Seismic performance analysis on energy dissipating self-centering hinge joint frame based on Pushover method
The static Pushover analysis method is adopted to study the seismic performance of reinforced con-crete frames with energy dissipating self-centering hinge joint(EDSC-HJ).Firstly,the structure of EDSC-HJ frame is introduced,and the finite element model of EDSC-HJ frame structure is established,and the correct-ness of the numerical simulation is verified by comparing with the shaking table test results.Secondly,the Pushover method is employed to assess the seismic performance of EDSC-HJ frame both with and without dampers and determine the mechanical parameters of the joint elastic force-restoring device and the energy-dis-sipating device.The results indicate that the reasonable range of relative rotational stiffness ratio of beam-col-umn nodes of the EDSC-HJ frame is 0.05-0.5;the interlayer displacement responses of the EDSC-HJ frame with dampers decrease by 76％and meet the limit requirements;the base shear responses of the EDSC-HJ frame with dampers increase by 23％due to the additional lateral stiffness of the structure increased by the set-ting of dampers.The seismic performance of EDSC-HJ frame is obviously better than that of reinforced con-crete frame(RCF)structure,and it has good toughness structure characteristics.
Pushover analysisseismic performanceenergy dissipating self-centering hinge jointfinite element modeldamper
万方数据
维普
