Anchorage Adhesives
Typically rod runs will terminate at the foundation, using the dead load of the concrete to ultimately resist the uplift demands. The building code does, however, allow the Designer of Record to use a percentage of the dead load expected to exist during a wind event (with the percentage based on load combinations for either Strength or Allowable Stress Design). Consequently, if the uplift loads are low enough and dead loads are high enough, it is possible to terminate the rod runs under upper wood floors.
| AC391 Criteria Section | AC391 Requirement |
|---|---|
| 6.2.4.5 and 6.3.3.5 | Design of the anchorage is the responsibility of the design professional and must be performed in accordance with the applicable code. |
SET-3G™ High-Strength Epoxy Adhesive
SET-3G is the latest innovation in epoxy anchoring adhesives from Simpson Strong-Tie. Formulated to provide superior performance in cracked and uncracked concrete at elevated temperatures, SET-3G installs and performs in a variety of environmental conditions and temperature extremes. The exceptional bond strength of SET-3G results in high design strengths at shallow embedment depths.
AT-XP® Fast-Curing Anchoring Adhesives
AT-XP anchoring adhesive from Simpson Strong-Tie has been formulated for high-strength anchorage of threaded rod and rebar into concrete under a wide range of conditions, such as cold weather installations. Code listed per IAPMO UES ER-263 in accordance with ICC-ES AC308, ACC355.4 and IBC 2012 requirements for cracked and uncracked concrete in static or seismic conditions, AT-XP anchoring adhesive has demonstrated superior performance in reduced-temperature testing (14°F (–10°C)).
Allowable (ASD) Tension Loads for Post-Installed Anchors into Uncracked Concrete for Wind Loads
- Allowable tension loads are based on the Strength Design provisions of ACI 318-14 and have been converted to Allowable Stress Design (ASD) levels by applying a 0.6 factor for Wind loads.
- Tabluated values are applicable to the conditions listed below. Refer to the Simpson Strong-Tie Anchor Designer™ software for other conditions.
- Minimum concrete compressive strength = 2,500 psi
- Uncracked concrete
- Dry concrete
- Periodic special inspection
- Maximum short-term temperature = 150°F
- Maximum long-term temperature = 110°F
- Tabulated values apply to design tension loads consisting of 100% wind loads.
Technical Data
| Anchor Diam. (in.) | Center of Interior Thickened Slab | Edge of Turned Down Slab or Stemwall | Edge of Elevated Slab | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Embed. Depth (in.) | Min. End Dist. (in.) | Min. Concrete Thick. (in.) | SET-XP | AT-XP | Embed. Depth (in.) | Min. Concrete Thick. (in.) | Min. End Dist. (in.) | SET-XP | AT-XP | Embed. Depth (in.) | Min. Concrete Thick. (in.) | Min. End Dist. (in.) | SET-XP | AT-XP | |||||
| 1¾ Edge Dist. | 2¾ Edge Dist. | 1¾ Edge Dist. | 2¾ Edge Dist. | 1¾ Edge Dist. | 2¾ Edge Dist. | 1¾ Edge Dist. | 2¾ Edge Dist. | ||||||||||||
| 3/8 | 3 | 8 | 4.875 | 2,006 | 2,109 | 7 | 8.875 | 8 | 2,605 | 2,733 | 2,605 | 2,733 | 6 | 10 | 8 | 2,359 | 3,002 | 2,461 | 3,122 |
| 5 | 8 | 6.875 | 3,299 | 3,394 | 7 | 8.875 | 12 | 2,871 | 3,035 | 2,871 | 3,035 | 7 | 12 | 12 | 2,753 | 3,502 | 2,871 | 3,642 | |
| 1/2 | 4 | 8 | 6.500 | 2,617 | 3,568 | 8.5 | 11.000 | 8 | 2,605 | 2,605 | 2,605 | 2,733 | 6 | 10 | 8 | 2,250 | 2,660 | 2,727 | 3,273 |
| 5 | 8 | 7.500 | 3,271 | 4,460 | 8.5 | 11.000 | 12 | 3,099 | 3,204 | 3,099 | 3,204 | 7 | 12 | 12 | 2,625 | 3,103 | 3,181 | 3,819 | |
| 5/8 | 5 | 8 | 8.125 | 2,753 | 3,786 | 9.5 | 12.625 | 8 | 2,605 | 2,733 | 2,605 | 2,733 | 6 | 10 | 8 | 2,270 | 2,622 | 2,982 | 3,460 |
| 6 | 8 | 9.125 | 3,304 | 4,544 | 9.5 | 12.625 | 12 | 3,099 | 3,204 | 3,099 | 3,204 | 8 | 12 | 12 | 3,042 | 3,514 | 3,976 | 4,613 | |
| 3/4 | 6 | 8 | 9.750 | 2,807 | 3,813 | 10.5 | 14.250 | 8 | 2,605 | 2,733 | 2,605 | 2,733 | 6 | 10 | 8 | 2,183 | 2,482 | 3,039 | 3,448 |
| 8 | 8 | 11.750 | 3,743 | 4,721 | 10.5 | 14.250 | 12 | 3,099 | 3,102 | 3,099 | 3,204 | 8 | 12 | 12 | 3,127 | 3,556 | 4,403 | 4,994 | |
| Anchor Diam. (in.) | Center of Interior Thickened Slab | Edge of Turned Down Slab or Stemwall | Edge of Elevated Slab | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Embed. Depth (in.) | Min. End Dist. (in.) | Min. Concrete Thick. (in.) | SET-XP | AT-XP | Embed. Depth (in.) | Min. Concrete Thick. (in.) | Min. End Dist. (in.) | SET-XP | AT-XP | Embed. Depth (in.) | Min. Concrete Thick. (in.) | Min. End Dist. (in.) | SET-XP | AT-XP | |||||
| 1¾ Edge Dist. | 2¾ Edge Dist. | 1¾ Edge Dist. | 2¾ Edge Dist. | 1¾ Edge Dist. | 2¾ Edge Dist. | 1¾ Edge Dist. | 2¾ Edge Dist. | ||||||||||||
| 3/8 | 3 | 8 | 4 7/8 | 1,979 | 1,265 | 7 | 8 7/8 | 8 | 1,565 | 1,640 | 1,565 | 1,640 | 6 | 10 | 8 | 1,415 | 1,800 | 1,475 | 1,875 |
| 5 | 8 | 6 7/8 | 3,299 | 2,035 | 7 | 8 7/8 | 12 | 1,725 | 1,820 | 1,725 | 1,820 | 7 | 12 | 12 | 1,650 | 2,100 | 1,725 | 2,185 | |
| 1/2 | 4 | 8 | 6 1/2 | 1,570 | 2,140 | 8 1/2 | 11 | 8 | 1,565 | 1,565 | 1,565 | 1,640 | 6 | 10 | 8 | 1,350 | 1,595 | 1,635 | 1,965 |
| 5 | 8 | 7 1/2 | 1,965 | 2,675 | 8 1/2 | 11 | 12 | 1,860 | 1,920 | 1,860 | 1,920 | 7 | 12 | 12 | 1,575 | 1,860 | 1,910 | 2,290 | |
| 5/8 | 5 | 8 | 8 1/8 | 1,650 | 2,270 | 9 1/2 | 12 5/8 | 8 | 1,565 | 1,640 | 1,565 | 1,640 | 6 | 10 | 8 | 1,360 | 1,575 | 1,790 | 2,075 |
| 6 | 8 | 9 1/8 | 1,980 | 2,725 | 9 1/2 | 12 5/8 | 12 | 1,860 | 1,920 | 1,860 | 1,920 | 8 | 12 | 12 | 1,825 | 2,110 | 2,385 | 2,770 | |
| 3/4 | 6 | 8 | 9 3/4 | 1,685 | 2,290 | 10 1/2 | 14 1/4 | 8 | 1,565 | 1,640 | 1,565 | 1,640 | 6 | 10 | 8 | 1,310 | 1,490 | 1,825 | 2,070 |
| 8 | 8 | 11 3/4 | 2,245 | 2,835 | 10 1/2 | 14 1/4 | 12 | 1,860 | 1,860 | 1,860 | 1,920 | 8 | 12 | 12 | 1,875 | 2,135 | 2,640 | 2,995 | |