Comparative analysis of hysteretic behavior of beam-column joints in reinforced concrete structures
In order to validate the difference between traditional and prefabricated reinforced beam-column joints in stress and seismic behavior,the finite element models of traditional and prefabricated reinforced beam-column joints are established respec-tively with the help of nonlinear analysis function of ABAQUS,and the failure modes and hysteretic behaviors of them are analyzed by selecting rationale parameters.The results show that some of the steel bars in the traditional joint model have been destroyed under the same load,while the steel bars in the strengthened joint have not been destroyed,only some of the steel bars have en-tered the plastic deformation stage.By comparing the hysteretic curves,it is shown that the envelope area of the strengthened joint curve is obviously larger than that of the traditional joint,which shows that the energy dissipation capacity of the strengthened joint is better.Therefore,the stiffness,bearing capacity and energy dissipation capacity of fabricated strengthened joints are superior to those of traditional joints.
万方数据
维普
