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Connections with beams framing into columns or other beams are designed for gravity loads and (seismic) pullout loads. They will not be subject to uplift loads.
These connections are not designed to provide lateral restraint for purlins and beams.
Bolts and shear plates are available for these connections. Shear plates are not used for what are usually seismic loads on side plates attached to purlins. Shear plate connections have shear plates for the face plate attached to the main member, and bolts for the side plate.
Gravity loads on the purlin are supported by a bearing plate.
The heights of side plates are a proportion of the depth of the beam. This proportion is set in the initialization file, and the factory default is 1/3. Fasteners are centered in that height if edge distances will allow it. The length of the side plates is the minimum required for the connectors using wood and steel end distances.
The practical limitations implemented to deal with wood movement are discussed in the Steel Design section.
Connections with a beam over a column are designed for the worst case of the uplift and gravity loads.
A bearing plate is inserted if required to increase the bearing area on the beam to resist gravity loads.
Sloped beam-to-beam default angle is set in the initialization file. The factory default is 30 degrees.