Figure 4 — Installation of Hilti KB-TZ2 carbon steel in the soffit of concrete over metal deck floor and roof assemblies – W deck 2
Min . 12 " typ .
Upper flute installation
Lower flute installation
h min , deck
|
Min . 5 / 8 " 1
|
Max . 3 " |
Min . 3-7 / 8 " |
Min . 1 " |
Min . 3-7 / 8 " |
Min . 20-gauge steel deck |
Figure 5 — Installation of Hilti KB-TZ2 carbon steel in the soffit of concrete over metal deck floor and roof assemblies – B deck
Lower flute installation
Min . 6 " typ .
Upper flute installation h min , deck
Min . 5 / 8 " 1
Max . 1-1 / 2 "
Min . 3-1 / 2 "
Min . 3 / 4 " Min . 1-3 / 4 " Min . 20-gauge steel deck
1 5 / 8 ” clearance between the bottom of the drilled hole and the concrete surface is only applicable for upper flute installations . Refer to Tables 34 and 35 for minimum concrete thicknesses for installations into the lower flute . 2 For flute widths greater or equal to 4-1 / 2 ", the shear strength may be increased . Refer to ESR-4266 for more information .
Table 36 — Hilti KB-TZ2 carbon steel anchors setting information for installation on the top of concrete-filled profile steel deck asseblies according to figure 6 1 , 2 , 3
Design information Symbol Units
Nominal anchor diameter ( in )
1 / 4 3 / 8 1 / 2 Effective minimum embedment h ef in . 1-1 / 2 1-1 / 2 2 2 Nominal minimum embedment h nom in . 1-3 / 4 1-7 / 8 2-1 / 2 2-1 / 2 Minimum hole depth h 0 in . 2 2 2-1 / 2 2-3 / 4 Minimum concrete thickness 4 h min , deck in . 2-1 / 2 2-1 / 2 2-1 / 2 3-2 / 4 Critical edge distance c ac , deck , top in . 5 8 4-1 / 2 6 Minimum edge distance c min , deck , top in . 3 16 7-1 / 2 Minimum spacing s min , deck , top in . 3 8 9 Required installation torque T inst ft-lb 4 30 50
1 Installation must comply with Figure 6 of this report . 2 Design capacity shall be based on calculations according to values in Tables 2 and 3 of this report . 3 Applicable for h min , deck
< 4-in . For h min , deck
≥ 4-in , use setting information in Tables 1 and 5 of this section . 4 Minimun concrete thickness refers to concrete thickness above the upper flute . See Figure 6 .
Figure 6 — KB-TZ2 Installation in the top of concrete filled profile steel deck assemblies
h min
|
|
Min . 3,000 psi Normal-Weight or Lightweight Concrete |
|
|
Min .
1-1 / 2 ”
|
Min . 1-3 / 4 ”
Min . 2-1 / 2 ”
|
Upper Flute ( Valley )
Min . 3-1 / 2 ”
Min . 6 ” Typical
|
Minimum 20 Gauge Steel B-Deck 1
Lower Flute ( Ridge )
|
1 1-1 / 2-in B-deck as a minimum profile size . Other deck profiles meeting the B-deck minimum dimensions are also permitted
318 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.5 KWIK BOLT TZ2 EXPANSION 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