Cleat Angle Behavior in C-Shaped Purlin-to-Rafter Connections: Experimental Study and Design Considerations

Abstract

AbstractThis research examines the pull-through failure behavior of cold-formed steel (CFS) C-shaped purlin-to-rafter connections using a cleat angle. A total of 72 tests were performed to evaluate the influence of cross-sectional parameters, including ...The left section shows C-shaped purlins connected to rafters via cleat angles, supporting the roof sheeting subjected to wind uplift forces indicated by upward arrows. The right section presents a test setup simulating wind uplift with a vertical loading ...Practical ApplicationsUsing a cleat angle to connect the purlin to the rafter provides significant advantages over direct screw connections of the purlin to the rafter. The advantages include lesser impact of the connection failure at high speed winds ...