ICC ESR-1546 for HDA Undercut Anchors

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Table Of Contents

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ICC-ES Evaluation Report

ESR-1546

Reissued March 2020

Revised March 2021

This report is subject to renewal March 2022.

www.icc-es.org | (800) 423-6587 | (562) 699-0543 A Subsidiary of the International Code Council

DIVISION: 03 00 00—CONCRETE

Section: 03 16 00—Concrete Anchors

DIVISION: 05 00 00—METALS

Section: 05 05 19—Post-Installed Concrete Anchors

REPORT HOLDER:

HILTI, INC.

EVALUATION SUBJECT:

HILTI HDA CARBON STEEL AND STAINLESS STEEL

UNDERCUT ANCHORS FOR CRACKED AND

UNCRACKED CONCRETE

1.0 EVALUATION SCOPE

Compliance with the following codes:

 2018, 2015, 2012 and 2009 International Building

Code

(IBC)

 2018, 2015, 2012 and 2009 International Residential

Code

(IRC)

 2013 Abu Dhabi International Building Code (ADIBC)

†

The ADIBC is based on the 2009 IBC. 2009 IBC code sections referenced

in this report are the same sections in the ADIBC.

For evaluation for compliance with codes adopted by the

Los Angeles Department of Building and Safety (LADBS),

see ESR-1546 LABC and LARC Supplement.

Property evaluated:

Structural

2.0 USES

The Hilti HDA Undercut Anchor is used to resist static,

wind, and seismic tension and shear loads in cracked and

uncracked normal-weight and lightweight concrete having

a specified compressive strength, f′

, of 2,500 psi to

8,500 psi (17.2 MPa to 58.6 MPa) [minimum of 24 MPa is

required under ADIBC Appendix L, Section 5.1.1]. The

anchoring system complies with anchors as described in

Section 1901.3 of the 2018 and 2015 IBC, Section 1909 of

the 2012 IBC, and Section 1912 of the 2009 IBC. The

anchoring system is an alternative to cast-in-place anchors

described in Section 1901.3 of the 2018 and 2015 IBC,

Section 1908 of the 2012 IBC, and Section 1911 of the

2009 IBC. The anchors may also be used where an

engineered design is submitted in accordance with Section

R301.1.3 of the IRC.

3.0 DESCRIPTION

3.1 HDA:

The Hilti HDA Carbon Steel and Stainless Steel Undercut

Anchors, designated as the HDA and HDA-R, respectively,

are self-undercutting undercut anchors. The HDA and

HDA-R are each comprised of six components as shown in

Figures 1 and 2 of this report. The HDA and HDA-R are

available in pre-set (HDA-P and HDA-PR) and through-set

(HDA-T and HDA-TR) configurations as illustrated in

Figures 1 and 2 of this report.

All carbon steel parts receive a minimum 0.0002-inch-

thick (5 μm) galvanized zinc coating equivalent to

ASTM B633, Type I. The HDA-R is fabricated from

stainless steel with corrosion resistance equivalent to AISI

316 or AISI 316Ti. Dimensions and installation criteria are

set forth in Tables 1 through 4 of this report. This anchor is

manufactured using metric units. Strength design

information is provided in Tables 5 and 6 of this report.

3.2 Carbon Steel HDA:

3.2.1 Cone Bolt: The cone bolt for the M10 through M16

sizes is cold-formed from carbon steel. The cone bolt for

the M20 size is machined from carbon steel. The cone bolt

is equipped on one end with rolled threads terminating in a

dog-point. A parabolic cone is formed on the other end. A

gap is provided in the thread for a painted red setting mark

(used for visual setting control). This mark becomes visible

only when complete installation of the anchor has been

achieved. As packaged, the dog-point end of the rod is

equipped with a removable clear plastic cap to protect the

thread during the setting process. An alphabetic length

code as listed in Table 1 of this report is stamped and/or

printed on the end of the rod to permit determination of the

nominal embedment depth of the installed anchor. To

prevent disassembly and possible improper installation of

the anchor, the cone bolt is locked into the sleeve by

means of an indentation in the sleeve.

3.2.2 Sleeve: The sleeve is machined from precision

steel tubing. At the installed end of the anchor, the sleeve

is equipped with six hinged bearing elements in a radial

array. Two diametrically opposed elements are equipped

with brazed tungsten carbide tips to facilitate the

undercutting process during setting of the anchor. In the

fully installed position, the bearing elements rest on the

parabolic curve of the cone and bear on a form-fit undercut

in the concrete. The opposite end of the sleeve is equipped

with two D-shaped slots to engage the setting tool.

Summary of content (16 pages)

PAGE 1
ICC-ES Evaluation Report ESR-1546 Reissued March 2020 Revised March 2021 This report is subject to renewal March 2022. www.icc-es.org | (800) 423-6587 | (562) 699-0543 DIVISION: 03 00 00—CONCRETE Section: 03 16 00—Concrete Anchors 3.0 DESCRIPTION 3.1 HDA: DIVISION: 05 00 00—METALS Section: 05 05 19—Post-Installed Concrete Anchors REPORT HOLDER: HILTI, INC. EVALUATION SUBJECT: HILTI HDA CARBON STEEL AND STAINLESS STEEL UNDERCUT ANCHORS FOR CRACKED AND UNCRACKED CONCRETE 1.
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ESR-1546 | Most Widely Accepted and Trusted Page 2 of 16 3.2.3 Washer: The M10 through M16 sizes are equipped with spring washers. The M20 size is equipped with a washer fabricated from galvanized carbon steel. The value of f′c used in the calculations must be limited to 8,000 psi (55.2 MPa), maximum, in accordance with ACI 318-14 17.2.7 or ACI 318-11 D.3.7, as applicable. 3.2.
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ESR-1546 | Most Widely Accepted and Trusted Page 3 of 16 4.1.8 Requirements for Seismic Design: For load combinations including seismic, the design must be performed in accordance with ACI 318-14 17.2.3 or ACI 318-11 D.3.3, as applicable. Modifications to ACI 31814 17.2.3 shall be applied under Section 1905.1.8 of the 2018 and 2015 IBC. For the 2012 IBC, Section 1905.1.9 shall be omitted. Modifications to ACI 318-08 D.3.3 shall be applied under Section 1908.1.9 of the 2009 IBC, as applicable.
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ESR-1546 | Most Widely Accepted and Trusted Page 4 of 16 specified in, those codes listed in Section 1.0 of this report, subject to the following conditions: 5.1 Anchor sizes, dimensions and minimum embedment depths are as set forth in the tables of this report. 5.2 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.
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ESR-1546 | Most Widely Accepted and Trusted Page 5 of 16 FIGURE 1—PRE-SETTING ANCHOR HDA-P AND HDA-PR (PRE-POSITIONING) FIGURE 2—THROUGH-FASTENING ANCHOR HDA-T AND HDA-TR (POST-POSITIONING) TABLE 1—ANCHOR DIMENSIONAL CHARACTERISTICS (mm) tfix1 [mm] min-max lB [mm] Length code letter lS [mm] lk [mm] SW dS1 [mm] dS2 [mm] dS3 [mm] dC [mm] dB [mm] HDA-P(R) M10x100/20 0-20 150 I 100 - 17 19 16.8 18.5 19.5 10 HDA-T(R) M10x100/20 10-20 150 I 120 17 17 19 16.8 18.5 19.
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ESR-1546 | Most Widely Accepted and Trusted Page 6 of 16 Pre-setting anchor HDA-P and HDA-PR (Prepositioning) Through-fastening anchor HDA-T and HDA-TR (Postpositioning) FIGURE 3—HDA DIMENSIONS TABLE 2—CHARACTERISTIC VALUES OF ANCHORS AND INSTALLATION1,2,3 M10 HDA M10 to M20 and HDA-R M10 to M16 Nominal drill bit diameter1 dbit Minimum hole depth1,2 hhole Maximum clearance hole diameter in fastened part dh Min.
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ESR-1546 | Most Widely Accepted and Trusted Page 7 of 16 TABLE 4A—REQUIRED HAMMER DRILLS FOR SETTING Hilti hammer drill bit connection type TE-C connection (SDS Plus) TE-Y connection (SDS Max) M10 and M12 M16 Tool Setting time TE 251 10 – 20 sec. (max. 60 sec.) TE 30-A 10 – 30 sec. (max. 60 sec.) TE 40 10 – 20 sec. (max. 30 sec.) TE 562,3 M20 Tool Setting time Tool Setting time - - - - 10 – 20 sec. (max. 60 sec.) TE 705 15 – 30 sec. (max. 60 sec.) TE 703 20 – 30 sec. (max.
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ESR-1546 | Most Widely Accepted and Trusted Page 8 of 16 TABLE 4C—STOP DRILL BIT DIMENSIONS Marking Hilti C/Y da-HDA lS (K) Stop drill bit TE-C/Y-HDA-B d0 x lS Working length t [mm] Connection end TE- Nominal drilling diameter da [mm] HDA lS (K) TE-C-HDA-B 20x100 107 C 20 HDA 100 TE-Y-HDA-B 20x100 107 Y 20 HDA 100 TE-C-HDA-B 20x120 127 C 20 HDA 120 TE-Y-HDA-B 20x120 127 Y 20 HDA 120 TE-Y-HDA-B 20x180 187 Y 20 HDA 180 TE-C-HDA-B 22x125 133 C 22 HDA 125 K TE-Y-HDA-B 22x125
PAGE 9
ESR-1546 | Most Widely Accepted and Trusted 1 Drill a hole to the required depth using a stop drill bit matched to the anchor. Refer to TABLE 4B of this report. 2 Remove the drilling debris from the hole using a vacuum, compressed air or a hand air pump. 3 The anchor is placed to the bottom of the hole by hand. Do not strike with a hammer. Do not remove the plastic cap. This cap protects the threading during installation. 4 Select the HDA setting tool specified in TABLE 4B of this report.
PAGE 10
ESR-1546 | Most Widely Accepted and Trusted 1 Drill a hole to the required depth using a stop drill bit matched to the anchor. Refer to TABLE 4B of this report. Position fixture so that the fixture bears fully on the concrete surface without a gap between the fixture and concrete, and so that the fixture hole is centered over the drilled hole in the concrete. 2 Remove the drilling debris from the hole using a vacuum, compressed air or a hand air pump.
PAGE 11
ESR-1546 | Most Widely Accepted and Trusted Page 11 of 16 TABLE 5—DESIGN INFORMATION, HILTI HDA UNDERCUT ANCHORS Nominal anchor diameter Design Parameter Symbol Units M10 HDA mm (in.) HDA 19 (0.75) M16 HDA-R HDA 21 (0.83) M20 HDA-R 29 (1.14) HDA 35 (1.38) Anchor O.D. da Effective minimum embedment depth1 hef,min mm 100 125 190 250 l e10 (in.) (3.94) (4.92) (7.48) (9.84) Minimum edge distance cmin Minimum anchor spacing smin Critical edge distance9 cac - See Section 4.1.
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ESR-1546 | Most Widely Accepted and Trusted Page 12 of 16 TABLE 6—DESIGN INFORMATION – STEEL STRENGTH IN SHEAR, HDA-T/TR Anchor Designation HDA-T M10x100 Thickness of fastened part(s), tfix Steel Strength in Shear Static, Vsa Steel Strength in Shear, Seismic1, Vsa,eq (mm) (in.
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ESR-1546 | Most Widely Accepted and Trusted Page 13 of 16 TABLE 7—EXAMPLE ALLOWABLE STRESS DESIGN VALUES FOR ILLUSTRATIVE PURPOSES Nominal anchor diameter Effective embedment depth f’c kuncr α ϕ Nn Allowable tension load ϕNn/α da hef (mm) (in.) (psi) (-) (-) (-) (lb) (lb) M10 3.94 2,500 30 1.48 0.65 11,718 5,146 M12 4.92 2,500 30 1.48 0.65 16,376 7,192* M16 7.48 2,500 30 1.48 0.65 30,688 13,478 M20 9.84 2,500 30 1.48 0.65 46,318 20,342 For SI: 1 lb = 4.
PAGE 14
ESR-1546 | Most Widely Accepted and Trusted Page 14 of 16 Given (2) HDA-P M10 anchors static tension load hef = 3.94 in. (100 mm) f ’c = 3,000 psi Assume 1. uncracked concrete 2. ACI 318-14 17.3.3(c) or ACI 318-11 D.4.3(c), Condition B No supplementary reinforcing Calculate Controlling design strength in tension Calculation per ACI 318-14 Chapter 17, ACI 318-11 Appendix D and this report. ACI 318-14 Ref. ACI 318-11 Ref. Report Ref. 17.4.1.2 D.5.1.2 Table 5 17.3.3(a) D.4.3(a) Table 5 17.4.2.1 D.
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ICC-ES Evaluation Report ESR-1546 LABC and LARC Supplement Reissued March 2020 Revised March 2021 This report is subject to renewal March 2022. www.icc-es.org | (800) 423-6587 | (562) 699-0543 A Subsidiary of the International Code Council ® DIVISION: 03 00 00—CONCRETE Section: 03 16 00—Concrete Anchors DIVISION: 05 00 00—METALS Section: 05 05 19—Post-Installed Concrete Anchors REPORT HOLDER: HILTI, INC.
PAGE 16
ICC-ES Evaluation Report ESR-1546 FBC Supplement Reissued March 2020 Revised March 2021 This report is subject to renewal March 2022. www.icc-es.org | (800) 423-6587 | (562) 699-0543 A Subsidiary of the International Code Council ® DIVISION: 03 00 00—CONCRETE Section: 03 16 00—Concrete Anchors DIVISION: 05 00 00—METALS Section: 05 05 19—Post-Installed Concrete Anchors REPORT HOLDER: HILTI, INC.