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I Simpson Strong-Tie®Anchoring&FasteilIng'Systems for Concrete and Masonry SIMPSON AT Design Information - Masonry StrongTie AT Allowable Tension and Shear Loads for Installations in Unreinforced Brick Masonry Walls- t Minimum URM Wall Thickness is 13" (3 wythes thick) IBC ;. .:;, - [11 li: . Min. Min. Tension Load Based ' Shear Load Based Min. on URM Strength on URM Strength Rod/Rebar Drill Embed. Vertical Horiz. 9 9 Dia./Size • Bit ' Depth Edge/End, Spacing Spacing --� m - - -- - - Dist. Minimum Net Mortar : Minimum Net Mortar in. Dia. in. Dist. Dist. in. Strength=50 psi Strength=50 psi (mm) in. 1 (mm) (mm) in. in. ---___^__-__-.�. _._..--__-__. SCREEN TUBE , (mm) (mm) Allowable lb.(kN) Allowable Ib.(kN) , Configuration A(Simpson Strong-Tie®ATS or ATSP Screen Tube Required) -1 C!) 3/4 8 24 18 18 _ 1,000 Io _ (19.1) 1 (203) (610) (457) (457) (4.4) #5 ` 1 8 24 18 18 _ 750 Configuration A 0 (15.9) (203) (610) (457) (457) (3,3) (Shear) C #6 1 8 24 18 18 - 1,000 Q (19.1) (203) (610) (457) (457) (4.4) W Configuration B(Simpson Strong-Tie ATS or ATSP Sccequired) ,,, > 3/4 13 16 18 24 / 1,200 ": 4,000 CO) 9 (19.1) 1 (330) (406) (457) (610) (5.3) (4.4) CD SCREEN TUBE Configuration C(Simpson Strong-Tie ATS Screen Tube an4-AST-Sieh Sleeve Require i 5/8 =. 24 18 18 1,200 750 22.5° \V•DIA. T 13 (15.9) 1 (610) (457) (457) (5.3) (3.3) ,'NAX__ THREADED Eo Q ROD 1. Threaded rods must comply with ASTM F1554 Grade 36 minimum. 2. All holes are drilled with a 1"diameter carbide-tipped drill bit with the drill set in the rotation-only mode. 3. The unreinforced brick walls must have a minimum thickness of 13 inches(three wythes of brick). e allowable load is applicable only where in-place shear tests indicate minimum net mortar strength of 50 psi. Configuration B he allowable load for Configuration B and C anchors subjected to a combined tension and shear load is (Tension&Shear) determined by assuming a straight-line relationship between allowable tension and shear. 6. The anchors installed in unreinforced brick walls are limited to resisting seismic or wind forces only. 7. Configuration A has a straight threaded rod or rebar embedded 8 inches into the wall with a31/32"diameter by sxsx 8-inch long screen tube(part#ATS758 or ATS758P).This configuration is designed to resist shear loads only. STEEL - 111.1 STEEL PLATE SCREEN TUBE 8. Configuration B has a 3/4"threaded rod bent and installed at a 22.5-degree angle and installed 13 inches I, into the wall,to within 1-inch(maximum)of the exterior wall surface.This configuration is designed to '-S®l STEEL SLEEVE resist tension and shear loads.The pre-bent threaded rod is installed with a 3132"diameter by 13-inch long screen tube(part#ATS7513 or ATS7513P). HE -®® Ve DIA. ROD 9. Configuration C is designed to resist tension and shear forces.It consists of a%"diameter,ASTM F1554 NUT 1111 1111 . Grade 36 threaded rod and an 8"long steel sleeve(part#AST800)and a 31/x2'diameter by 8-inch long screen tube(part#ATS758).The steel sleeve has a plastic plug in one end.A 6'by 6"by 34"thick ASTM A I l 36 steel plate is located on the back face of the wall. 10.Special inspection requirements are determined by local jurisdiction and must be confirmed by the local Configuration C O z building official. (Tension&Shear) z 11.Refer to in-service temperature sensitivity chart for allowable load adjustment for temperature. a o AT Allowable Tension and Shear Loads for Threaded Installation Instructions for 6Rod Anchors in Lightweight, Medium-Weight and IBC A * [ _.f-• Configuration C Normal-Weight Hollow CMU nim II Li`. 1.Drill hole perpendicular to the wall to a depth of 8"with a 1"diameter o Critical Critical 8-inch Hollow CMU Allowable Loads carbide-tipped drill bit(rotation o Roti Drill Embed. Based on CMU Strength only mode). Q Edge Spacing Dia. Bit Depth Dist. Dist. Tension Shear 2.Clean hole with oil-free compressed in. Dia. in. in in air and a nylon brush. (mm) in. (mm) (mm) own) Ultimate Allowable Ultimate Allowable 3.Fill 8"steel screen tube with mixed Ib.(kN) lb,(kN) lb.(kN) lb.(kN) 9 adhesive and insert into hole. o Anchor Installed in Face Shell with Simpson Strong-Tie ATSP(Plastic)Screen Tube 4.Insert steel sleeve slowly into screen %(9.5) 31h 12 8 1,545 310 1,385 275 tube(adhesive will displace). 9/1s (88.9) (305) (203) (6.9) (1.4) (6.2) 2) 5.Allow adhesive to cure(see cure schedule). 1/2 9/ 3//i 12 8 1,510 300 1,305 260 6.Drill through plastic plug in(inside)end (12.7) ; ii (88;9). i (305) (203) (6.7) (1.3) (5.8) (1.2) of steel sleeve with%"bit. 7.Drill completely through the wall with 5/E 1/43 12 8 1,590 320 1,345 270 3/4"carbide tipped concrete drill bit (15.9) (76.2) (305) (203) (7.1) (1.4) (6.0) (1.2) (rotation mode only). 1.Threaded rods must comply with ASTM F1554 Grade 36 minimum. 8.Insert%"rod through hole and attach 2.The tabulated allowable loads are based on a safety factor of 5.0 for installations under the IBC and IRC. metal plate and nut. 3.Edge distances may be reduced to 4"with a corresponding 37%reduction in tension capacity.Shear capacity is unaffected. r4.Values for 8-inch wide,lightweight,medium-weight and normal-weight concrete masonry units with min. compressive strength of 1,900 psi and 11/4"thick face shell. 5.Embedment depth is measured from the outside face of the concrete masonry unit. 6.Refer to in-service temperature sensitivity chart for allowable load adjustment for temperature. 7.Set drill to rotation-only mode when drilling into hollow CMU. *See page 12 for an explanation of the load table icons. 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