The presence of the link beam in eccentrically braced frames is primarily responsible for different behavior of this frame with other structural systems. In accordance with the FEMA 356. for the evaluation of the performance of the link beam in all of its behavioral areas. the plastic rotation of the plastic hinges is required. https://www.roneverhart.com/Lindell-Audio-LIN76-Vintage-Limiting-Amplifier-p14154/