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CPTZ Concealed Post Tie


The CPTZ concealed post base provides a clean, concealed look while providing a 1" standoff height above concrete. The 1" standoff reduces the potential for decay at the post end and satisfies code requirements for posts that are exposed to weather, water splash or in basements..

Material: See table below

Finish: Knife plate, washers and standoff base are ZMAX®-galvanized steel. The standoff base has an additional textured, flat black powder coat finish for aesthetic purposes. The 1/2" diameter drift dowels are mechanically galvanized in accordance with ASTM B695, class 55. If substituting 1/2" diameter machine bolts, a hot-dip galvanized finish is recommended.

See Corrosion Information.

Installation:


top Gallery:
  roll over images below to see larger image
 
CPT44Z
(others similar)
Typical CPT44Z Installation Corner Flush Edge Corner Near Edge
(Away from edge similar)
     
Circular Pedestal Edge Distance Corner Installation Circular Pedestal Installation  

top Load Table: See code report listings below
Additional Corrosion Protection

These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

Table
  1. Uplift loads have been increased for wind or earthquake load with no further increase allowed; reduce where other loads govern.
  2. Downloads may not be increased for short-term loading and shall not exceed the post capacity. See Post Capacities for common post capacities.
  3. CPTZs are supplied with (3) 1/2" diameter dowel pins. Alternate 1/2" diameter hex or square head machine bolts may be used for loads listed.
  4. Lag or carriage bolts are not permitted.
  5. 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 dowel or bolt installation into the wide face.


CPTZ Anchorage Using SET-XP® Anchoring Adhesive
Table
  1. Allowable uplift loads are calculated per ACI 318-11, Appendix D considering cracked and uncracked concrete and are qualified for Wind and Seismic Design Categories A & B. No further increases allowed.
  2. Edge distance is measured from the center line of the nearest anchor bolt to the edge of concrete.
  3. Foundation dimensions are for anchorage only. Foundation design by others. Refer to ACI318-11.
  4. Lateral loads (F1 = F2) for Corner – Flush Edge conditions are CPT44Z = 395 lbs., CPT66Z = 570 lbs., CPT88Z = 740 lbs. For all other installations using CPTZ with SET-XP® anchoring adhesive, use the allowable loads from the CPTZ table above.
  5. Concrete shall have a minimum compressive strength, f'c = 2500 psi..


CPTZ Cast-in-Place Anchorage
Table
  1. Allowable uplift loads are calculated per ACI 318-11, Appendix D considering cracked and uncracked concrete and are qualified for Wind and Seismic Design Categories A & B. No further increases allowed.
  2. Edge distance is considered to be measured from the center line of the nearest anchor bolt to the edge of concrete.
  3. Tabulated anchor embedments will also achieve the maximum lateral loads from the CPTZ table above.
  4. Foundation dimensions are for anchorage only. Foundation design by others. Refer to ACI318-11.

next  top Code Reports (PDFs):
Legacy Reports
  IAPMO UES ER ICC-ES ESR CITY OF LOS ANGELES STATE OF FLORIDA ICC-ES NER ICC-ES ER ICC-ES ES
CPT44Z  ESR-1622          
CPT66Z  ESR-1622          
CPT88Z  ESR-1622          
CPTZ  ESR-1622          



next  topDrawings: To download drawings, right-click or Ctrl-click on the link, then choose "Save Target As..."
Download the Simpson Strong-Tie® AutoCAD® Menu, which allows you to insert Ortho views directly into your AutoCAD drawing.

 ORTHOGRAPHIC
PERSPECTIVE
CPT44Z CPT44Z front view: DWG | DXF
CPT44Z right view: DWG | DXF
CPT44Z top view: DWG | DXF
CPT44Z: DWG | DXF
CPT66Z CPT66Z front view: DWG | DXF
CPT66Z right view: DWG | DXF
CPT66Z top view: DWG | DXF
CPT66Z: DWG | DXF
CPT88Z CPT88Z front view: DWG | DXF
CPT88Z right view: DWG | DXF
CPT88Z top view: DWG | DXF
CPT88Z: DWG | DXF
CPTZNone for this model None for this model

   
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