www.strongtie.com


>>Home   > All Products - Alphabetical List

HDC Concentric Holdown


The unique design of the HDC holdowns eliminate eccentricity. They install with Simpson Strong-Tie® Strong-Drive® SDS screws (included) to reduce slip and provide a greater net section area of the post compared to bolts.

Material: 10 gauge strap

Finish: Galvanized strap, aluminum base

Installation:

For holdowns, per ASTM test standards, anchor bolt nuts should be finger-tight plus 1/3 to 1/2 turn with a hand wrench, with consideration given to possible future wood shrinkage. Care should be taken not to over-torque the nut. Impact wrenches should not be used.

top Gallery:
  roll over images below to see larger image
 
HDC10
Patents:
U.S. 6,513,290
Canada 2,364,585
Typical HDC Installation
with 2-2x4 studs
(Similar with 2-2x6 studs)

top Load Table: See code report listings below
Table
  1. The Designer must specify anchor bolt type, length and embedment. See SB and SSTB Anchor Bolts.
  2. Loads are based on static tests on wood studs, limited by the lowest of 0.125" deflection, tested lowest ultimate divided by 3, or the wood screw value.
  3. Deflection at Highest Allowable Tension Load includes fastener slip, holdown elongation, and anchor bolt elongation.
  4. The HDCs will be limited by wood compression capacity if installed on a sill plate. HDC10/22 will achieve an allowable load of 4005 lbs. on a DFL plate. HDC10/4 will achieve an allowable load of 4940 lbs. on a DFL plate, which does not take deflection into account. Full tension values apply when installed on a sill, deflections may be higher.
  5. Higher values may be obtained when HDC is not placed at an edge or with f'c concrete strength > 2500 psi.
  6. 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 bulletinn T-SCLCOLUMN for values on the narrow face (edge).
  7. Post design shall be by Designer. See Post Capacities for common post allowable loads.

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
HDCSee specific model numbers for code listings.
HDC10/22-SDS2.5  ESR-2330 / ESR-2523 *          
HDC10/4-SDS2.5  ESR-2330 / ESR-2523 *          
HDC5/22-SDS2.5 No code listing. Please contact us for test data.
HDC5/4-SDS2.5 No code listing. Please contact us for test data.

* ESR-2523 is an Index of many of Simpson Strong-Tie Stamped and Welded Cold-formed Steel Products for Wood or Cold-formed Steel Construction

top


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
HDCNone for this model High Wind-Resistant Construction D100: Holdowns: Typical HDC Installation with 2-2x4 Studs: DWG | DXF
HDC: DWG | DXF
HDC10/22 HDC10/22: DWG | DXF
HDC10/22 front view: DWG | DXF
HDC10/22 left view: DWG | DXF
HDC10/22 right view: DWG | DXF
HDC10/22 top view: DWG | DXF
None for this model
HDC10/4 HDC10/4: DWG | DXF
HDC10/4 front view: DWG | DXF
HDC10/4 left view: DWG | DXF
HDC10/4 right view: DWG | DXF
HDC10/4 top view: DWG | DXF
None for this model
HDC5/22 HDC5/22: DWG | DXF
HDC5/22 front view: DWG | DXF
HDC5/22 right view: DWG | DXF
HDC5/22 top view: DWG | DXF
None for this model
HDC5/4 HDC5/4: DWG | DXF
HDC5/4 front view: DWG | DXF
HDC5/4 right view: DWG | DXF
HDC5/4 top view: DWG | DXF
None for this model

   
top
Order free catalogs by mail
top top top top
Printed from
© 2013 Simpson Strong-Tie Company Inc.