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<p>The Balanced Cantilever Method (BCM) is an effective construction technique for bridge superstructures, offering advantages in minimizing temporary supports. However, the inclusion of roller joints at column heads introduces significant challenges in maintaining structural stability and sustainability during construction. This study systematically investigates the performance of three temporary support techniques—temporary steel shoring, reinforced concrete columns, and steel tie rods—by analyzing their effectiveness in stabilizing roller joint structures. Using the Ankeng Light Rail MRT System as a case study, a comprehensive multi-criteria evaluation framework incorporating Dr. Liu’s Sustainability Assessment System for Green Civil Infrastructures is employed. Key performance metrics, including structural safety, load distribution efficiency, economic feasibility, and environmental sustainability, are examined to identify the optimal construction method. The findings reveal that the steel tie rod system demonstrates the highest level of stability, cost-effectiveness, and sustainability, outperforming other temporary support techniques. This study contributes to the advancement of BCM bridge engineering by providing evidence-based recommendations for enhancing construction methodologies, ensuring safety, and promoting sustainable infrastructure practices. The results have significant implications for the design and execution of future bridge projects, particularly in complex structural environments where roller joints are implemented.</p>

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Challenges and sustainable solutions in bridge construction: a case study on the balanced cantilever method with roller joints at column heads

  • 期刊论文

  • 发表日期：

    2025年3月12日

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  • Chao-Pang Wang,
  • Tai-Yi Liu,
  • Ming-Gin Lee,
  • S. Ping Ho

摘要

The Balanced Cantilever Method (BCM) is an effective construction technique for bridge superstructures, offering advantages in minimizing temporary supports. However, the inclusion of roller joints at column heads introduces significant challenges in maintaining structural stability and sustainability during construction. This study systematically investigates the performance of three temporary support techniques—temporary steel shoring, reinforced concrete columns, and steel tie rods—by analyzing their effectiveness in stabilizing roller joint structures. Using the Ankeng Light Rail MRT System as a case study, a comprehensive multi-criteria evaluation framework incorporating Dr. Liu’s Sustainability Assessment System for Green Civil Infrastructures is employed. Key performance metrics, including structural safety, load distribution efficiency, economic feasibility, and environmental sustainability, are examined to identify the optimal construction method. The findings reveal that the steel tie rod system demonstrates the highest level of stability, cost-effectiveness, and sustainability, outperforming other temporary support techniques. This study contributes to the advancement of BCM bridge engineering by providing evidence-based recommendations for enhancing construction methodologies, ensuring safety, and promoting sustainable infrastructure practices. The results have significant implications for the design and execution of future bridge projects, particularly in complex structural environments where roller joints are implemented.