The Analysis Of Beam-Column Node Of Reinforced Concrete Structure

There are many tests about beam-column node. some measures are taken to ensure the strength and ductility of beam-column node in design code of reinforced concrete. But there are not many examples about analyzing the mechianical behavior of beam-column node.By following the rules which is from simple to complex, nonlinear finite element analysis of reinforced concrete beam and reinforced concrete beam-column node were completed in this paper .The method which was used to analyze beam-column nodes by using finite element was discussed.The mechianical behavior of beam-column node was analyzed.The characteristics of reinforced concerte structure ,the research status of reinforced concerte ,the trend of reinforced concerte of development ,the significance of studyding the mechianical behavior of beam-column node and the research progress were introduced in this paper.Firstly ,the paper discussed the stress-strain relationship of concrete and reinforcement in the theories; Secondly, the paper discussed the nonlinear finite element model of reinforcement and concrete;Finally,the paper simulated a reinforced concrete beam and beam-column node successfully by using ABAQUS.Reinforcement was based on ideal elastic-plastic model.Concrete was based on damaged plasticity model.Reinforcement model and concrete model were set independently when finite element elasto-plastic analysis was carried out. Firstly this paper verifyied the reliability of analyzing reinforced concrete structure by using ABAQUS.Then,this paper analyzed beam-column node of reinforced concrete structure and discussed the effect of axial compression ratio and stirrup ratio of node on the mechianical behavior of beam-column node. In the end,this paper discussed some problems which were not solved in present in the area. The achievement of this paper has certain reference value in the structure design area of the reinforced concrete,...