ABSTRACT
Inelastic cyclic testing showed the influence of the bolt spacing on the capacity of this BRM design to properly mitigate buckling of the core. In Test S1-1, the bolt spacing was not sufficient to prevent local buckling of the core and large out-of-plane deformations were observed in the BRM (Fig. 4). Contact between the core and the BRM also resulted in longitudinal frictional forces between these components and the brace overall compression resistance increased rapidly when imposing large negative axial deformations (Fig. 5). That test had to be interrupted before the BRM was damaged.
