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The non-cell steel-concrete composite joint, serving as a critical nodal point in hybrid beam structures, features an innovative configuration and experiences intricate stress distributions. This study delves into the stress characteristics of the steel-concrete composite joint and scrutinizes the impact of key design parameters such as the thickness of steel flanges, web thickness and prestressing loads. The results indicate that augmenting the thickness of steel flanges promotes more uniform load transmission to the compression plate, with recommended thicknesses ranging from 18 mm to 22 mm. Furthermore, appropriately augmenting prestressing loads can effectively mitigate phenomena such as debonding between concrete and the compression plate and pullout of anchor bolts.

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Analysis of Design Parameters and Bending Tests for Post-Tensioned Steel-Concrete Composite Joints in Gridless Chambers

  • 会议论文

  • 发表日期：

    2025年

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  • Chenzi Huai,
  • Ji Yang,
  • Yi Huang,
  • Yingsen Miao,
  • Zuohang Zhang,
  • Jun Luo

摘要

The non-cell steel-concrete composite joint, serving as a critical nodal point in hybrid beam structures, features an innovative configuration and experiences intricate stress distributions. This study delves into the stress characteristics of the steel-concrete composite joint and scrutinizes the impact of key design parameters such as the thickness of steel flanges, web thickness and prestressing loads. The results indicate that augmenting the thickness of steel flanges promotes more uniform load transmission to the compression plate, with recommended thicknesses ranging from 18 mm to 22 mm. Furthermore, appropriately augmenting prestressing loads can effectively mitigate phenomena such as debonding between concrete and the compression plate and pullout of anchor bolts.