CITY OF LOS ANGELES CALIFORNIA

Transcription

1 BOARD OF BUILDING AND SAFETY COMMISSIONERS VAN AMBATIELOS INTERIM PRESIDENT E. FELICIA BRANNON JOSELYN GEAGA-ROSENTHAL GEORGE HOVAGUIMIAN JAVIER NUNEZ CITY OF LOS ANGELES CALIFORNIA ERIC GARCETTI MAYOR DEPARTMENT OF BUILDING AND SAFETY 20 NORTH FIGUEROA STREET LOS ANGELES, CA 9002 RAYMOND S. CHAN, C.E., S.E. GENERAL MANAGER FRANK BUSH EXECUTIVE OFFICER Hilti, Inc. RESEARCH REPORT: RR S. 22 nd East Avenue (CSI # ) Tulsa, OK 7448 BASED UPON ICC ES EVALUATION SERVICE Attn: Peter Anderson REPORT NO. ESR-027 (98) REEVALUATION DUE DATE: March, 206 Issued Date: November, 204 Code: 204 LABC GENERAL APPROVAL Technical Modification - Hilti Kwik HUS-EZ (KH-EZ) Carbon Steel Screw Anchors For Use in Cracked and Uncracked Concrete. DETAILS When in compliance with the use, description, design, installation, conditions of approval, and identification of Evaluation Report No. ESR-027, reissued December, 20 and revised March, 204, of the ICC-ES Evaluation Services, Incorporated. The report, in its entirety, is attached and made part of this general approval. Portions of Report No. ESR-027 excluded on the attached copy has been removed by the City of Los Angeles Building and Safety Department as not being included in this approval. The approval is subject to the following conditions:. The allowable and strength design values listed in the attached report and tables are for the fasteners only and do not include supporting members. The supporting members shall be checked separately for structural adequacy. 2. The anchors shall be identified by labels on the packaging indicating the manufacturer s name and product designation.. The anchors shall be installed in accordance with the manufacturer s published installation instructions. Copies of the installation instructions shall be available at each job site. RR Page of LADBS G-5 (Rev.08/2) AN EQUAL EMPLOYMENT OPPORTUNITY - AFFIRMATIVE ACTION EMPLOYER

2 Hilti, Inc. Re: Hilti Kwik HUS-EZ (KH-EZ) Carbon Steel Screw Anchors For Use in Cracked and Uncracked Concrete. 4. Design values for tension and shear designs shall be per Tables 2 and in ICC ES Report No. ESR The concrete shall obtain its minimum design strength prior to installation of the anchors. 6. Special inspection in accordance with Section 704 of the 204 City of Los Angeles Building Code shall be provided for anchor installations. 7. The use of anchors is limited to dry interior locations. 8. The anchors are not approved for masonry application. 9. Calculations demonstrating that the applied loads or factored loads are less than the allowable load values or design strength level values respectively, described in this report shall be submitted to Structural Plan Check at the time of permit application. The calculations shall be prepared by a Civil or Structural Engineer registered in the State of California. EXCEPTION: Anchors used for the installation of mechanical, plumbing and electrical equipment may be designed and detailed on a plan prepared by an engineer licensed by the state of California. 0. When installed in concrete filled metal deck, HUS-EZ I axial spacing along the flute shall be greater than x hef or.5 x flute width, whichever value is larger.. Allowable stress design values listed in Table 8 of the attached ESR-027 shall not be used where seismic forces are resisted or where concrete will crack. DISCUSSION Technical modification adds static shear and seismic shear capacities to HUS-EZ I model screw anchors, and shear values for installation into concrete filled metal deck. The report is in compliance with the 204 City of Los Angeles Building Code. The approval is based on tests in accordance with ICC ES Acceptance Criteria for Mechanical Anchors in Concrete Elements (AC 9), dated February 2009, which incorporate requirements in ACI , for use in cracked and uncracked concrete; including optional suitability Test 2 and (AC 9, Table 4.2) for seismic tension and shear; and quality control documentation. This general approval will remain effective provided the Evaluation Report is maintained valid and unrevised with the issuing organization. Any revision to the report must be submitted to this Department for review with appropriate fee to continue the approval of the revised report. Addressee to whom this Research Report is issued is responsible for providing copies of it, complete with any attachments indicated, to architects, engineers and builders using items approved herein in design or construction which must be approved by Department of Building and Safety Engineers and Inspectors. RR Page 2 of

3 Hilti, Inc. Re: Hilti Kwik HUS-EZ (KH-EZ) Carbon Steel Screw Anchors For Use in Cracked and Uncracked Concrete. This general approval of an equivalent alternate to the Code is only valid where an engineer and/or inspector of this Department has determined that all conditions of this Approval have been met in the project in which it is to be used. QUAN NGHIEM, Chief Engineering Research Section 20 N. Figueroa St., Room 880 Los Angeles, CA 9002 Phone Fax RH RR25897 R0/28/4 908, 909 Attachment: ICC ES Report No. ESR-027 ( Pages) RR Page of

4 ICC-ES Evaluation Report (800) (562) ESR-027* Reissued December, 20 This report is subject to renewal December, 205. A Subsidiary of the International Code Council DIVISION: CONCRETE Section: Concrete Anchors DIVISION: METALS Section: Post-Installed Concrete Anchors REPORT HOLDER: HILTI, INC SOUTH 22 ND EAST AVENUE TULSA, OKLAHOMA 7446 (800) HiltiTechEng@us.hilti.com EVALUATION SUBJECT: HILTI KWIK HUS-EZ (KH-EZ) AND KWIK HUS-EZ I (KH-EZ I) CARBON STEEL SCREW ANCHORS FOR USE IN CRACKED AND UNCRACKED CONCRETE.0 EVALUATION SCOPE Compliance with the following codes: 202, 2009, 2006 and 200 International Building Code (IBC) 202, 2009, 2006 and 200 International Residential Code (IRC) Property evaluated: Structural 2.0 USES The Hilti KWIK HUS-EZ (KH-EZ) screw anchors are used to resist static, wind and seismic tension and shear loads in cracked and uncracked normal-weight and sand-lightweight concrete having a specified strength, f c, of 2,500 psi to 8,500 psi (7.2 MPa to 58.6 MPa); and cracked and uncracked normal-weight or sand-lightweight concrete over steel deck having a minimum specified compressive strength, f c, of,000 psi (20.7 MPa). The KWIK HUS-EZ I (KH-EZ I) screw anchors are used to resist static, wind and seismic tension and shear loads only in cracked and uncracked normal-weight and sandlightweight concrete having a specified strength, f c, of 2,500 psi to 8,500 psi (7.2 MPa to 58.6 MPa); and cracked and uncracked normal-weight or sand-lightweight concrete over steel deck having a minimum specified compressive strength, f c, of,000 psi (20.7 MPa). The Hilti KWIK HUS-EZ (KH-EZ) and KWIK HUS-EZ I (KH-EZ I) screw anchors are an alternative to anchors described in Sections 908 and 909 of the 202 IBC, Sections 9 and 92 of the 2009 and 2006 IBC and Sections 92 and 9 of the 200 IBC. The anchors may also be used where an engineered design is submitted in accordance with Section R0.. of the IRC..0 DESCRIPTION. KWIK HUS-EZ (KH-EZ): Hilti KWIK HUS-EZ (KH-EZ) anchors are comprised of a body with hex washer head. The anchor is manufactured from carbon steel and is heat-treated. It has a minimum inch-thick (8 μm) zinc coating in accordance with DIN EN ISO The anchoring system is available in a variety of lengths with nominal diameters of / 4 inch, / 8 inch, / 2 inch, 5 / 8 inch and / 4 inch (6.4 mm, 9.5 mm, 2.7 mm, 5.9 mm and 9. mm). A typical KWIK HUS-EZ (KH-EZ) is illustrated in Figure 2. The hex head is larger than the diameter of the anchor and is formed with serrations on the underside. The anchor body is formed with threads running most of the length of the anchor body. The anchor is installed in a predrilled hole with a powered impact wrench or torque wrench. The anchor threads cut into the concrete on the sides of the hole and interlock with the base material during installation..2 KWIK HUS-EZ I (KH-EZ I): The KWIK HUS-EZ I (KH-EZ I) anchors are comprised of a body with a long internally threaded ( / 4 inch or / 8 inch internal thread) hex washer head. The anchor is manufactured from carbon steel and is heat-treated. It has a minimum inch-thick (8 μm) zinc coating in accordance with DIN EN ISO The anchoring system is available in two lengths and a nominal diameter of / 4 inch (6.4 mm). A typical KWIK HUS-EZ I (KH-EZ I) is illustrated in Figure. The over-sized hex head is larger than the diameter of the anchor and is formed with serrations on the underside. The anchor body is formed with threads running most of the length of the anchor body. The anchor is installed in a predrilled hole with a powered impact wrench or torque wrench directly to the supporting member surface. The anchor threads cut into the concrete on the sides of the hole and interlock with the base material during installation. Shear design values in this report for the KWIK HUS EZ I (KH-EZ I) are for threaded inserts with F u equal to or greater than 25 ksi. For use with inserts with F u less than 25 ksi, the shear values are multiplied by the ratio of F u of insert and 25 ksi. *Revised March 204 ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, LLC, express or implied, as to any finding or other matter in this report, or as to any product covered by the report. Copyright 204 Page of 4 000

5 ESR-027 Most Widely Accepted and Trusted Page 2 of 4. Concrete: Normal-weight and sand-lightweight concrete must conform to Sections 90 and 905 of the IBC..4 Steel Deck Panels: Steel deck panels must comply with the configurations in Figure 5 and have a minimum base steel thickness of 0.05 inch (0.889 mm). Steel must comply with ASTM A65/A 65M SS Grade and have a minimum yield strength of,000 psi (228 MPa). 4.0 DESIGN AND INSTALLATION 4. Strength Design: 4.. General: Design strength of anchors complying with the 202 and 200 IBC as well as Section R0.. of the 202 and 200 IRC must be determined in accordance with ACI 8- Appendix D and this report. Design strength of anchors complying with the 2009 IBC and Section R0.. of the 2009 IRC must be determined in accordance with ACI 8-08 Appendix D and this report. Design strength of anchors complying with the 2006 IBC and 2006 IRC must be in accordance with ACI 8-05 Appendix D and this report. Design parameters provided in Table 2 through Table 7 of this report are based on the 202 IBC (ACI 8-) unless noted otherwise in Sections 4.. through The strength design of anchors must comply with ACI 8 D.4., except as required in ACI 8 D... Strength reduction factors,, as given in ACI 8- D.4., and noted in Tables and 4 of this report, must be used for load combinations calculated in accordance with Section of the IBC and Section 9.2 of ACI 8. Strength reduction factors,, as given in ACI 8- D.4.4 must be used for load combinations calculated in accordance with ACI 8 Appendix C. The value of f c used in the calculations must be limited to a maximum of 8,000 psi (55.2 MPa), in accordance with ACI 8- D..7. An example calculation in accordance with the 202 IBC is provided in Figure Requirements for Static Steel Strength in Tension, N sa : The nominal static steel strength, N sa, of a single anchor in tension calculated in accordance with ACI 8 D.5..2, is given in Table of this report. Strength reduction factors,, corresponding to brittle steel elements must be used. 4.. Requirements for Static Concrete Breakout Strength in Tension, N cb or N cbg : The nominal concrete breakout strength of a single anchor or a group of anchors in tension, N cb and N cbg, respectively, must be calculated in accordance with ACI 8 D.5.2, with modifications as described in this section. The basic concrete breakout strength of a single anchor in tension, N b, must be calculated in accordance with ACI 8 D.5.2.2, using the values of h ef and k cr as given in Tables and 7 of this report. The nominal concrete breakout strength in tension in regions where analysis indicates no cracking in accordance with ACI 8 D must be calculated with the value of k uncr as given in Table and with ψ c,n =.0. For anchors installed in the lower or upper flute of the soffit of sand-lightweight or normal-weight concrete-filled steel deck floor and roof assemblies, as shown in Figure 5, calculation of the concrete breakout strength in accordance with ACI 8 D.5.2 is not required Requirements for Static Pullout Strength in Tension, N p : The nominal pullout strength of a single anchor in accordance with ACI 8 D.5.. and D.5..2 in cracked and uncracked concrete, N p,cr, and N p,uncr, respectively, is given in Table. In lieu of ACI 8 D.5..6, ψ c, P =.0 for all design cases. In accordance with ACI 8 D.5., the nominal pullout strength in cracked concrete may be adjusted according to Eq.-:,,, (lb, psi) (Eq-),,. (N, MPa) where f c is the specified concrete compressive strength and n is the factor defining the influence of concrete compressive strength on the pullout strength. For the / 4 -inch-diameter anchor at 5 / 8 inches nominal embedment in cracked concrete, n is 0.. For all other cases, n is 0.5. In regions where analysis indicates no cracking in accordance with ACI 8 D.5..6, the nominal pullout strength in tension may be adjusted according to Eq-2:,,, (lb, psi) (Eq-2),,. (N, MPa) where f c is the specified concrete compressive strength and n is the factor defining the influence of concrete compressive strength on the pullout strength. For the / 4 -inch-diameter anchor at a nominal embedment of 5 / 8 inches in uncracked concrete, n is 0.. For all other cases, n is 0.5. Where values for N p,cr or N p,uncr are not provided in Table of this report, the pullout strength in tension need not be considered. The nominal pullout strength in tension of the anchors installed in the soffit of sand-lightweight or normal-weight concrete filled steel deck floor and roof assemblies, as shown in Figure 5, is provided in Table 5 for KWIK HUS-EZ and Table 6 for KWIK HUS-EZ I. In accordance with ACI 8 D.5..2, the nominal pullout strength in cracked concrete must be calculated according to Eq-, whereby the value of N p,deck,cr must be substituted for N p,cr and the value of,000 psi (20.7 MPa) must be substituted for the value of 2,500 psi (7.2 MPa) in the denominator. In regions where analysis indicates no cracking in accordance with ACI , the nominal strength in uncracked concrete must be calculated according to Eq-2, whereby the value of N p,deck,uncr must be substituted for N p,uncr and the value of,000 psi (20.7 MPa) must be substituted for the value of 2,500 psi (7.2 MPa) in the denominator Requirements for Static Steel Shear Capacity, V sa : The nominal steel strength in shear, V sa, of a single anchor in accordance with ACI 8 D.6..2 is given in Table 4 of this report and must be used in lieu of the values derived by calculation from ACI 8-, Eq. D-29. The strength reduction factor,, corresponding to brittle steel elements must be used. The nominal shear strength V sa,deck, of anchors installed in the soffit of sand-lightweight or normal-weight concrete filled steel deck floor and roof assemblies, as shown in Figure 5, is given in Table 5 for KWIK HUS-EZ and Table 6 for KWIK HUS-EZ I. Shear values for KWIK HUS-EZ I (KH-EZ I) are for threaded inserts with F u 25 ksi. For use with inserts with F u less than 25 ksi, the shear values are multiplied by the ratio of F u of insert and 25 ksi Requirements for Static Concrete Breakout Strength in Shear, V cb or V cbg : The nominal concrete breakout strength of a single anchor or group of anchors in shear, V cb or V cbg, respectively, must be calculated in accordance with ACI 8 D.6.2, with modifications as described in this section. The basic concrete breakout

6 ESR-027 Most Widely Accepted and Trusted Page of 4 strength in shear, V b, must be calculated in accordance with ACI 8 D using the values of l e and d a (d o ) given in Table 4. For anchors installed in the lower or upper flute of the soffit of sand-lightweight or normal-weight concrete-filled steel deck floor and roof assemblies, as shown in Figure 5, calculation of the concrete breakout strength in accordance with ACI 8 D.6.2 is not required Requirements for Static Concrete Pryout Strength in Shear, V cp or V cpg : The nominal concrete pryout strength of a single anchor or group of anchors, V cp or V cpg, respectively, must be calculated in accordance with ACI 8 D.6., using the coefficient for pryout strength, k cp provided in Table 4 and the value of N cb or N cbg as calculated in Section 4.. of this report. For anchors installed in the lower or upper flute of the soffit of sand-lightweight or normal-weight concrete-filled steel deck floor and roof assemblies, as shown in Figure 5, calculation of the concrete pryout strength in accordance with ACI 8 D.6. is not required Requirements for Seismic Design: General: For load combinations including seismic, the design must be in accordance with ACI 8 D... For the 202 IBC, Section shall be omitted. Modifications to ACI 8 D.. shall be applied under Section of the 2009 IBC, Section of the 2006 IBC, or the following, as applicable: CODE 200 IBC and 200 IRC ACI 8 SECTION D.. SEISMIC REGION Moderate or high seismic risk CODE EQUIVALENT DESIGNATION Seismic Design Categories C, D, E and F The nominal steel strength and nominal concrete breakout strength for anchors in tension, and the nominal concrete breakout strength and pryout strength for anchors in shear, must be calculated in accordance with ACI 8 D.5 and D.6, respectively, taking into account the corresponding values in Tables 2 through 7 of this report. The anchors comply with ACI 8 D. as brittle steel elements and must be designed in accordance with ACI 8- D...4 or D...5, ACI 8-08 D...5 or D...6 or ACI 8-05 D...5, as applicable Seismic Tension: The nominal steel strength and nominal concrete breakout strength for anchors in tension must be calculated in accordance with ACI 8 D.5. and D.5.2, as described in Sections 4..2 and 4.. of this report. In accordance with ACI 8 D.5..2, the appropriate value for pullout strength in tension for seismic loads, N p,eq or N p,deck,cr described in Tables and 5 for KWIK HUS-EZ, respectively; and in Tables and 6 for KWIK HUS-EZ I, respectively, must be used in lieu of N p. N p,eq or N p,deck,cr may be adjusted by calculations for concrete compressive strength in accordance with Eq- of this report in addition for concrete-filled steel deck floor and roof assemblies the value of,000 psi (20.7 MPa) must be substituted for the value of 2,500 psi (7.2 MPa) in the denominator. Where values for N p,eq are not provided in Table of this report, the pullout strength in tension for seismic loads need not be evaluated Seismic Shear: The nominal concrete breakout strength and pryout strength in shear must be calculated in accordance with ACI 8 D.6.2 and D.6., as described in Sections 4..6 and 4..7 of this report. In accordance with ACI 8 D.6..2, the appropriate value for nominal steel strength for seismic loads, V sa,eq or V sa,deck,eq described in Tables 4 and 5 for KWIK HUS-EZ, respectively; and in Tables 4 and 6 for KWIK HUS-EZ I, respectively, must be used in lieu of V sa Requirements for Interaction of Tensile and Shear Forces: For anchors or groups of anchors that are subject to the effects of combined tensile and shear forces, the design must be determined in accordance with ACI 8 D Requirements for Minimum Member Thickness, Minimum Anchor Spacing and Minimum Edge Distance: In lieu of ACI 8 D.8. and D.8., values of s min and c min, respectively, as given in Table 2 of this report must be used. In lieu of ACI 8 D.8.5, minimum member thicknesses, h min as given in Table 2 must be used. Additional combinations for minimum edge distance, c min, and minimum spacing distance, s min, may be derived by linear interpolation between the given boundary values as defined in Table 2 of this report. For anchors installed through the soffit of steel deck assemblies, the anchors must be installed in accordance with Figure 5 and shall have an axial spacing along the flute equal to the greater of h ef or.5 times the flute width. For ¼-inch and / 8 -inch KWIK HUS-EZ (KH-EZ) anchors installed on the top of steel deck assemblies, values of c ac,deck,top, s min,deck,top, and c min,deck,top, as given in Table 7 of this report must be used. 4.. Requirements for Critical Edge Distance, c ac : In applications where c < c ac and supplemental reinforcement to control splitting of the concrete is not present, the concrete breakout strength in tension for uncracked concrete, calculated in accordance with ACI 8 D.5.2, must be further multiplied by the factor Ψ cp,n as given by Eq-: Ψ cp,n = c (Eq-) c ac where the factor Ψ cp,n need not be taken as less than.5h ef. For all other cases, Ψ cp,n =.0. In lieu of using ACI c ac 8 D.8.6, values of c ac must comply with Tables and Sand-lightweight Concrete: For ACI 8- and ACI 8-08, when anchors are used in sand-lightweight concrete, the modification factor for concrete breakout, λ a or λ, respectively, must be taken as 0.6 in lieu of ACI 8- D..6 (202 IBC) or ACI 8-8 D..4 (2009 IBC). In addition, the pullout strength N p,uncr, N p,cr, and N p,eq must be multiplied by 0.6, as applicable. For ACI 8-05 the values N b, N p,uncr, N p,cr, N p,eq, and V b determined in accordance with this report must be multiplied by 0.60, in lieu of ACI 8 D..4. For anchors installed in the lower or upper flute of the soffit of sand-lightweight concrete-filled steel deck and floor and roof assemblies, this reduction is not required. 4.2 Allowable Stress Design (ASD): 4.2. General: Design values for use with allowable stress design load combinations calculated in accordance with Section 605. of the IBC must be established using the following equations: T allowable,asd = ϕn n α V allowable,asd = ϕv n α where: T allowable,asd = Allowable tension load (lb, N) V allowable ASD = Allowable shear load (lb, N) (Eq-4) (Eq-5)

7 ESR-027 Most Widely Accepted and Trusted Page 4 of 4 N n V n = Lowest design strength of an anchor or anchor group in tension as determined in accordance with ACI 8 Appendix D, Section 4. of this report and 2009 IBC Section or 2006 IBC Section , as applicable. = Lowest design strength of an anchor or anchor group in shear as determined in accordance with ACI 8 Appendix D, Section 4. of this report and 2009 IBC Section or 2006 IBC Section , as applicable. α = Conversion factor calculated as a weighted average of the load factors for the controlling load combination. In addition, α must include all applicable factors to account for nonductile failure modes and required over-strength. Limits on edge distance, anchor spacing and member thickness as given in Table 2 of this report must apply. An example of Allowable Stress Design tension values is given in Table 8 and Figure Interaction of Tensile and Shear Forces: The interaction must be calculated and consistent with ACI 8 D.7, as follows: For shear loads V applied 0.2V allowable,asd, the full allowable load in tension T allowable,asd shall be permitted. For tension loads T applied 0.2T allowable,asd, the full allowable load in shear V allowable,asd shall be permitted. For all other cases: T applied + T allowable,asd V applied V allowable,asd.2 (Eq-6) 4. Installation: Installation parameters are provided in Tables, 2 and 7 and Figures, 4A, 4B and 5. Anchor locations must comply with this report and plans and specifications approved by the code official. The Hilti KWIK HUS-EZ (KH-EZ) and KWIK HUS-EZ I (KH-EZ I) must be installed in accordance with the manufacturer s published instructions and this report. In case of conflict, this report governs. Anchors must be installed in holes drilled into concrete perpendicular to the surface using carbide-tipped masonry drill bits complying with ANSI B The nominal drill bit diameter must be equal to that of the anchor. The minimum drilled hole depth is given in Table 2. Prior to installation, dust and debris must be removed from the drilled hole using a hand pump, compressed air or a vacuum. The anchor must be installed into the predrilled hole using a powered impact wrench or installed with a torque wrench until the proper nominal embedment depth is obtained. The maximum impact wrench torque, T impact,max and maximum installation torque, T inst,max for the manual torque wrench must be in accordance with Table 2. The KWIK HUS-EZ (KH-EZ) and KWIK HUS-EZ I (KH-EZ I) may be loosened by a maximum of one turn and retightened with a torque wrench or powered impact wrench to facilitate fixture attachment or realignment. Complete removal and reinstallation of the anchor is not allowed. For installation in the soffit of concrete on steel deck assemblies, the hole diameter in the steel deck must not exceed the diameter of the hole in the concrete by more the / 8 inch (.2mm). For member thickness and edge distance restrictions for installations into the soffit of concrete on steel deck assemblies, see Figure 5. For installation of ¼-inch and / 8 -inch KWIK HUS-EZ (KH-EZ) anchors on the top of steel deck assemblies, see Table 7 for installation setting information. 4.4 Special Inspection: Periodic special inspection is required, in accordance with Section and Table 705. of the 202 IBC, Section of the 2009 IBC or Section 704. of the 2006 or 200 IBC, as applicable. The special inspector must be on the site periodically during anchor installation to verify anchor type, anchor dimensions, hole dimensions, concrete type, concrete compressive strength, drill bit type and size, hole dimensions, hole cleaning procedures, anchor spacing(s), edge distance(s), concrete member thickness, anchor embedment, installation torque, impact wrench power and adherence to the manufacturer s printed installation instructions and the conditions of this report (in case of conflict, this report governs). The special inspector must be present as often as required in accordance with the statement of special inspection. Under the IBC, additional requirements as set forth in Sections 705, 706 and 707 must be observed, where applicable. 5.0 CONDITIONS OF USE The Hilti KWIK HUS-EZ (KH-EZ) and KWIK HUS-EZ I (KH-EZ I) concrete anchors described in this report comply with, or are suitable alternatives to what is specified in, those codes listed in Section.0 of this report, subject to the following conditions: 5. The anchors must be installed in accordance with the manufacturer s published installation instructions and this report. In case of conflict, this report governs. 5.2 Anchor sizes, dimensions, and minimum embedment depths are as set forth in this report. 5. Anchors must be installed in accordance with Section 4. of this report in uncracked or cracked normalweight concrete and sand-lightweight concrete having a specified compressive strength, f c, of 2,500 psi to 8,500 psi (7.2 MPa to 58.6 MPa), and cracked and uncracked normal-weight or sand-lightweight concrete over metal deck having a minimum specified compressive strength, f c, of,000 psi (20.7 MPa). 5.4 The value of f c used for calculation purposes must not exceed 8,000 psi (55.2 MPa). 5.5 Strength design values must be established in accordance with Section 4. of this report. 5.6 Allowable stress design values must be established in accordance with Section 4.2 of this report. 5.7 Anchor spacing(s) and edge distance(s), and minimum member thickness, must comply with Table 2 and Figure 5 of this report. 5.8 Reported values for the KWIK HUS-EZ I (KH-EZ I) with an internally threaded hex washer head do not consider the steel insert element which must be verified by the design professional. Shear design values in this report for the KWIK HUS-EZ I (KH-EZ I) are for threaded inserts with F u equal to or greater than 25 ksi. For use with inserts with F u less than 25 ksi, the shear values are multiplied by the ratio of F u of insert and 25 ksi. 5.9 Prior to installation, calculations and details demonstrating compliance with this report must be submitted to the code official. The calculations and details must be prepared by a registered design professional where required by the statutes of the jurisdiction in which the project is to be constructed.

8 ESR-027 Most Widely Accepted and Trusted Page 5 of Since an ICC-ES acceptance criteria for evaluating data to determine the performance of anchors subjected to fatigue or shock loading is unavailable at this time, the use of these anchors under such conditions is beyond the scope of this report. 5. Anchors may be installed in regions of concrete where cracking has occurred or where analysis indicates cracking may occur (f t >f r ), subject to the conditions of this report. 5.2 Anchors may be used to resist short-term loading due to wind or seismic forces, subject to the conditions of this report. 5. Anchors are not permitted to support fire-resistancerated construction. Where not otherwise prohibited in the code, anchors are permitted for use with fireresistance-rated construction provided that at least one of the following conditions is fulfilled: Anchors are used to resist wind or seismic forces only. Anchors that support gravity load bearing structural elements are within a fire-resistance-rated envelope or a fire-resistance-rated membrane, are protected by approved fire-resistance-rated materials, or have been evaluated for resistance to fire exposure in accordance with recognized standards. Anchors are used to support nonstructural elements. 5.4 Anchors have been evaluated for reliability against brittle failure and found to be not significantly sensitive to stress-induced hydrogen embrittlement. 5.5 Use of carbon steel anchors is limited to dry, interior locations. 5.6 Special inspection must be provided in accordance with Sections KWIK HUS-EZ (KH-EZ) and KWIK HUS-EZ I (KH-EZ I) anchors are manufactured by Hilti AG, under a quality control program with inspections by ICC-ES. 6.0 EVIDENCE SUBMITTED Data in accordance with the ICC-ES Acceptance Criteria for Mechanical Anchors in Concrete Elements (AC9), dated March 202; and quality control documentation. 7.0 IDENTIFICATION The HILTI KWIK HUS-EZ (KH-EZ) and KWIK HUS-EZ I (KH-EZ I) anchors are identified by packaging with the manufacturer s name (Hilti, Inc.) and contact information, anchor name, anchor size, evaluation report number (ICC-ES ESR-027). The anchors with hex washer head have KH-EZ, HILTI, and anchor size and anchor length embossed on the anchor head. Identifications are visible after installation, for verification.

9 ESR-027 Most Widely Accepted and Trusted Page 6 of 4 TABLE KWIK HUS-EZ (KH-EZ) AND KWIK HUS-EZ I (KH-EZ I) PRODUCT INFORMATION Name and Size KH-EZ / 4 x 5 / 8 I / 4 KH-EZ / 4 x 5 / 8 I / 8 KH-EZ / 4 x2 / 2 I / 4 KH-EZ / 4 x2 / 2 I / 8 KH-EZ / 4 x 7 / 8 KH-EZ / 4 x2 5 / 8 KH-EZ / 4 x KH-EZ / 4 x / 2 KH-EZ / 4 x4 KH-EZ / 8 x 7 / 8 KH-EZ / 8 x2 / 8 KH-EZ / 8 x KH-EZ / 8 x / 2 KH-EZ / 8 x4 KH-EZ / 8 x5 KH-EZ / 2 x2 / 2 KH-EZ / 2 x KH-EZ / 2 x / 2 KH-EZ / 2 x4 KH-EZ / 2 x4 / 2 KH-EZ / 2 x5 KH-EZ / 2 x6 KH-EZ 5 / 8 x / 2 KH-EZ 5 / 8 x4 KH-EZ 5 / 8 x5 / 2 KH-EZ 5 / 8 x6 / 2 KH-EZ 5 / 8 x8 KH-EZ / 4 x4 / 2 KH-EZ / 4 x5 / 2 KH-EZ / 4 x7 KH-EZ / 4 x8 KH-EZ / 4 x9 For SI: inch = 25.4 mm. Diameter Total Length - under the anchor head (l anch ) Minimum Nominal Embedment (h nom ) / 4 ( / 4 UNC-20 Internal Thread Length -.75 ) 5 / 8 5 / 8 / 4 ( / 8 UNC-6 Internal Thread Length -.45 ) 5 / 8 5 / 8 / 4 ( / 4 UNC-20 Internal Thread Length -.75 ) 2 / 2 2 / 2 / 4 ( / 8 UNC-6 Internal Thread Length -.45 ) 2 / 2 2 / 2 / 4 7 / 8 5 / 8 / / 8 5 / 8 / 4 5 / 8 / 4 / 2 5 / 8 / / 8 / 8 7 / 8 5 / 8 / 8 2 / 8 5 / 8 / 8 2 / 2 / 8 / 2 2 / 2 / 8 4 / 4 / 8 5 / 4 / 2 2 / 2 2 / 4 / 2 2 / 4 / 2 / 2 / 2 4 / 2 4 / 2 / 2 5 / / 8 / 2 / 4 5 / 8 4 / 4 5 / 8 5 / 2 / 4 5 / 8 6 / 2 / 4 5 / 8 8 / 4 / 4 4 / 2 4 / 4 5 / 2 4 / / / 4 9 4

10 ESR-027 Most Widely Accepted and Trusted Page 7 of 4 FIGURE KWIK HUS EZ ANCHOR FIGURE 2 HILTI KWIK HUS EZ CONCRETE SCREW ANCHOR FIGURE HILTI KWIK HUS-EZ I ANCHOR FIGURE 4A INSTALLATION INSTRUCTIONS HILTI KWIK HUS EZ (KH-EZ) FIGURE 4B INSTALLATION INSTRUCTIONS - HILTI KWIK HUS EZ I (KH-EZ I)

11 ESR-027 Most Widely Accepted and Trusted Page 8 of 4 TABLE 2 KWIK HUS-EZ (KH-EZ) AND KWIK HUS-EZ I (KH-EZ I) INSTALLATION INFORMATION AND ANCHOR SPECIFICATION Nominal Anchor Diameter (inches) Characteristic Symbol Units / 4 (KH-EZ I) / 4 / 8 / 2 5 / 8 / 4 Style - - Internally Threaded Nominal Diameter d a (d o ) 5 in. / 4 / 8 / 2 5 / 8 / 4 Drill Bit Diameter d bit in. / 4 / 8 / 2 5 / 8 / 4 Minimum Baseplate Clearance Hole Diameter d h in. N/A 7 / 8 / 2 5 / 8 / 4 7 / 8 Maximum Installation Torque T inst,max 4 ft-lbf Maximum Impact Wrench Torque Rating T impact,max ft-lbf Minimum Nominal Embedment depth h nom in. 5 / 8 2 / 2 5 / 8 2 / 2 5 / 8 2 / 2 / 4 2 / 4 4 / 4 / / 4 Effective Embedment Depth h ef in Minimum Hole Depth h hole in / / 8 7 / 8 2 / 4 / / 8 / / 8 5 / 8 5 / 8 4 / / 8 Critical Edge Distance 2 c ac in Minimum Spacing at Critical Edge distance 2 s 8 min,cac in Minimum Edge Distance 2 c min 8 in Minimum Spacing Distance at Minimum Edge Distance 2 s 8 min in Minimum Concrete Thickness h min in Wrench socket size KH-EZ I Model Wrench socket size KH-EZ Model Max. height KH-EZ I Model / 4 Internal Thread / 8 Internal Thread in. / 8 Not Applicable / 2 - in. N/A / 4 Internal Thread / 8 Internal Thread in. 7 / 6 9 / 6 5 / 8 Not Applicable / 6 / 4 5 / 6 / 8 Max. height - in. N/A Effective tensile stress area Minimum specified ultimate strength A se (A se,n ) 5 in f uta 6 psi 25,000 06,975 20,00 2,540 90,80 8,600 (f ut ) For SI: inch = 25.4 mm, ft-lbf =.56 N-m, psi = 6.89 kpa, in 2 = 645 mm 2, lb/in = 0.75 N/mm. The data presented in this table is to be used in conjunction with the design criteria of ACI 8 Appendix D. 2 For installations through the soffit of steel deck into concrete (see Figure 5) anchors installed in the lower flute may be installed with a maximum inch offset in either direction from the center of the flute. Because of variability in measurement procedures, the published torque of an impact tool may not correlate properly with the above setting torques. Over-torquing can damage the anchor and/or reduce its holding capacity. 4 T inst,max applies to installations using a calibrated torque wrench. 5 The notation in parenthesis is for the 2006 IBC. 6 The notation in parenthesis is for the 200 IBC. 7 The KWIK HUS-EZ I (KH-EZ I) version is driven directly to the supporting member surface. 8 Additional combinations for minimum edge distance, c min, and minimum spacing distance, s min or s min,cac, may be derived by linear interpolation between the given boundary values.

12 ESR-027 Most Widely Accepted and Trusted Page 9 of 4 TABLE HILTI KWIK HUS-EZ (KH-EZ) and KWIK HUS-EZ I (KH-EZ I) TENSION STRENGTH DESIGN DATA,2,4,7 Characteristic Symbol Units Anchor Category, 2 or Style - - Nominal Embedment Depth Tension Resistance of Steel / 4 (KH-EZ I) / 4 Nominal Anchor Diameter(inches) Internally Threaded / 8 / 2 5 / 8 / 4 Standard Hex h nom in. 5 / 8 2 / 2 5 / 8 2 / 2 5 / 8 2 / 2 / 4 2 / 4 4 / 4 / / 4 Steel Strength in Tension (ACI 8 D.5.) 7 N sa lb. 5,660 9,200 0,5 8,20 24,20 2,0 Reduction Factor for Steel Strength,8 sa Effective Embedment Depth Critical Edge Distance Effectiveness Factor Uncracked Concrete Effectiveness Factor Cracked Concrete Concrete Breakout Strength in Tension (ACI 8 D.5.2) h ef in c ac in k uncr k cr - 7 Modification factor for cracked and Ψ c,n -.0 uncracked concrete 6 Reduction Factor for Concrete Breakout cb - Strength 2 Characteristic pullout strength, uncracked concrete (2,500psi) Characteristic pullout strength, cracked concrete (2500 psi) Pullout Strength in Tension (Non Seismic Applications) (ACI8 D.5.) N p,uncr lb.,05 6,9 2,48 5,05 6 2,48 5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N p,cr lb ,9, , N/A N/A N/A N/A N/A N/A N/A N/A N/A Reduction factor for pullout strength 2 p Characteristic Pullout Strength, Seismic (2,500 psi) Reduction Factor for Pullout Strength 2 (2,500 psi) Pullout Strength in Tension (Seismic Applications) (ACI 8 D.5.) N p,eq lb. 54 6,9, , N/A N/A N/A N/A N/A N/A N/A N/A N/A eq Axial Stiffness in Service Load Range Uncracked Concrete β uncr lb/in. 760,000 Cracked Concrete β cr 29,000 For SI: inch = 25.4 mm, ft-lbf =.56 N-m, psi = 6.89 kpa, in 2 = 645 mm 2, lb/in = 0.75 N/mm. The data in this table is intended for use with the design provisions of ACI 8 Appendix D; for anchors resisting seismic load combinations the additional requirements of ACI D.. shall apply. 2 Values of in this table apply when the load combinations for ACI 8 Section 9.2, IBC Section are used and the requirements of ACI 8- D.4. for Condition B are met. For situations where reinforcement meets the requirements of Condition A, ACI 8- D.4. or D.4.4 provides the appropriate factor, as applicable. If the load combinations of ACI 8 Appendix C are used, the appropriate value of must be determined in accordance with ACI 8- D In this report, N/A denotes that pullout resistance does not govern and does not need to be considered. 5 The characteristic pullout resistance for concrete compressive strengths greater than 2,500 psi may be increased by multiplying the value in the table by (f c /2,500) 0.5 for psi or (f c /7.2) 0.5 for MPa. 6 The characteristic pullout resistance for concrete compressive strengths greater than 2,500 psi may be increased by multiplying the value in the table by (f c /2,500) 0. for psi or (f c /7.2) 0. for MPa. 7 For sand-lightweight concrete, calculate values according to Section 4..2 of this report. 8 The KWIK HUS-EZ (KH-EZ) and KWIK HUS-EZ I (KH-EZ I) is considered a brittle steel element as defined by ACI 8 D..

13 ESR-027 Most Widely Accepted and Trusted Page 0 of 4 TABLE 4 HILTI KWIK HUS-EZ (KH-EZ) and KWIK HUS-EZ I (KH-EZ I) SHEAR STRENGTH DESIGN DATA,8 Nominal Anchor Diameter(inches) Characteristic Symbol Units / 4 / (KH-EZ I) 4 / 8 / 2 Anchor Category,2 or 5 / 8 / 4 Embedment Depth h nom in. 5 / 8 2 / 2 5 / 8 2 / 2 5 / 8 2 / 2 5 / 8 2 / 2 / 4 2 / 4 4 / 4 / / 4 Internal Thread Diameter in. / 4 / 8 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Steel Strength in Shear (ACI 8 D.6.) 5,6 Shear Resistance of Steel - Static 4 V sa lb.,60 8, 5 8,548,669 5,85 9,245,22 6,662 Shear Resistance of Steel - Seismic 4 V sa,eq lb ,20 8,9,669, 5,547 6,7,556 Reduction Factor for Steel Strength sa Concrete Breakout Strength in Shear (ACI 8 D.6.2) Nominal Diameter d a [d o ] 7 in Load Bearing Length of Anchor 4 l e in Reduction Factor for Concrete Breakout Strength 2 cb Concrete Pryout Strength in Shear (ACI 8 D.6.) Coefficient for Pryout Strength k cp Reduction Factor for Pryout Strength 2 cp For SI: inch = 25.4 mm, ft-lbf =.56 N-m, psi = 6.89 kpa, in 2 = 645 mm 2, lb/in = 0.75 N/mm. The data in this table is intended for use with the design provisions of ACI 8 Appendix D 2 Values of in this table apply when the load combinations for ACI 8 Section 9.2, IBC Section are used and the requirements of ACI 8- D.4. for Condition B are met. For situations where reinforcement meets the requirements of Condition A, ACI 8- D.4. or D.4.4 provides the appropriate factor, as applicable. If the load combinations of ACI 8 Appendix C are used, the appropriate value of must be determined in accordance with ACI 8- D For 200 IBC code basis replace l e with l, V sa with V s, and V sa,eq with V sa,seis. 5 Reported values for steel strength in shear are based on test results per ACI 55.2, Section 9.4 and must be used for design in lieu of calculated results using equation D-29 of ACI The KWIK HUS-EZ (KH-EZ) is considered a brittle steel element as defined by ACI 8 D.. 7 The notation in brackets is for the 2006 IBC. 8 Values are for threaded rod or insert with F u 25 ksi. For use with inserts with Fu less than 25 ksi multiply the shear values by the ratio of Fu of insert and 25 ksi.

14 ESR-027 Most Widely Accepted and Trusted Page of 4 TABLE 5 HILTI KWIK HUS-EZ (KH-EZ) TENSION AND SHEAR DESIGN DATA FOR INSTALLATION IN THE UNDERSIDE OF CONCRETE-FILLED PROFILE STEEL DECK ASSEMBLIES,5,6,7 Lower Flute Upper Flute Characteristic Symbol Units Anchor Diameter / 4 / 8 / 2 5 / 8 / 4 / 4 / 8 / 2 Style - - Embedment h nom in. 5 / 8 2 / 2 5 / 8 2 / 2 / 4 2 / 4 4 / 4 / / 8 2 / 2 5 / 8 2 / 2 2 / 4 Minimum Hole Depth h hole in / 8 7 / 8 2 / 4 / / 8 / / 8 5 / 8 5 / 8 4 / / 8 7 / / / 8 Effective Embedment Depth h ef in Pullout Resistance, (uncracked concrete) 2 N p,deck,uncr lb.,20,875,00 2,240,920,05,060 5,60 4,80 9,495 4,80,490,960,490 2,920,95 Pullout Resistance (cracked concrete and N p,deck,cr lb ,590 2, ,90,75 2,60 5,980 2, ,85 2, seismic loads) Steel Strength in Shear 4 Steel Strength in Shear, Seismic V 8 sa,deck lb.,205 2,20,50,50,605,605 2,920,590,470 4,90,760,205,265,670 6,090 7,850 V sa,deck,eq lb. 905, ,65 965,750 2,55 2,080 2,55 2,60,080 2,940,670,650 4,70 For SI: inch = 25.4 mm, ft-lbf =.56 N-m, psi = 6.89 kpa, in 2 = 645 mm 2, lb/in = 0.75 N/mm. Installation must comply with Sections 4..0 and 4. and Figure 5 of this report. 2 The values listed must be used in accordance with Section 4..4 of this report. The values listed must be used in accordance with Section 4..4 and of this report. 4 The values listed must be used in accordance with Section 4..5 and of this report. 5 The values for p in tension can be found in Table of this report and the values for sa in shear can be found in Table 4 of this report. 6 For the / 4 -inch-diameter (KH-EZ) at 2 / 2- inch nominal embedment and the / 8 -inch- through / 4 -inch-diameter anchors the characteristic pullout resistance for concrete compressive strengths greater than,000 psi may be increased by multiplying the value in the table by (f c /,000) /2 for psi or (f c /20.7) /2 for MPa. 7 For the / 4 -inch-diameter anchors (KH-EZ) at 5 / 8 -inch nominal embedment characteristic pullout resistance for concrete compressive strengths greater than,000 psi may be increased by multiplying the value in the table by (f c /2,500) 0. for psi or (f c /7.2) 0. for MPa. TABLE 6 KWIK HUS-EZ I (KH-EZ I) TENSION AND SHEAR DESIGN DATA FOR INSTALLATION IN THE UNDERSIDE OF CONCRETE- FILLED PROFILE STEEL DECK ASSEMBLIES,6,7 Characteristic Symbol Units Lower Flute Upper Flute Style - - Internally Threaded Embedment h nom in. 5 / 8 2 / 2 5 / 8 2 / 2 5 / 8 2 / 2 5 / 8 2 / 2 Minimum Hole Depth h hole in / / / / 8 Internal Thread Diameter - in. / 4 / 8 / 4 / 8 Effective Embedment Depth h ef in Pullout Resistance, (uncracked N p,deck,uncr lb.,20,875,20,875,490,960,490,960 concrete) 2 Pullout Resistance (cracked concrete N p,deck,cr lb and seismic loads) Steel Strength in Shear 4 V 8 sa,deck lb.,05,525,05,525 Steel Strength in Shear, Seismic 8 V sa,deck,eq lb. 445, ,295 For SI: inch = 25.4 mm, ft-lbf =.56 N-m, psi = 6.89 kpa, in 2 = 645 mm 2, lb/in = 0.75 N/mm. Installation must comply with Sections 4..0 and 4. and Figure of this report. 2 The values listed must be used in accordance with Section 4..4 of this report. The values listed must be used in accordance with Section 4..4 and of this report. 4 The values listed must be used in accordance with Section 4..5 and of this report. 5 The values for p in tension can be found in Table of this report and the values for sa in shear can be found in Table 4 of this report. 6 For the / 4 -inch-diameter (KH-EZ I) at 2- / 2 inch nominal embedment and the / 8 -inch- through / 4 -inch-diameter anchors the characteristic pullout resistance for concrete compressive strengths greater than,000 psi may be increased by multiplying the value in the table by (f c /,000) /2 for psi or (f c /20.7) /2 for MPa. 7 For the / 4 -inch-diameter anchors (KH-EZ I) at 5 / 8 -inch nominal embedment characteristic pullout resistance for concrete compressive strengths greater than,000 psi may be increased by multiplying the value in the table by (f c /2,500) 0. for psi or (f c /7.2) 0. for MPa. 8 Values for the KWIK HUS-EZ I (KH-EZ I) are for threaded rod or insert with F u 25 ksi. For use with inserts with Fu less than 25 ksi multiply the shear values by the ratio of Fu of insert and 25 ksi.

15 ESR-027 Most Widely Accepted and Trusted Page 2 of 4 TABLE 7 HILTI KWIK HUS EZ (KH-EZ) SETTING INFORMATION FOR INSTALLATION ON THE TOP OF CONCRETE-FILLED PROFILE STEEL DECK ASSEMBLIES.,2,,4,5,6,7 DESIGN Nominal Anchor Diameter Symbol Units INFORMATION / 4 / 8 Effective Embedment Depth h ef in..8. Minimum concrete thickness h min,deck in. 2 / 2 2 / 2 Critical edge distance c ac,deck,top in. 4 Minimum edge distance c min,deck,top in. / 4 / 4 Minimum spacing s min,deck,top in. For SI: inch = 25.4 mm. Installation must comply with Sections 4..0 and 4. of this report. 2 For all other anchor diameters and embedment depths refer to Table 2 for values of h min,c min and s min. Design capacity shall be based on calculations according to values in Tables and 4 of this report. 4 Applicable for 2½-inch h min,deck < / 4 -inch. For h min,deck / 4 -inch, use setting information in Tables and 4 of this report. 5 Minimum concrete thickness (h min,deck ) refers to concrete thickness above upper flute. 6 Minimum flute depth (distance from top of flute to bottom of flute) is inches. 7 Steel deck thickness shall be minimum 20 gauge. FIGURE 5 INSTALLATION OF KWIK HUS-EZ (KH-EZ) AND KWIK HUS-EZ I (KH-EZ I) IN SOFFIT OF CONCRETE OVER STEEL DECK FLOOR AND ROOF ASSEMBLIES Anchors may be placed in the upper or lower flute of the steel deck profile provided the minimum hole clearance is satisfied. Anchors in the lower flute may be installed with a maximum -inch offset in either direction from the center of the flute. The offset distance may be increased proportionally for profiles with lower flute widths greater than those shown provided the minimum lower flute edge distance is also satisfied.

16 ESR-027 Most Widely Accepted and Trusted Page of 4 TABLE 8 HILTI KWIK HUS-EZ (KH-EZ) AND KWIK HUS-EZ I (KH-EZ I) ALLOWABLE STRESS DESIGN VALUES, 2,, 4, 5, 6, 7, 8, 9 FOR ILLUSTRATIVE PURPOSES Nominal Anchor Diameter Nominal Embedment Depth, h nom Effective Embedment Depth, h ef Allowable Tension Load [in.] [in.] [in.] [lbs] / 4 / 8 / 2 5 / 8 / 4 For SI: inch = 25.4 mm, lbf = 4.45 N. 5 / / 2.92,0 5 / / 2.86,4 / ,077 2 / 4.52, 2.6,882 4 / 4.22,426 / , , ,96 6 / ,05 Single anchor with static tension load only. 2 Concrete determined to remain uncracked for the life of the anchorage. Load combinations are taken from ACI 8 Section 9.2 (no seismic loading). 4 40% dead load and 60% live load, controlling load combination.2d +.6L. 5 Calculation of weighted average for conversion factor α =.2(0.4) +.6(0.6) = f c = 2,500 psi (normal weight concrete). 7 c a = c a2 c ac. 8 h h min. 9 Values are for Condition B where supplementary reinforcement in accordance with ACI 8- D.4. is not provided.

17 ESR-027 Most Widely Accepted and Trusted Page 4 of 4 Given: Two / 2 diameter KH-EZ with static tension load h nom = 4.25 inches h ef =.22 inches Normal Weight Concrete: f c =,000 psi No supplementary reinforcement (Cond. B) No eccentricity, 60% live load, 40% dead load. Assume cracked concrete since no other information is available. h min =6.75 in. c min =.75 in. s min = in. Needed: Allowable stress design (ASD) tension capacity Calculation per ACI 8- and this report Code Reference ESR Reference Step : Calculate steel capacity: ϕn s =nϕn sa = ,20 =2,556 lbs. D.5..2 Table Step 2: Verify minimum member thickness, spacing and edge distance: h min =6.75 in. 2 in. ok c min =.75 in. 4 in. ok s min = in. 6 in. ok D.8 Table 2 Step : Calculate concrete breakout strength of anchor group in tension: N cbg = A Nc Ψ A ec,n Ψ ed,n Ψ c,n Ψ cp,n N b Nco D Step a: Calculate A Nc and A Nco : A Nc =.5h ef +4 h ef +6 = =8. in. 2 D.5.2. Table A Nco =9(h ef ) 2 =9(.22) 2 =9.2 in. 2 Step b: Determine Ψ ec,n e n ' =0 Ψ ec,n =.0 D Step c: Calculate Ψ ed,n Ψ ed,n = =0.948 D Table 4.8 Step d: Determine Ψ cp,n Ψ cp,n =.0 because concrete is cracked. D Step e: Calculate N b : N b =k cr f c ' h ef.5 =7(.0),000(.22).5 =5,80 lbs D Table (λ a =.0 for normal weight concrete) Step f: Calculate : ϕn cbg = ,80 =4,94 lbs D.5.2. D.4. (c) 4.. Table Step 4: Check Pullout Strength per Table does not control ---- Table Step 5: Controlling Strength: Lesser of nϕn sa and ϕn cbg 4,94 lbs D.4..2 Table Step 6: Convert to ASD based on.6 (0.60)+.2(0.40)=.44 60% Live Load and 40% Dead Load: T allowable,asd = 4,94.44 =,42 lbs FIGURE 6 EXAMPLE CALCULATION