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Mechanical Anchors 118 STRONG-BOLT Wedge Anchor for Cracked and Uncracked Concrete Strong-Bolt Anchor Shear Design Data 1 Characteristic Symbol Units ¹⁄₂ Nominal Anchor Diameter (inch) ⁵⁄₈ ³⁄₄ 1 Embedment Depth hnom in. 2³⁄₄ 3⁷⁄₈ 5 3³⁄₈ 5¹⁄₈ 6¹⁄₈ 4¹⁄₈ 5³⁄₄ 7¹⁄₂ 5¹⁄₄ 9³⁄₄ Nominal Steel Strength in Shear Vsa lb. Steel Strength in Shear 6,560 10,475 19,305 15,020 Strength Reduction Factor – Steel Failure φ – 0.652 0.652 0.602 0.652 Concrete Breakout Strength in Shear5 Outside Diameter do in. 0.5 0.625 0.75 1.00 Load Bearing Length of Anchor in Shear e in. 2.25 3.375 4.00 2.75 4.50 5.00 3.375 5.00 6.00 4.50 8.00 Strength Reduction Factor – Concrete Breakout Failure φ – 0.703 Concrete Pryout Strength in Shear Coefficient for Pryout Strength kcp – 1.0 2.0 Strength Reduction Factor – Concrete Pryout Failure φ – 0.704 Steel Strength in Shear for Seismic Applications Nominal Steel Strength in Shear for Seismic Loads Veq lb 6,560 8,380 9,715 10,475 15,445 17,305 19,305 15,020 Strength Reduction Factor – Steel Failure φ – 0.652 0.652 0.602 0.652 1. The information presented in this table is to be used in conjunction with the design criteria of ACI 318 Appendix D, except as modified below. 2. The value of φ applies when the load combinations of ACI 318 Section 9.2 are used. If the load combinations of ACI 318 Appendix C are used, refer to Section D4.5 to determine the appropriate value of φ. The ³⁄₄ inch diameter is considered as a brittle steel element. The ¹⁄₂ inch, ⁵⁄₈ inch, and 1 inch diameters are considered as ductile steel elements. Strong-Bolt Anchor Tension and Shear Data for Normal-Weight or Sand-Lightweight Concrete over Metal Deck 1,2 Characteristic Symbol Units Nominal Anchor Diameter (inch) ¹⁄₂ ⁵⁄₈ Embedment Depth hnom in. 2³⁄₄ 4¹⁄₂ 3³⁄₈ 5⁵⁄₈ Effective Embedment Depth hef in. 2.25 4.00 2.75 5.00 Installation Torque Tinst ft-lb 40 40 40 50 Pullout Resistance, concrete on metal deck (cracked) 3,4 Npn,deck,cr lb 1,3356 1,905 2,835 3,665 Pullout Resistance, concrete on metal deck (uncracked) 3,4 Npn,deck,uncr lb 1,8306 2,610 3,780 4,885 Steel Strength in Shear, concrete on metal deck5 Vst,deck lb 4,4056 6,690 6,270 8,865 1. The information presented in this table is to be used in conjunction with the design criteria of ACI 318 Appendix D, except as modified below. 2. Concrete compressive strength shall be 3,000 psi minimum. 3. For anchors installed in the soffit of sand-lightweight or normal-weight concrete over metal deck floor and roof assemblies, as shown in Figure A, calculation of the concrete breakout strength may be omitted. 4. In accordance with ACI 318 Section D.5.3.2, the nominal pullout strength in cracked concrete for anchors installed in the soffit of sand-lightweight or normal-weight concrete over metal deck floor and roof assemblies Npn,deck,cr shall be substituted for Npn,cr. Where analysis indicates no cracking at service loads, the normal pullout strength in uncracked concrete Npn,deck,uncr shall be substituted for Npn,uncr. 5. In accordance with ACI 318 Section D.6.1.2 (c), the shear strength for anchors installed in the soffit of sand-lightweight or normal-weight-concrete-over-metal-deck floor and roof assemblies Vst,deck shall be substituted for Vsa. 6. Values applicable to both the lower and the upper flute, see Figure A. 7. Minimum distance to edge of panel is 2hef. 3. The value of φ applies when both the load combinations of ACI 318 Section 9.2 are used and the requirements of Section D4.4(c) for Condition B are met. If the load combinations of ACI 318 Section 9.2 are used and the requirements of Section D4.4(c) for Condition A are met, refer to Section D4.4 to determine the appropriate value of φ. If the load combinations of ACI 318 Appendix C are used, refer to Section D4.5 to determine the appropriate value of φ. 4. The value of φ applies when both the load combinations of ACI 318 Section 9.2 are used and the requirements of Section D4.4(c) for Condition B are met. If the load combinations of ACI 318 Appendix C are used, refer to Section D4.5 to determine the appropriate value of φ. 5. For sand-lightweight concrete, in lieu of ACI 318 Section D.3.4, modify the value of Vn by multiplying all values of √f'c affecting Vn by 0.60. All-lightweight concrete is beyond the scope of this table. MAX. 3" * MIN. 1¹⁄₂" MIN. ¹⁄₂" TYP. MIN. 4¹⁄₂" MIN. 3,000 PSI NORMAL OR SAND-LIGHTWEIGHT CONCRETE UPPER FLUTE MIN. 4¹⁄₂" MIN. 12" TYP. MAX. 1" OFFSET, TYP. Figure A Installation in Concrete over Metal Deck * *See page 10 for an explanation of the load table icons MIN. 20 GAUGE STEEL DECK LOWER FLUTE C-SAS-2009 © 2009 SIMPSON STRONG-TIE COMPANY INC.
C-SAS-2009 © 2009 SIMPSON STRONG-TIE COMPANY INC. TITEN HD ® Heavy Duty Screw Anchor for Concrete and Masonry IBC ® TESTED TO MEET 2006 The Titen HD ® anchor is a patented, high-strength screw anchor for concrete and masonry. It is designed for optimum performance in both cracked and uncracked concrete; a requirement that the 2006 IBC places on post-installed anchors. The high strength, easy to install Titen HD anchor has been tested and shown to provide outstanding performance in cracked and uncracked concrete under both static and seismic loading conditions. The self-undercutting, non-expansion characteristics of the Titen HD anchor make it ideal for structural applications, even at reduced edge distances and spacings. Recommended for permanent dry, interior non-corrosive environments or temporary outdoor applications. PERFORMANCE FEATURES: • Tested per AC193 to ensure outstanding performance in both cracked and uncracked concrete • Higher load capacity and vibration resistance: Threads along the length of the anchor undercut the concrete and effi ciently transfer the load to the base material. • Vibration and Shock Resistance: The mechanical interlock of the threads and the ratchet teeth on the underside of the head help prevent the anchor from loosening in vibratory conditions. The Titen HD anchor has been tested to 12.6 million vibratory cycles with no performance reductions. • Specialized Heat Treating Process: Creates superior surface hardness at the tip to facilitate cutting, while at the same time not compromising ductility within the anchor body. • Less spacing and edge distance required: The anchor does not exert expansion forces on the base material. • Easy post-installation inspection: The head is stamped with the Simpson Strong-Tie ® "≠" sign and the anchor length in inches. INSTALLATION FEATURES: • No special drill bit needed: Designed to install using standard sized ANSI tolerance drill bits • Installs with 50% less torque: Testing shows that when compared to competitors, the Titen HD requires 50% less torque to be installed in concrete. • Hex-washer head: Requires no separate washer and provides a clean installed appearance.* • Removable: Ideal for temporary anchoring (e.g. formwork, bracing) or applications where fi xtures may need to be moved. Re-use of the anchor to achieve listed load values is not recommended. See reinstallation note on next page. MATERIAL: Carbon steel, heat treated FINISH: Zinc plated or mechanically galvanized CODES: ICC-ES ESR-2713 (concrete); ICC-ES ESR-1056 (CMU); City of L.A. RR25741(concrete) City of L.A. RR25560(CMU); Florida FL 11506.7; Factory Mutual 3017082. The load tables list values based upon results from the most recent testing and may not refl ect those in current code reports. Where code jurisdictions apply, consult the current reports for applicable load values. TEST CRITERIA: The Titen HD ® anchor has been tested in accordance with ICC-ES AC193, ACI 355.2 and ICC-ES AC106 for the following: • Static tension and shear loading in cracked and uncracked concrete • Seismic and wind loading in cracked and uncracked concrete • Performance in cracked concrete Anchor Fatigue Testing: Tested in accordance with ASTM E 488 for the effects of fatigue. 25% of the average ultimate load was applied to the anchor for 2 million cycles at a frequency of 15 Hz. Subsequent load tests showed no reduction in ultimate tension capacity. Vibratory Load Testing: A 150 lb. concrete block was suspended from a ³⁄₈" diameter anchor embedded at 1¹⁄₂" and vibrated for 12.6 million cycles at a frequency of 30 Hz and an amplitude of 0.0325 inches. Subsequent load test showed no reduction in ultimate tension capacity. Field Testing: For guidance on fi eld testing see technical bulletin T-SAS-THDINSP. INSTALLATION: Holes in metal fi xtures to be mounted should match the diameter specifi ed in the table on the next page. Caution: Oversized holes in the base material will reduce or eliminate the mechanical interlock of the threads with the base material and will reduce the anchor's load capacity. Use a Titen HD screw anchor one time only. Installing the anchor multiple times may result in excessive thread wear and reduce load capacity. • Drill a hole in the base material using a carbide drill bit the same diameter as the nominal diameter of the anchor to be installed. Drill the hole to the specifi ed embedment depth plus ¹⁄₂" minimum to allow the thread tapping dust to settle and blow it clean using compressed air. Overhead installations need not be blown clean. Alternatively, drill the hole deep enough to accommodate embedment depth and dust from drilling and tapping. • Insert the anchor through the fi xture and into the hole. • Tighten the anchor into the base material until the hex washer head contacts the fi xture. • If the anchor will not install completely, remove the anchor and assure that all dust has been evacuated or drill the hole deeper. Begin re-installation of the anchor by hand to prevent cross-threading. • Do not use impact wrenches to install into hollow CMU. SUGGESTED SPECIFICATIONS: Screw anchors shall have 360-degree contact with the base material and shall not require oversized holes for installation. Fasteners shall be manufactured from carbon steel, and are heat-treated. Anchors shall be zinc plated in accordance with ASTM B633 or mechanically galvanized in accordance with ASTM B695. Anchors are not to be reused after initial installation. Screw anchors shall be Titen HD ® anchors from Simpson Strong-Tie, Pleasanton, CA. Anchors shall be installed per the Simpson Strong-Tie instructions for the Titen HD anchor. *Some jurisdictions require an additional square plate washer for sill plate applications. Titen HD ® screw anchor U.S. Patent 5,674,035 & 6,623,228 Suitable for use in place of code anchor bolts. Installation Sequence Serrated teeth on the tip of the Titen HD ® screw anchor facilitate cutting and reduce installation torque. Software Supported New longer ¹⁄₂" diameter Titen HD anchors achieve suffi cient embedment depth to develop tension loads equal to many Simpson Strong-Tie holdowns that specify a ⁵⁄₈ " diameter anchor. Testing has been conducted to assure compatibility of these holdowns’ anchor holes with the ¹⁄₂" Titen HD screw anchor. ¹⁄₂" min Mechanical Anchors 119
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