Using ABAQUS Software Simulated The Seismic Behavior Of Reinforced Concrete Column

Reinforced concrete structure is one of the most popular structures in China.For this kind of structure,the research on experiment and theoretical of seismic performance has become more and more mature.But in terms of nonlinear finite element simulation,there is a great exploration of space.In the process of general nonlinear finite element software simulation,bond-slip effect between rebar and concrete are usually neglected.In this paper,using the nonlinear finite element software ABAQUS to trial and comparing the current epidemic constitutive relation of rebar,concrete and rebar-concrete bond-slip to find out the constitutive relation which can be used in ABAQUS software,and using the nonlinear spring element to simulate the bond-slip behavior between rebar and concrete.Through exploring the influence of concrete compression stiffness recovery factor to the result of monotonic loading model,selecting suitable parameters such as compressive stiffness recovery factor in concrete damaged plasticity,and make a simulation of the reinforced concrete column hysteretic behavior for the same model.Comparing the result between the simulation and experiments,the difference is so little,so it can be used as a reference.Because of the bond slip behavior between rebar and concrete has considered in the simulation process this paper,compared the obtained hysteretic curve to another hysteretic curve,which has not considered the bond-slip behavior between rebar and concrete,the ‘Knead gathering effect’ is more obvious.According to the analysis in this paper,the hysteresis curve results of using ABAQUS software for nonlinear finite element simulation are good agreement with the result of experiments.So ABAQUS software simulation can provide reference value for the research on the seismic performance of reinforced concrete.