Structural · S-B3BAN

HSS Column to CLT and Glulam Connections

Materials

Steel Timber / Wood

Elements

Beams Doors Decks Connections / Plates

Connections

HSS Connection Timber / Mass-Timber Connection

About this detail

Three structural connections involve hollow structural section columns and mass timber elements. The first connection features an HSS column supporting a cross-laminated timber deck using an L6x4x5/16-inch angle with three 5/16-by-3-1/8-inch kombi screws in each leg at 1-1/2-inch center-to-center minimum, staggered, and two 3/4-inch diameter bolts with standard vertical slots centered in the mid-depth of the angle leg. The second connection features an HSS column supporting an HSS beam beneath a nailer and CLT deck, welded with a 1/4-inch fillet weld. The third connection details an HSS beam framing into a glulam column using a 1/4-by-6-by-1-2-inch plate with six total 1/4-inch diameter by 4-1/2-inch self-drilling screws at 3-inch center-to-center minimum top and bottom, staggered, along with a 1/4-inch fillet weld.

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