Equation for achieving efficient length of link-beams in eccentrically braced frames and its reliability validation

This study addresses the question of selecting efficient length of link-beam for the models with eccentrically braced frames, broadly used seismic-resisting systems, in view of minimizing the amount of dispersion in structural responses. The evaluation has been conducted by the help of the proposed equations considering different height of structures subjected to far and near-field ground motions. In addition, reliability assessment of the EBF frames supports validating proposed equations considering failure probability for each model by the help of β-unzipping method. There is very acceptable conformity for the efficient length of link-beam achieved based on deterministic analyzing by the help of the proposed equations and probabilistic analysis by the help of β-unzipping method which illustrates accuracy and practicality of the introduced equations.