D. To design an HCBB connection
To design a horizontal brace-column-beam gusset connection, use the following procedure.
HCBB connections apply to joints with the following conditions:
- at least one column with an H section at the joint
- column is vertical (perpendicular to beams)
- two perpendicular beams with H section and one brace with an angle section
- beams should be parallel with the ground (X-Z plane when Y is up)
- the brace should be in the same plane with the beams, with the angle between the brace and either beam between 30° and 60°