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This study presents an experimental investigation into the structural behaviour of truss-reinforced concrete (TRC) beams compared to conventional reinforced concrete (RC) beams. In RC construction, longitudinal steel bars and vertical stirrups are primarily used to resist bending and shear forces, respectively. The current research explores how replacing conventional stirrup and longitudinal reinforcement with a prefabricated steel truss cage influences the beam’s flexural and shear performance. Beams were tested under two-point loading to evaluate parameters such as deflection, stiffness and ultimate load capacity. Results indicate that TRC beams exhibit significantly reduced deflection, enhanced stiffness and improved post-yield resistance compared to their conventionally reinforced counterparts. Notably, an approximate 14% increase in ultimate load capacity was observed in the truss-reinforced beams. Additionally, the use of steel in the truss system proved to be more cost-efficient compared to standard reinforcement techniques. These findings suggest that TRC beams offer a structurally efficient and economical alternative for beam reinforcement in RC structures.

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Experimental Investigation of Structural and Flexural Performance in Concrete Beams Reinforced with Steel Truss Systems

  • 会议论文

  • 发表日期：

    2026年

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  • Mohammed Maaz,
  • Siri Hemanth,
  • R. Vedashree,
  • D. Shrinidhi,
  • Manoj

摘要

This study presents an experimental investigation into the structural behaviour of truss-reinforced concrete (TRC) beams compared to conventional reinforced concrete (RC) beams. In RC construction, longitudinal steel bars and vertical stirrups are primarily used to resist bending and shear forces, respectively. The current research explores how replacing conventional stirrup and longitudinal reinforcement with a prefabricated steel truss cage influences the beam’s flexural and shear performance. Beams were tested under two-point loading to evaluate parameters such as deflection, stiffness and ultimate load capacity. Results indicate that TRC beams exhibit significantly reduced deflection, enhanced stiffness and improved post-yield resistance compared to their conventionally reinforced counterparts. Notably, an approximate 14% increase in ultimate load capacity was observed in the truss-reinforced beams. Additionally, the use of steel in the truss system proved to be more cost-efficient compared to standard reinforcement techniques. These findings suggest that TRC beams offer a structurally efficient and economical alternative for beam reinforcement in RC structures.