The first set of systems covered in this synopsis is energy-dissipating fuses. This section includes different structural systems that include explicit components that dissipate energy through deformation of the system, including precast concrete walls, braced frame systems, and moment resisting frame systems. This section also includes systems with friction dampers, and specific instances of designs for high-rise buildings.

Braced fuse systems and joint fuse systems are examples of structures with energy-dissipating fuses. Kassis and Tremblay (2008) examined braced fuse systems for low-rise steel buildings. In this study, a braced fuse system was used to keep the braces in tension during ground motion, allowing for an increase in the design forces.

The results of quasi-static cyclic tests verified the seismic performance of the system and the effects of braced fuse systems on force demand in low-rise steel buildings. From test results, it was concluded that adding braced fuses in tension/compression (T/C) to moderately ductile (MD) braced frames was an effective way to reduce the connection tension design loads. However, one negative of this system is that the braced tension fuse systems are not replaceable if the connections are welded.

DSDF and SHJ have also been used as energy-dissipating fuses in the structures. The fuses were examined by MacRae (2008). The SHJ is a replaceable element that allows significant rotations of the beam end relative to the column face. The DSDF system showed no significant damage and behaved in an isotropic manner. Moreover, it exhibited self-centering capabilities. The floating plate can be replaced after yielding, since it is bolted to the system.