This detail illustrates the connection of a built-up endwall column to an endwall rafter. Built-up columns are fabricated from plate steel rather than standard cee sections, and are typically used when higher load capacities are required at endwall locations, such as for larger door openings or greater building heights.
The endwall rafter has a welded clip attached to the flange, which provides the connection point for the built-up endwall column. The column web is positioned against the welded clip and secured with bolts through the pre-punched holes. Unlike standard cee column connections that specify hardware in the detail, this connection requires referring to the endwall drawing for bolt quantity, diameter, and type, as these will vary based on the specific engineering requirements of each building.
When installing, ensure the built-up endwall column is plumb and properly aligned with the welded clip before inserting and tightening all bolts. This connection transfers roof loads from the endwall rafter down through the column to the foundation, and the bolted connection must be fully secured to maintain structural integrity.
