Scholarlink

Concrete-filled steel tubular (CFST) structures are commonly used in the construction of arch bridges due to their unique advantages. The joints connecting the chord and brace members are crucial for the safety of CFST bridges. While welding has traditionally been used for these connections, bolted connections are becoming viable alternatives in challenging environments where on-site welding is not feasible. This paper presents recent research advancements in the tensile behavior of individual blind bolt in CFST structures and explores the use of demountable K-joints formed by CFST chords and circular hollow section (CHS) braces connected through blind bolts. Additionally, the feasibility of the new design is evaluated by comparing the overall behavior of the bolted joints with traditional welded ones.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Research Advancements on Blind Bolted Connections to Concrete-Filled Steel Tubular Chords

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Zhenbo Yu,
  • Chao Hou

摘要

Concrete-filled steel tubular (CFST) structures are commonly used in the construction of arch bridges due to their unique advantages. The joints connecting the chord and brace members are crucial for the safety of CFST bridges. While welding has traditionally been used for these connections, bolted connections are becoming viable alternatives in challenging environments where on-site welding is not feasible. This paper presents recent research advancements in the tensile behavior of individual blind bolt in CFST structures and explores the use of demountable K-joints formed by CFST chords and circular hollow section (CHS) braces connected through blind bolts. Additionally, the feasibility of the new design is evaluated by comparing the overall behavior of the bolted joints with traditional welded ones.