2021 Volume 27 Issue 66 Pages 732-737
During an earthquake, the members surrounding the damper are subjected to combined bending moment and axial force produced cyclically by the actions of the damper and frame, respectively. Damper force and damper deformation have shifted phase, and the latter is in-phase with the frame story drift, which makes phase difference between the bending moment and axial force. In this paper, we propose data analysis method. It will be used to obtain internal bending moments and axial forces of all beams and columns damped frame, they are obtained based on the phase difference of the frame and damper actions.
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