Column caps provide a high capacity connection for column-beam combinations. This design uses Simpson Strong-Tie® Strong-Drive® SDS Heavy-Duty Connector screws to provide faster installation and provides a greater net section area of the column compared to bolts. The SDS screws provide for a lower profile compared to standard through bolts.
Material: CCQ3, ECCQ3, CCQ4, CCQ4.62, ECCQ4, ECCQ4.62, CCQ6, ECCQ6—7 gauge; all others—3 gauge.
Finish: Simpson Strong-Tie® gray paint, available in HDG;
CCOQ and ECCOQ—no coating
Installation:
- Install Simpson Strong-Tie SDS 1/4″x2 1/2″ wood screws, which are provided with the column cap. (Lag screws will not achieve the same load.)
- CCOQ and ECCOQ column cap only (no straps) may be ordered for field-welding to pipe or other columns. Dimensions are same as CCQ and ECCQ. Load values do not apply.
- For rough cut lumber sizes, provide dimensions. An optional W2 dimension may be specified with any column size given. (Note that the W2 dimension on straps rotated 90° is limited by the W1 dimension.)
Options:
- For end conditions, specify ECCQ.
- Straps may be rotated 90° where W1 ≥ W2 and for CCQ5-6.
- Uplift loads have been increased for wind or earthquake with no further increase allowed; reduce where other loads govern.
- Down loads may not be increased for short-term loading and shall not exceed the post capacity. See Post Capacities for common post allowable loads.
- Uplift loads do not apply to splice conditions.
- Spliced conditions must be detailed by the Designer to transfer tension loads between spliced members by means other than the column cap.
- Column sides are assumed to lie in the same vertical plane as the beam sides. CCQ4.62 models assume a minimum 3 1/2″ wide post.
- Structural composite lumber columns have sides that show either the wide face or the edges of the lumber strands/veneers. Values in the tables reflect installation into the wide face. See technical bulletin T-C-SCLCLM for values on the narrow face (edge).
- ECCQ uses 14-SDS screws into the beam and 14-SDS screws into the post.
- Beam depth must be a minimum 7″.
- For 5 1/4″ engineered lumber, use 5 1/2″ models.
- CCOQ and ECCOQ welded to steel column will achieve same load as CCQ and ECCQ. Steel column width shall not be less than beam width. Weld by Designer.
