Braced Frame Using Asymmetrical Friction Connections (AFC)
A single storey moment resisting frame with one bay and equipped with a concentric AFC brace was tested. The asymmetrical friction connection brace (AFC brace) was assembled using one 250PFC channel, two Bisalloy 500 shims, and two M16 Grade 8.8 galvanized bolts. Results show that by introducing the AFC brace, the frame can undergo drifts up to 3.0% without yielding any frame member or component, and more importantly with low degradation on the AFC detail. Results also show that the amount of load that the frame can absorb during a seismic event can be controlled by the AFC brace strength.