earticle

영어

This study is an experimental study to evaluate the tensile performance of an eccentric flange-bolted joint that cuts the one side of flange exposed to the outside to install finishing materials and prevent damage when connecting flanges of steel pipes. The characteristics of tensile behavior according to the number and thickness of flanges (flange thickness: 4.0, 4.5, 6.0, 8.0, 9.0 mm, number of bolts: 3, 4, 5) were investigated. In addition, it was simulated through linear finite element analysis, and as a result of the experiment, when the number of bolts and flange thickness of the eccentric joint increased, the yield strength and maximum strength except for some increased. It was found that the ductility decreased as the flange thickness increased. It was found that the yield strength and maximum strength decreased when the number of EFP bolts was 5 compared to when the number of bolts was 4. When estimating the cause of the decrease, it is considered that the bolt pitch is narrow, so the ductility of the plate is lowered, and the flange does not contribute to the overall tensile joint strength, and the tensile member alone reaches the maximum strength. Based on this study, various theoretical and numerical analysis studies should be conducted, and this series of studies can present economical and efficient guidelines for the installation and external finishing of steel pipe truss structures.