How Strong Are Concrete Wedge Anchors? – TannerBolt.com Eddie Burlem, February 9, 2023February 16, 2024 Unlocking the Strength of Concrete Wedge Anchors: How Much Weight Can They Hold and How to Install them? A SD1 concrete wedge anchor is a fully threaded, torque-controlled wedge expansion anchor designed for consistent performance in cracked and uncracked concrete. Suitable base materials include normal-weight concrete, lightweight concrete, concrete over steel deck, and grouted concrete masonry. What are Some of the General Applications and Uses of Concrete Wedge Anchors Structural connections, i.e., beam and column anchorage Safety-related attachments Barriers and guards Fencing and railing What are the Features and Benefits of Concrete Wedge Anchors Consistent performance in high and low-strength concrete Nominal drill bit size is the same as the anchor diameter Anchor can be installed through standard fixture holes Length ID code and identifying marking stamped on the head of each anchor Anchor design allows for follow-up expansion after setting under tensile loading Approvals and Listings of SD1 Concrete Wedge Anchors International Code Council, Evaluation service (ICC-Es), Esr-2818 for cracked and uncracked concrete International Code Council, Evaluation service (ICC-Es), Esr-2966 for masonry Code compliant with the 2021 IBC/IrC, 2018 IBC/IrC, 2015 IBC/IrC, and 2012 IBC/IrC Tested in accordance with ACI 355.2/AsTM E488 and ICC-Es AC193 for use in structural concrete under the design provisions of ACI 318 (-19 or -14) Chapter 17 or ACI 318 Appendix D Evaluated and qualified by an accredited independent testing laboratory for recognition in cracked and uncracked concrete including seismic and wind loading (anchor Category 1) Tested in accordance with AsTM E488 and ICC-Es AC01 for use in masonry City of Los Angeles, LABC and LArC supplement (within Esr-2818 and Esr-2966) Florida Building Code, FBC supplement including HVHZ (within Esr-2818 and Esr-2966) Underwriters Laboratories (UL Listed) – File No. EX1289, see listing for sizes FM Approvals (Factory Mutual) – see FM Approval Guide for sizes Installation of Concrete Wedge Anchors Installing a concrete wedge anchor is not difficult, but it is important to use the correct tools and techniques to ensure a secure and reliable installation. Installation Instructions for Power-Stud+ SD1 Concrete Wedge Anchors Step 1 Using the proper drill bit size, drill a hole into the base material to the required depth. The tolerances of the drill bit used should meet the requirements of ANsI standard B212.15. Step 2 Remove the dust and debris from the hole during drilling (e.g. dust extractor, hollow bit) or following drilling (e.g. suction, forced air) to extract loose particles created by drilling. Step 3 Position the washer on the anchor and thread on the nut. If installing through a fixture, drive the anchor through the fixture into the hole. Be sure the anchor is driven to the minimum required embedment depth, hnom. Step 4 Tighten the anchor with a torque wrench by applying the required installation torque, Tinst. Note: The threaded stud will draw up during the tightening of the nut; the expansion wedge (clip) remains in its original position How Much Weight Can a Concrete Wedge Ancor Hold? Ultimate Load Capacities for Power-Stud+ SD1 in Normal-Weight Concrete 1,2 Nominal Anchor Diameter d in. Minimum Embedment Depthhnom in. (mm) Minimum Concrete Compressive Strength f’c = 2,500 psi (17.3 MPa) f’c = 3,000 psi (20.7 MPa) f’c = 4,000 psi (27.6 MPa) f’c = 6,000 psi (41.4 MPa) Tension lbs. (kN) Shear lbs. (kN) Tension lbs. (kN) Shear lbs. (kN) Tension lbs. (kN) Shear lbs. (kN) Tension lbs. (kN) Shear lbs. (kN) 1/4 1-1/8 (28) 1,320(5.9) 1,160(5.2) 1,435(6.4) 1,255(5.6) 1,660(7.4) 1,255(5.6) 1,660(7.4) 1,255(5.6) 1-3/4 (44) 2,775(12.4) 1,255(5.6) 2,775(12.4) 1,255(5.6) 2,775(12.4) 1,255(5.6) 2,775(12.4) 1,255(5.6) 3/8 1-5/8 (41) 2,240(10.9) 2,320(10.3) 2,685(12) 2,540(11.3) 3,100(13.8) 2,540(11.3) 3,100(13.8) 2,540(11.3) 2-3/8 (60) 3,485(15.5) 2,540(11.3) 3,815(17) 2,540(11.3) 4,410(19.6) 2,540(11.3) 5,400(24) 2,540(11.3) 1/2 2-1/4 (57) 3,800(16.9) 3,840(17.1) 4,155(18.5) 4,195(18.7) 4,800(21.4) 4,195(18.7) 4,800(21.4) 4,195(18.7) 2-1/2 (64) 3,910(17.4) 4,195(18.7) 4,285(19.1) 4,195(18.7) 4,950(22) 4,195(18.7) 6,060(27) 4,195(18.7) 3-3/4 (95) 7,955(35.4) 4,195(18.7) 8,715(38.8) 4,195(18.7) 10,065(44.8) 4,195(18.7) 12,325(54.8) 4,195(18.7) 5/8 2-3/4 (70) 4,960(22.1) 6,220(27.7) 5,440(24.3) 6,815(30.3) 6,285(28) 6,815(30.3) 6,285(28) 6,815(30.3) 3-3/8 (86) 6,625(29.5) 6,815(30.3) 7,260(32.3) 6,815(30.3) 8,380(37.3) 6,815(30.3) 10,265(45.7) 6,815(30.3) 4-5/8 (117) 11,260(50.1) 6,815(30.3) 12,335(54.9) 6,815(30.3) 14,245(63.4) 6,815(30.3) 14,465(65.7) 6,815(30.3) 3/4 3-3/8 (86) 7,180(31.9) 11,480(51.5) 7,860(32.2) 12,580(56.0) 9,075(40.5) 12,580(56.0) 9,075(40.5) 12,580(56.0) 4(102) 9,530(42.4) 12,580(56.0) 10,440(46.5) 12,580(56.0) 12,060(53.6) 12,580(56.0) 14,770(65.7) 12,580(56.0) 5-5/8 (143) 17,670(78.6) 12,580(56.0) 19,355(86.1) 12,580(56.0) 22,350(99.4) 12,580(56.0) 25,065(111.5) 12,580(56.0) 7/8 3-7/8 (98) 9,120(40.6) 10,680(47.5) 10,005(44.5) 11,690(52.0) 11,555(51.4) 11,690(52.0) 11,555(51.4) 11,690(52.0) 4-1/2 (114) 11,320(50.4) 11,690(52.0) 12,405(55.2) 11,690(52.0) 15,125(67.3) 11,690(52.0) 19,470(86.6) 11,690(52.0) 6-1/4 (159) 15,10567.2) 15,795(70.3) 16,545(73.6) 17,305(77.0) 19,105(85.0) 19,980(88.9) 19,105(85.0) 19,980(88.9) 1 4-1/2 (114) 12,400(55.2) 19,320(85.9) 13,580(60.4) 21,155(94.1) 15,680(69.7) 21,155(94.1) 15,680(69.7) 21,155(94.1) 5-1/2 (140) 16,535(73.6) 21,155(94.1) 18,115(80.6) 21,155(94.1) 20,915(93) 21,155(94.1) 25,615(114) 21,155(94.1) 8(203) 19,640(87.4) 21,155(94.1) 21,530(95.8) 21,155(94.1) 24,865(110.6) 21,155(94.1) 24,865(110.6) 21,155(94.1) 1-1/4 5-1/2 (140) 18,520(82.5) 26,560(118.1) 20,275(90.9) 29,105(129.4) 23,410(105.0) 29,105(129.4) 23,410(105.0) 29,105(129.4) 6-1/2 (165) 22,485(100.0) 29,105(129.4) 24,630(109.6) 29,105(129.4) 28,440(126.5) 29,105(129.4) 37,360(166.2) 29,105(129.4) Tabulated load values are for anchors installed in uncracked concrete with no edge or spacing considerations. Concrete compressive strength must be at the specified minimum at the time of installation. Ultimate load capacities must be reduced by a minimum safety factor of 4.0 or greater to determine allowable working loads. Click Here For a Full technical Guide to the SD1 Concrete Wedge Anchor Tanner, Has You Covered FASTENERS / ANCHORS / ABRASIVES / SECURITY / POWER TOOL ACCESSORIES / SAFETY Anchors