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ESR-4143 I Most Widely Accepted and Trusted Page 18 of 82 Page 3 of 20
<br />Vt = Allowable service shear load (Ibf or kN).
<br />n = 5/3 for the 3/8- and 1/2-inch-diameter steel threaded
<br />rods, No. 3 and No. 4 reinforcing bars, and 3/a- and
<br />1/2-inch-diameter Hilti HIS steel internally threaded
<br />inserts installed in the face of grout filled concrete
<br />masonry.
<br />n = 1 for the 5/a- and 3/4-inch-diameter steel threaded rods
<br />and No. 5 and No. 6 reinforcing bars installed in the
<br />face of grout filled concrete masonry, and all
<br />diameters of threaded rod and reinforcing bar
<br />installed in the top of grout filled concrete masonry,
<br />and all threaded rods and inserts in hollow
<br />(ungrouted) concrete masonry, and brick masonry.
<br />4.1.3 Design of Threaded Rods and Reinforcing Bars
<br />Installed in the Face of Fully Grouted CMU Walls:
<br />Allowable tension and shear load values for 3/8- 1/2- 1/2-
<br />and 3/4-inch-diameter (9.5, 12.7, 15.9, and 19.1 mm) steel
<br />threaded rods and No. 3, 4, 5, and 6 reinforcing bars
<br />installed in the face of grout -filled CMU walls are reported in
<br />Tables 3A and 313. The allowable tension and shear loads
<br />are for anchors installed in any location in the face of the
<br />grout -filled CMU walls (cell, web, joints), and resisting static,
<br />wind, or earthquake loads. Critical and minimum spacing
<br />and edge distances, with appropriate reduction factors, are
<br />given in Tables 3A and 3B and shown in Figure 2.
<br />4.1.4 Design of Threaded Rods and Reinforcing Bars
<br />Installed in the Top or Side of Fully Grouted CMU Walls:
<br />Allowable tension and shear load values for 1/2-,
<br />5/8- and 3/4-inch-diameter (12.7 mm, 15.9 mm, and
<br />19.1 mm) steel threaded rods and No. 4 and No. 5
<br />reinforcing bars installed in the top or side of grout -filled
<br />CMU walls and resisting static, wind, or earthquake loads
<br />are reported in Table 5A through Table 5D. Minimum edge
<br />and end distances are noted in Table 5A through Table 5D
<br />and shown in Figures 3 and 4.
<br />4.1.5 Design of HIS-N and HIS -RN Inserts Installed in
<br />the Face of Fully Grouted CMU Walls: Allowable tension
<br />and shear load values for 3/8-inch and 5/8-inch (9.5 and 12.7
<br />mm) HIS-N and HIS -RN internally threaded inserts installed
<br />in the face of fully grouted CMU walls are reported in Tables
<br />4A and 4B. The allowable tension and shear loads are for
<br />HIS-(R)N inserts installed in any location in the face of the
<br />fully grouted CMU walls (cell, web, joints), and resisting
<br />static and wind load applications only. Use of these anchors
<br />to resist earthquake loads is outside the scope of this report.
<br />Critical and minimum spacing and edge distances, with
<br />appropriate reduction factors, are also given in Tables 4A
<br />and 4B.
<br />4.1.6 Design of Anchors in Hollow Concrete Masonry
<br />Walls: Allowable tension and shear load values for 1/4-,
<br />5/16-, 3/8-, 1/2-inch-diameter (6.4, 7.9, 9.5, 12.7 mm) steel
<br />threaded rods and 5/16-inch, 3/8-inch, and 1/2-inch (7.9, 9.5,
<br />12.7 mm) HIT -IC internally threaded inserts installed with
<br />Hilti HIT -SC plastic screens through the face of hollow
<br />concrete masonry walls are reported in Tables 6 and 7. The
<br />allowable tension and shear loads are for anchors resisting
<br />static and wind load applications only. Use of these anchors
<br />to resist earthquake loads is outside the scope of this report.
<br />Critical and minimum spacing and edge distances are also
<br />given in Tables 6 and 7.
<br />4.1.7 Design of Anchors in Hollow Brick Masonry
<br />Walls: Allowable tension and shear load values for 1/4-,
<br />5/16-, 3/8-, 1/2-inch-diameter (6.4, 7.9, 9.5, 12.7 mm) steel
<br />threaded rods and 5/16-inch, 3/8-inch, and 1/2-inch (7.9, 9.5,
<br />12.7 mm) HIT -IC internally threaded inserts installed with
<br />Hilti HIT -SC plastic screens through the face of hollow brick
<br />masonry walls are reported in Tables 8A, 813 and 9. The
<br />allowable tension and shear loads are for anchors resisting
<br />static and wind load applications only. Use of these anchors
<br />to resist earthquake loads is outside the scope of this report.
<br />Critical and minimum spacing and edge distances are also
<br />given in Tables 8A, 813, and 9.
<br />4.2 Installation: Installation parameters are illustrated in
<br />Figure 5. Installation of the Hilti HIT-HY 270 Adhesive
<br />Anchor System must conform to the manufacturer's printed
<br />installation instruction (MPII) included in each unit package
<br />as provided in Figure 5 of this report. Anchor locations must
<br />comply with this report and the plans and specifications
<br />approved by the code official.
<br />4.3 Special Inspection
<br />Periodic special inspections are required in accordance with
<br />IBC Sections 1704 and 1705, and are also applicable for
<br />installations under the IRC.
<br />The approved special inspector must be on the jobsite
<br />initially during anchor installation to verify anchor type,
<br />anchor dimensions, adhesive identification and expiration
<br />date, masonry type, masonry compressive strength,
<br />hole dimensions, hole cleaning procedures, anchor spacing,
<br />edge distances, masonry wall thickness, anchor
<br />embedment, tightening torque, base -material temperature,
<br />and adherence to the manufacturer's printed installation
<br />instructions (MPII).
<br />The special inspector must verify the initial installations of
<br />each type and size of adhesive anchor by construction
<br />personnel on the site.
<br />Subsequent installations of the same anchor type and size
<br />by the same construction personnel are permitted to be
<br />performed in the absence of the special inspector. Any
<br />change in the anchor product being installed or the
<br />personnel performing the installation requires an initial
<br />inspection. For ongoing installations over an extended
<br />period, the special inspector must make regular inspections
<br />to confirm correct handling and installation of the product.
<br />5.0 CONDITIONS OF USE
<br />The Hilti HIT-HY 270 Adhesive Anchor System described in
<br />this report complies with, or is a suitable alternative to what
<br />is specified in, those codes listed in Section 1.0 of this
<br />report, subject to the following conditions:
<br />5.1 The Hilti HIT-HY 270 Adhesive Anchor System must
<br />be installed in accordance with the manufacturer's
<br />printed installation instructions (MPII) and this report.
<br />In case of conflict, this report governs.
<br />5.2 Anchor sizes, dimensions, and minimum embedment
<br />depths must be as set forth in this report.
<br />5.3 Prior to installation, calculations and details
<br />demonstrating compliance with this report must be
<br />submitted to the code official for approval. The
<br />calculations must be prepared by a registered design
<br />professional when required by the statutes of the
<br />jurisdiction in which the project is to be constructed.
<br />5.4 Anchors resisting static, seismic or wind loads in
<br />masonry must be designed in accordance with Section
<br />4.0 of this report.
<br />5.5 Grout -filled concrete masonry under the IBC or the IRC
<br />(Tables 3A, 313, 5A, 513, 5C, and 5D): The adhesive
<br />anchors described in Sections 4.1.3 and 4.1.4 of this
<br />evaluation report are capable of resisting seismic and
<br />wind loads. When using the basic load combinations in
<br />accordance with IBC Section 1605.3.1, allowable loads
<br />must not be increased for seismic or wind loading.
<br />When using the alternative basic load combinations in
<br />2009 IBC Section 1605.3.2 that include seismic or wind
<br />loads, the allowable loads may be increased in
<br />accordance with Table 2, or the alternative basic load
<br />
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