Multiple Beams Bear on Girders on Bearing Plate with Steel Standoff
Columns are separated by a custom steel standoff with bearing plates, beams bear on girder, and girder bears on lower column bearing plate. Positive connections between the beams and girders vary. Bearing plates are attached to columns with screws or threaded rods with adhesive.
Purpose: Transfer of vertical load from beams and girders to column. Connection accommodates column above.
- Alternate connections for columns include bucket plates with through-bolts.
- Alternate connections for beams include knife plates, which also provide capacity for drag element.
- Girders may be simple-span or continuous over column.
- Capacity is limited by girder perpendicular-to-grain bearing.
- Additional screws in the members can provide increased shear capacity. Additional information can be found in MTC Solutions’ Full Thread SWG ASSY Screws in Reinforcement.
- See the 2018 NDS and American Institute of Timber Construction’s AITC Technical Note 19 Guidelines for Evaluation of Holes and Notches in Structural Glued Laminated Timber Beams for notch sizing. A deep notch methodology is provided in MTC Solutions ASSY Screws as Tensile Reinforcement in Notched Beams.
- It is recommended that screws installed in beam are slightly overdriven to account for beam shrinkage.
- Deck not shown for clarity. Beam may require bracing for lateral-torsional buckling.
- Class 2
- Load High
- Cost $$$
- Constructability Advanced
- Fire Rating III