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Simpson Anchors - Anchoring and Fastening Systems - BuildSite.com

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C-SAS-2009 © 2009 SIMPSON STRONG-TIE COMPANY INC.<br />

SET Technical Information<br />

Load-Adjustment Factors for SET Epoxy-Tie ® Adhesive in Face of Wall Installation in 8"<br />

Grout-Filled CMU: End / Edge Distance <strong>and</strong> Spacing, Tension <strong>and</strong> Shear Loads<br />

How to use these charts:<br />

1. The following tables are for reduced end <strong>and</strong> edge distance <strong>and</strong> spacing.<br />

2. Locate the anchor size to be used for either a tension <strong>and</strong>/or<br />

shear load application.<br />

3. Locate the embedment (E) at which the anchor is to be installed.<br />

4. Locate the end or edge distance (C act ) or spacing (S act ) at which the<br />

anchor is to be installed.<br />

End Distance Tension (fc)<br />

Dia. ¹⁄₂ ⁵⁄₈ ³⁄₄<br />

E 4¹⁄₄ 5 6³⁄₄<br />

Ccr 17 20 27<br />

Cmin 4 4 4<br />

fcmin 1.00 0.84 0.54**<br />

4 1.00 0.84 0.54<br />

8 1.00 0.88 0.62<br />

Cact<br />

(in.)<br />

12 1.00 0.92 0 70<br />

16 1.00 0.96 0 78<br />

17 1.00 0.97 0.80<br />

20 1.00 0.86<br />

24 0 94<br />

27 1.00<br />

See Notes Below<br />

End <strong>and</strong> Edge Distance<br />

Shear (fc) Shear Load<br />

Perpendicular to End or Edge<br />

Dia. ¹⁄₂ ⁵⁄₈ ³⁄₄<br />

E 4¹⁄₄ 5 6³⁄₄<br />

Ccr 17 20 27<br />

Cmin 4 4 4<br />

fcmin 0.43 0.25 0.25<br />

4 0.43 0.25 0 25<br />

8 0.61 0.44 0.38<br />

Cact<br />

(in.)<br />

12 0.78 0.63 0.51<br />

16 0.96 0.81 0.64<br />

17 1.00 0.86 0.67<br />

20 1.00 0 77<br />

24 0 90<br />

27 1.00<br />

Spacing Tension (fs)<br />

Dia. ¹⁄₂ ⁵⁄₈ ³⁄₄<br />

E 4¹⁄₄ 5 6³⁄₄<br />

Scr 17 20 27<br />

Smin 8 8 8<br />

fsmin 0.89 0.81 0.59<br />

8 0.89 0.81 0.59<br />

Sact<br />

(in.)<br />

12 0.94 0.87 0.68<br />

16 0.99 0.94 0 76<br />

17 1.00 0.95 0 78<br />

20 1.00 0.85<br />

24 0 94<br />

27 1.00<br />

*<br />

Edge Distance Tension (fc)<br />

Cact<br />

(in.)<br />

Dia. ¹⁄₂ ⁵⁄₈ ³⁄₄ *See page 10 for an<br />

E 4¹⁄₄ 5 6³⁄₄<br />

Ccr 17 20 27<br />

Cmin 4 4 4<br />

fcmin 1.00 0.84 0.54**<br />

4 1.00 0.84 0.54<br />

8 1.00 0.88 0.62<br />

12 1.00 0.92 0 70<br />

16 1.00 0.96 0 78<br />

17 1.00 0.97 0.80<br />

20 1.00 0.86<br />

24 0 94<br />

27 1.00<br />

See Notes Below<br />

*<br />

End <strong>and</strong> Edge Distance<br />

Shear (fc) Shear Load<br />

Parallel to End or Edge<br />

*<br />

Cact<br />

(in.)<br />

Dia. ¹⁄₂ ⁵⁄₈ ³⁄₄<br />

E 4¹⁄₄ 5 6³⁄₄<br />

Ccr 17 20 27<br />

Cmin 4 4 4<br />

fcmin 0.95 0.51 0.45<br />

4 0.95 0.51 0.45<br />

8 0.97 0.63 0.55<br />

12 0.98 0.76 0.64<br />

16 1.00 0.88 0 74<br />

17 1.00 0.91 0 76<br />

20 1.00 0.83<br />

24 0 93<br />

27 1.00<br />

* *<br />

Spacing Shear (fs)<br />

Sact<br />

(in.)<br />

8<br />

12<br />

16<br />

17<br />

20<br />

24<br />

27<br />

5. The load-adjustment factor (f c or f s ) is the intersection of the row <strong>and</strong> column.<br />

6. Multiply the allowable load by the applicable load-adjustment factor.<br />

7. Reduction factors for multiple edges or spacing are multiplied together.<br />

8. Adjustment factors do not apply to allowable steel strength values.<br />

9. Adjustment factors are to be applied to allowable Tension or Shear Load<br />

Based on CMU Strength values only.<br />

Dia. ¹⁄₂ ⁵⁄₈ ³⁄₄<br />

E 4¹⁄₄ 5 6³⁄₄<br />

Scr 17 20 27<br />

Smin 8 8 8<br />

fsmin 1.00 1.00 1.00<br />

1.00 for all spacing ≥ 8 in.<br />

*<br />

explanation of the<br />

load table icons<br />

**The allowable tension load reduction factor<br />

is permitted to equal 1.0 provided both of<br />

the following conditions are met:<br />

(a) The anchor is installed with a minimum<br />

end distance, Cmin, between 4 inches <strong>and</strong><br />

8 inches; <strong>and</strong> (b) a masonry return wall of<br />

identical construction is on the opposite side<br />

(such as two masonry walls intersecting at a<br />

building corner).<br />

1. E = Embedment depth (inches).<br />

2. Cact = actual end or edge distance at which<br />

anchor is installed (inches).<br />

3. Ccr = critical end or edge distance for 100%<br />

load (inches).<br />

4. Cmin = minimum end or edge distance for<br />

reduced load (inches).<br />

5. fc = adjustment factor for allowable load at<br />

actual end or edge distance.<br />

6. fccr = adjustment factor for allowable load<br />

at critical end or edge distance.<br />

fccr is always = 1.00.<br />

7. fcmin = adjustment factor for allowable load at<br />

minimum end or edge distance.<br />

8. fc = fcmin + [(1 - fcmin) (Cact - Cmin) / (Ccr - Cmin)].<br />

1. E = Embedment depth (inches).<br />

2. Sact = actual spacing distance at which<br />

anchors are installed (inches).<br />

3. Scr = critical spacing distance for<br />

100% load (inches).<br />

4. Smin = minimum spacing distance for<br />

reduced load (inches).<br />

5. fs = adjustment factor for allowable load<br />

at actual spacing distance.<br />

6. fscr = adjustment factor for allowable load<br />

at critical spacing distance. fscr is always = 1.00.<br />

7. fsmin = adjustment factor for allowable load<br />

at minimum spacing distance.<br />

8. fs = fsmin + [(1 - fsmin) (Sact - Smin) / (Scr - Smin)].<br />

Epoxy Adhesives<br />

53

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