持続可能な橋梁建設における環境・炭素コスト影響のライフサイクル評価

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

🔬研究者:建設資材のライフサイクル排出と炭素価格を統合した評価枠組みの実証例として参照できる。

🏢実務担当者:鉄鋼・コンクリート調達の脱炭素化が炭素コスト削減に最も効くことを示し、調達戦略と内部炭素価格設定に活用できる。

🏛政策担当者:インフラ公共調達に炭素価格を組み込む際の費用対効果の根拠として参考になる。

Bridge construction plays a vital role in the development of transportation development. It also has impacts on environmental because of the large amount use of construction materials. Along with conventional construction costs, bridge projects generate significant carbon costs resulting from greenhouse gas (GHG). These costs are becoming increasingly important in project planning and decision making as carbon tax and carbon trading policies gain wider adoption. This study evaluates the environmental impacts and carbon costs of sustainable bridge construction using a life cycle assessment (LCA). The assessment follows the ISO 14040 and ISO 14044 standards. Three key stages are considered: raw material production, transportation of materials, and on-site construction activities considering with Srinagar, India, as the case study. In addition, a carbon cost evaluation framework incorporating carbon tax and carbon trading mechanisms is applied. to find out the carbon emissions. The results indicate that raw material production is the main source of environmental impacts, resulting for more than 92% of the total GHG and carbon costs. Steel manufacturing contributes the big share of emissions, followed by concrete production. Transportation and on-site construction events together contribute less than 8% of the overall environmental impact. This study highlights that integrating life cycle carbon assessment with carbon pricing mechanisms provides a practical decision support framework for sustainable bridge construction.

• semanticscholar https://doi.org/10.1109/ce2ct68422.2026.11756470first seen 2026-11-12 05:40:47 · last seen 2026-11-13 05:48:48