Slip Coefficient and Ultimate Strength of High-Strength Bolted Friction Joints with Compact Bolt Spacing and Edge Distance

  • Shogo KiyokawaEmail author
  • Kazuo Tateishi
  • Takeshi Hanji
  • Masaru Shimizu


In current design codes, the minimum bolt spacing and edge distance for high-strength bolted friction joints are specified based on the bolt diameter, regardless of the plate thickness or steel strength. However, the mechanical performance of joints with a more compact bolt spacing than that given in the current design specifications has been little examined. In this study, the slip and ultimate strength of high-strength bolted joints with a compact bolt spacing and edge distance were investigated. Tensile tests were conducted on friction-type joints with various bolt arrangements. The use of a compact bolt arrangement was not observed to have a negative influence on the slip strength in these tests. The estimated strengths corresponding to the experimentally observed failure modes were found to agree fairly well with the experimental results within a 10% error. A parametric finite element analysis was also conducted to investigate the influence of the bolt arrangement on the slip coefficient. It was concluded that the bolt spacing and edge distance have little influence on the slip coefficient.


High-strength bolted friction joint Bolt arrangement Slip coefficient Strength after slip 


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Copyright information

© Korean Society of Steel Construction 2019

Authors and Affiliations

  1. 1.Technical Proposal DivisionYokogawa Bridge Corp.Sakai-CityJapan
  2. 2.Department of Civil and Environmental EngineeringNagoya UniversityNagoya-CityJapan

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