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Shogo Kiyokawa,Kazuo Tateishi,Takeshi Hanji,Masaru Shimizu 한국강구조학회 2019 International Journal of Steel Structures Vol.19 No.4
In current design codes, the minimum bolt spacing and edge distance for high-strength bolted friction joints are specifi ed 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 specifi cations 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 infl uence 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 fi nite element analysis was also conducted to investigate the infl uence of the bolt arrangement on the slip coeffi cient. It was concluded that the bolt spacing and edge distance have little infl uence on the slip coeffi cient.