Elasto-Plastic Short Exoskeleton to Improve the Dynamic and Seismic Performance of Frame Structures

The coupling with external mechanical systems such as oscillating masses working tuned mass dampers, dynamic absorbers, elasto-plastic and rigid walls is an effective method to reduce the displacements drifts of structures under loads. An alternative provided by structure independent, auxiliary system. This paper investigates seismic behaviour a rigidly coupled yielding system harmonic ground excitation. A two-degree-of-freedom model used describe main system, which described one-degree-of-freedom model. has constitutive that modelled Bouc-Wen equations motion are obtained direct approach. considered beneficial if respect those stand-alone frame structure. extensive parametric analysis performed point out role parameters Results reveal in large ranges parameters’ values, improves performance