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Panel Bears on Bracket at Beam

Roof or floor panel bears on a steel angle connected to the side of the wood beam with partially-threaded screws.

Purpose: Transfer of vertical loads from roof or floor panel to wood beam. Can also transfer shear along the length of the beam.

Design Notes

Capacity of primary load path is controlled by perpendicular-to-grain bearing capacity of floor panel, or shear capacity of the bracket fasteners.
Panels may be routed at angle for flush finish.
Screws and bracket provide load path for in-plane loads.
Elevation control of bracket is critical.
In panel design, consider that panel is not continuous across connection and multi-span conditions may not be achievable.
Best practice according to APA and AITC is for dowel-type fastener connections in the side of a mass timber beam to occur above the neutral axis. In some situations, loading can occur below the neutral axis if fully threaded reinforcing screws are installed to resist forces that cause tension perpendicular to grain. See MTC Solutions’, Full Thread SWG ASSY Screws as Reinforcement.