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ESR-3699 Page 6 of 18 <br /> <br /> <br />Vn = Lowest design strength of an anchor or anchor group in shear as determined in <br />accordance with ACI 318 (-19 and -14) Chapter 17 and 2021, 2018 and 2015 IBC <br />Section 1905.1.8, ACI 318-11 Appendix D, and Section 4.1 of this report, as <br />applicable (lbf or kN). For the 2012 IBC, Section 1905.1.9 must be omitted. <br /> = Conversion factor calculated as a weighted average of the load factors for the controlling <br />load combination. In addition,  must include all applicable factors to account for <br />nonductile failure modes and required over-strength. <br />Limits on edge distance, anchor spacing and member thickness as given in Section 4.1.11 of this report must <br />apply. An illustrative example of allowable stress design values is shown in Table 4. <br />4.2.2 Interaction of Tensile and Shear Forces: The interaction must be calculated and consistent with ACI <br />318-19 17.8, ACI 318-14 17.6 or ACI 318-11 D.7, as applicable, as follows: <br />If Tapplied  0.2 Tallowable,ASD, the full allowable load in shear Vallowable,ASD shall be permitted. <br />If Vapplied  0.2 Vallowable,ASD, the full allowable load in tension Tallowable,ASD shall be permitted. <br />For all other cases: <br />2.1+ <br />ASDallowable, <br />applied <br />ASDallowable,V <br />V <br />T <br />Tapplied <br /> (Eq-6) <br /> <br />4.3 Installation: <br />Installation parameters are provided in Table 1 and Figures 4 and 6 of this report. The Tapcon+ Screw Anchors <br />and SAMMYS Anchors must be installed in accordance with the manufacturer’s published instructions and this <br />report. In case of conflict, this report governs. Anchor locations must comply with this report and the plans and <br />specifications approved by the code official. <br />4.3.1 Tapcon+ Screw Anchors with Advanced Threadform Technology: 1/4-inch-, 3/8-inch-, and 1/2-inch- <br />diameter (6.4 mm, 9.5 mm, and 12.7 mm) Tapcon+ Screw Anchors must be installed according to ITW’s <br />published instructions and this report. For the 1/4-inch-diameter (6.4 mm) anchor, the holes must be predrilled <br />in concrete with a carbide-tipped drill bit complying with ANSI B212.15-1994 or a Tapcon+ carbide-tipped drill <br />bit, supplied by ITW. For the 3/8-inch- and 1/2-inch-diameter (9.5 mm and 12.7 mm) anchors, the holes must be <br />predrilled in concrete with a carbide-tipped drill bit complying with ANSI B212.15-1994. The hole must be drilled <br />to the specified minimum hole depth, hhole, in accordance with Table 1. Before anchor installation, dust and <br />other debris must be removed by use of a vacuum or compressed air. The anchors must then be installed <br />through the attachment into the hole, in accordance with ITW’s instructions, to the specified nominal <br />embedment depth using a powered impact wrench or manual torque wrench until the proper embedment depth <br />is obtained. The maximum impact wrench torque and maximum installation torque for the manual torque <br />wrench must be in accordance with Table 1. The Tapcon+ Screw Anchors may be loosened by a maximum of <br />one turn and retightened with a manual torque wrench or powered impact wrench to facilitate fixture attachment <br />or realignment. Complete removal and reinstallation of the anchor is not allowed. <br />For installation of the 1/2-inch-diameter (12.7 mm) Tapcon+ Screw Anchor in the soffit of concrete on steel <br />deck assemblies, the hole diameter in the steel deck must not exceed the diameter of the hole in the concrete <br />by more than 1/8 inch (3.2 mm). For member thickness and edge distance restrictions for installations into the <br />soffit of concrete on steel deck assemblies, see Figure 6. <br />4.3.2 SAMMYS Anchors for Threaded Rod: The SAMMYS Anchors must be installed according to ITW’s <br />published instructions and this report. Holes must be predrilled in concrete with a Tapcon carbide-tipped drill <br />bit complying with ANSI B212.15-1994, supplied by ITW. The hole must be drilled to the specified nominal <br />embedment depth plus a minimum of 1/4 inch (6.4 mm). Before anchor installation, dust and other debris must <br />be removed by use of a vacuum or compressed air. The anchors must then be installed into the hole, in <br />accordance with ITW’s instructions, to the specified nominal embedment depth using a powered impact wrench <br />in conjunction with the ITW torque limiting nut driver until the proper embedment depth is obtained. Removal <br />and reinstallation of the anchor is not allowed. <br />4.4 Special Inspection: <br />Periodic special inspection is required in accordance with Section 1705.1.1 and Table 1705.3 of the 2021, <br />2018, 2015 and 2012 IBC, as applicable. The special inspector must make periodic inspections during anchor <br />installation to verify anchor type, anchor dimensions, concrete type, concrete compressive strength, hole