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The built environment significantly contributes to Greenhouse Gas emissions, resource consumption, and waste generation. Circular Construction (CC) and Timber Construction with Prefabricated Components (TCPC) are seen as key contributors to curb these environmental hazards, with digital design workflows as major enablers. However, the integration of effective assessment procedures for CC into digital design workflows remains insufficient. This study addresses the gap by proposing a prototypical workflow for real-time circularity assessment through the operationalization of selected metrics. Utilizing Building Information Modelling (BIM) and Business Intelligence (BI) technologies, two metrics from the German Sustainable Building Council (DGNB) Circularity Index (CI), Material Origin and Recyclability, were operationalized. The four-stage workflow, comprised of semantic BIM modelling, Life-Cycle-Assessment (LCA) data mapping, circularity metric computation, and BI visualization, was implemented on an exemplary component catalogue. The prototype demonstrates the feasibility of integrating circularity metrics into digital workflows, enabling real-time, component-level evaluation. Despite the limited scope, focusing on two metrics and a small component catalogue, the workflow exhibits considerable potential in replicability. Future developments should expand the metric library, improve automation, and enable broader applicability. Ultimately, the approach supports low-effort, continuous assessments of environmental trade-offs during design, contributing to data-driven sustainable planning.

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Digitalizing Circular Construction: Operationalizing Circularity Metrics Through BIM and BI–Integrated Workflows in Timber Prefabrication

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Johannes Reinders,
  • Rosa Pulido,
  • Sebastian Orozco,
  • Yaoning Yang,
  • Ignacio Borrego

摘要

The built environment significantly contributes to Greenhouse Gas emissions, resource consumption, and waste generation. Circular Construction (CC) and Timber Construction with Prefabricated Components (TCPC) are seen as key contributors to curb these environmental hazards, with digital design workflows as major enablers. However, the integration of effective assessment procedures for CC into digital design workflows remains insufficient. This study addresses the gap by proposing a prototypical workflow for real-time circularity assessment through the operationalization of selected metrics. Utilizing Building Information Modelling (BIM) and Business Intelligence (BI) technologies, two metrics from the German Sustainable Building Council (DGNB) Circularity Index (CI), Material Origin and Recyclability, were operationalized. The four-stage workflow, comprised of semantic BIM modelling, Life-Cycle-Assessment (LCA) data mapping, circularity metric computation, and BI visualization, was implemented on an exemplary component catalogue. The prototype demonstrates the feasibility of integrating circularity metrics into digital workflows, enabling real-time, component-level evaluation. Despite the limited scope, focusing on two metrics and a small component catalogue, the workflow exhibits considerable potential in replicability. Future developments should expand the metric library, improve automation, and enable broader applicability. Ultimately, the approach supports low-effort, continuous assessments of environmental trade-offs during design, contributing to data-driven sustainable planning.