Dynamic behaviour of steel eccentrically braced frames having moment-shear link

This research is concerned with the dynamic behaviour of steel eccentrically braced frames (EBFs) having moment-shear link. The finite element software ABAQUS is used to analyse the EBFs. An experimentally tested EBF is modelled and the comparison of its obtained result with that of the experimental test validates the modelling method. An EBF is also designed having a moment-shear link. The designed EBF is modelled based on the verified modelling method. Then, the EBF is analysed under three selected earthquake records of Tabas, Chi-Chi, and Northridge. The lateral displacements, base shears, and energy dissipations of the EBF and also moment-shear link rotations are obtained from the results and compared. It is concluded that the largest to smallest values for the lateral displacement and base shear of the EBF, and also link rotation are all related to the Tabas, Chi-Chi, and Northridge records, respectively. However, the EBF dissipates the energy of the Tabas record more than the Northridge record, while, the latter is more than the Chi-Chi record.