Seismic response of steel fibre reinforced concrete beam–column joints

摘要: Abstract The present research work aims to investigate numerically the behaviour of steel fibre reinforced concrete beam–column joints under seismic action. Both exterior and interior joint types were examined 3D nonlinear finite element analyses carried out using ABAQUS software. subjected reversed-cyclic loading, combined with a constant axial force on column representing gravity loads. initially calibrated existing experimental data – ascertain validity numerical model used then parametric studies different ratios coupled increased spacing shear links. aim was assess effect introducing fibres into mix in order compensate for reduced amount conventional transverse reinforcement hence lessen congestion latter. This is particularly useful designed withstand loading as code requirements (e.g. Eurocode 8) lead high links provided protect critical regions. between by 0%, 50% 100%, whilst volume fraction (Vf) 1%, 1.5%, 2% 2.5%. Potential enhancement ductility, key requirement design, investigated well potential improvements energy absorption confinement. also structural issues such strength, storey drift, plastic hinges formation cracking patterns.