Cyclic Collector Force with Rotation Tests on TFW, in Advancing Knowledge on the Performance of Seismic Collectors in Steel Building Structures

Cyclic Collector Force with Rotation Tests on TFW were conducted to understand the effect of column rotation on the behavior of Top Flange Weld (TFW) collector connection. A test collector with top flange weld (TFW) connection, was designed, fabricated, and tested under cyclic collector force in presence of forward and backward column rotation without composite slab and gravity loading. The reaction column was rotated to prescribed rotation with the help of reaction end actuators while keeping the loading actuators free to move. Then the cyclic collector force loading was applied as force-controlled loading through the loading actuators. The test provides effect of column rotation on TFW connection strain demand & evolution, and connection strength. The connection was subjected to destructive loading after completing all the loading in presence of rotations.