Simpson Strong-Tie Anchor Systems® products offer several post-installed anchorage solutions for holdowns and bases. Often times these products are used when cast-in-place anchors are omitted or mislocated, or in retrofit applications. The following design values provide solutions to common applications encountered in the light frame construction market.
For a more complete solution guide refer to the Anchoring Solutions for Simpson Strong-Tie® Connectors technical bulletin (T-ANCHORSPEC). For complete information on product performance, installation requirements and appropriate code listings for Anchor Systems products please refer to the specific web pages for Simpson Strong-Tie Anchor Systems Adhesives, Mechanical Anchors, and Powder Actuated Fastening Systems .
Also see Corrosion Information.
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Also see product information for Adhesive Anchor Solutions for use with Cold Formed Steel.
Tension Loads for Threaded Rod in Concrete Slab
Edge and end distances for threaded rod in concrete stemwall
- The allowable loads listed under bond strength are based on a safety factor of 4.0.
- Allowable bond strength loads may be increased 33 1/3% for short term loading due to wind or seismic forces where permitted by code.
- The allowable tension load is the lesser of the allowable load based on bond strength and the allowable load based on steel strength (A36 rod shown).
- Minimum f'c = 2000 psi.
- Anchors are not permitted for use in conjunction with fire-resistive construction. Exceptions are: (1) Anchors designed to resist wind or seismic loading only, (2) For other than wind or seismic loading, special consideration is given to fire exposure conditions.
- Anchors are not permitted to resist tension forces in overhead or wall installations unless proper consideration is given to fire-exposure and elevated temperature conditions.
Tension Loads for Threaded Rod
in Concrete Stemwall
NEW longer 1/2" diameter Titen HD anchors achieve sufficient embedment depth to yield tension loads equal to certain Simpson holdowns. Now instead of using cast-in-place bolts or adhesive anchors, the Titen HD can be used as a time saving alternative. Reference flier F-SAS-THD4HD for more information.
Also see product information for Titen HD Threaded Anchor for use with Cold Formed Steel.
Tension Loads in Normal Weight Concrete Stemwall
- The allowable loads listed are based on a safety factor of 4.0.
- Allowable loads may be increased 33 1/3% for short term loading due to wind or seismic forces where permitted by code.
- The minimum anchor spacing is 15 inches.
- The minimum concrete thickness is 12 inches.
- Allowable loads may be interpolated for compressive strengths between 2,500 and 4,500 psi.
- Titen HD available in 12", 13", 14" and 15" for this application.
