Plastic hinge and seismic structural measures of terminal stirrup-confined rectangular CFT columns under low-cyclic load
Liang Luo, Fa-xing Ding, Liping Wang, Xue-mei Liu
Journal of Building Engineering | ELSEVIER | Published : 2021
Based on the plastic-damage constitutive model of concrete and elastic-plastic mixed strengthen constitutive model of steel material, the finite element software ABAQUS was used to build an elaborate 3D finite element (FE) solid model and perform pseudo-static analysis of terminal stirrup-confined concrete-filled rectangular steel tubular columns (SCFT) in this study. The FE model considers the confinement effect of both the steel tube and the stirrups exerting on the core concrete and the cumulative damage effect due to the horizontal cyclic load. Good agreement was achieved between the FE results and the existing quasi-static experimental results regarding to the load-displacement hysteret..View full abstract
Awarded by National Key R&D Program of China
Awarded by Doctor Start-up Fund Program of Nanchang Hangkong University
This research work was financially supported by the National Key R&D Program of China, Grant No. 2017YFC0703404 and the Doctor Start-up Fund Program of Nanchang Hangkong University, Grant No. EA201911291.