stage. The research addresses the limited implementation of BIM-integrated sustainability assessment in developing countries and evaluates the effectiveness of low-carbon design strategies in the Vietnamese construction context. A BIM-LCA framework integrating Autodesk Revit and One Click LCA was developed in accordance with EN 15978 standards and applied to a seven-storey hotel project in Quang Ngai, Vietnam. The assessment adopted a functional unit of 1 m2 of gross floor area over a 60-year service life and considered life-cycle stages from material production to end-of-life. Two alternative design scenarios were compared: a conventional reinforced-concrete baseline and a low-carbon scenario incorporating supplementary cementitious materials, recycled steel, autoclaved aerated concrete blocks, photovoltaic systems and water-efficiency measures. The results demonstrate that the proposed low-carbon design significantly improves environmental performance. The total Global Warming Potential (GWP) decreased from 9.19 million kg CO2e to 5.93 million kg CO2e, representing a reduction of 35.4%. Material production stages (A1–A3) remained the dominant contributor, accounting for more than 75% of total life-cycle emissions in both scenarios. In addition, the low-carbon scenario achieved substantial reductions in ozone depletion, acidification, eutrophication and fossil fuel depletion, exceeding the environmental thresholds required for LEED v4.1 certification. This study contributes to the sustainable built-environment literature by providing one of the first empirical applications of a BIM-integrated LCA framework for hospitality buildings in Vietnam. The proposed approach demonstrates how BIM can be combined with life-cycle thinking to support early-stage environmental decision-making in data-constrained contexts. The findings provide practical guidance for architects, engineers and policymakers seeking to accelerate low-carbon building development and promote sustainable construction practices in emerging economies.

• semanticscholar https://doi.org/10.1108/sasbe-06-2026-0575first seen 2026-09-12 05:41:23 · last seen 2026-09-22 05:12:07