Anchor Fastening Technical Guide , Edition 22
Figure 2 — Installation of Hilti KWIK HUS-EZ I and KWIK HUS-EZ E in soffit of concrete over steel deck floor and roof assemblies
1 Anchors may be placed in the upper or lower flute of the steel deck profile provided the minimum concrete cover above the drilled hole is satisfied . Anchors in the lower flute may be installed with a maximum 1-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 .
DESIGN INFORMATION IN CONCRETE PER CSA A23.3
Limit State Design of anchors is described in the provisions of CSA A23.3 Annex D for post-installed anchors tested and assessed in accordance with ACI 355.2 for mechanical anchors and ACI 355.4 for adhesive anchors . This section contains the Limit State Design tables with unfactored characteristic loads that are based on the published loads in ICC Evaluation Services ESR-3027 . These tables are followed by factored resistance tables . The factored resistance tables have characteristic design loads that are prefactored by the applicable reduction factors for a single anchor with no anchor-to-anchor spacing or edge distance adjustments for the convenience of the user of this document . All the figures in the previous ACI 318 Chapter 17 design section are applicable to Limit State Design and the tables will reference these figures .
3.3.8
For a detailed explanation of the tables developed in accordance with CSA A23.3 Annex D , refer to Section 3.1.8 . Technical assistance is available by contacting Hilti Canada at ( 800 ) 363-4458 or at www . hilti . com .
Table 11 — Steel resistance for Hilti KWIK HUS-EZ I and KWIK HUS-EZ E carbon steel screw anchor 1 , 2
Nominal anchor diameter in .
Internal thread diameter ( UNC )
1 / 4 1 / 4-20
1 / 4 3 / 8-16
3 / 8 1 / 2-13
Tensile 3
N sar lb ( kN )
Shear 4
V sar lb ( kN )
Seismic shear 5
V sar , eq lb ( kN )
3,370 750 335 ( 15.0 ) ( 3.3 ) ( 1.5 ) 3,370 725 620 ( 15.0 ) ( 3.2 ) ( 2.8 ) 5,515 1,040 1,040 ( 24.5 ) ( 4.6 ) ( 4.6 )
1 See Section 3.1.8 of Hilti Product Technical Guide Ed 21 to convert factored resistance value to ASD value . 2 Hilti KWIK HUS-EZ I carbon steel screw anchors are to be considered brittle steel elements . 3 Tensile N sar
= A se , N ф s f uta
R as noted in CSA A23.3 Annex D . 4 Shear determined by static shear tests with V sar
< 0.6 A se , V ф s f uta
R as noted in CSA A23.3 Annex D . 5 Seismic shear values determined by seismic shear tests with V sar , eq
≤ 0.60 A se , V ф s f uta
R as noted in CSA A23.3 Annex D . See Section 3.1.8 of Hilti Product Technical Guide Ed 21 for additional information on seismic applications .
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.8 KWIK HUS-EZ I AND KWIK HUS-EZ E CARBON STEEL SCREW ANCHOR Hilti , Inc . 1-800-879-8000 | en español 1-800-879-5000 | www . hilti . com | Hilti ( Canada ) Corporation | www . hilti . ca | 1-800-363-4458
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