A constitutive model for a novel modular all-steel buckling restrained brace

摘要

Buckling Restrained Braces (BRBs) are installed in buildings to control lateral displacements caused by seismic events. Modelling BRBs involves predicting their hysteretic load-deformation curve and failure. We can distinguish between global models, adjusted with experimental tests, and local models, based on the constitutive equations for materials. Local models are usually implemented in FEM codes and, while they also require experimental verification, they can be extended to a wider range of geometries and materials.