Adhesive Anchoring Systems
HIT-HY 70 Hybrid for Masonry Construction 3.2.6
3.2.6
Hilti, Inc. (US) 1-800-879-8000 | www.us.hilti.com I en español 1-800-879-5000 I Hilti (Canada) Corp. 1-800-363-4458 I www.hilti.ca I Anchor Fastening Technical Guide 2016 221
Table 13 -
HIT-HY 70 allowable adhesive bond seismic loads for threaded rods and
reinforcing bars in unreinforced brick masonry
1, 2, 3
Configuration A — Shear anchor or rebar dowel
Nominal anchor
diameter
Bar
size
Embedment
Minimum wall thickness
Tension
Shear
4
in.
in.
(mm)
in.
(mm)
lb
(kN)
lb
(kN)
1/2
4
8
(203)
13
(330)
-
-
500
(2.2)
5/8
5
-
-
750
(3.3)
3/4
6
-
-
1,000
(4.5)
Configuration B — 22 1/2° combination anchor
Nominal anchor diameter
Embedment
in.
Minimum wall thickness
Tension
Shear
4
in.
in.
(mm)
lb
(kN)
lb
(kN)
3/4
Within 1 inch of the
opposite wall surface
13
(330)
1,200
(5.3)
1,000
(4.5)
1 Allowable load values are applicable only to anchors where in-place shear tests indicate minimum mortar strength of 50 psi.
2 Allowable loads are computed in accordance with ICC-ES AC60 (2010) and IBC
3 No increase for short-term loading is permitted, such as loading induced by wind or earthquake.
4 Anchors must be tested in accordance with the requirements of IEBC and UCBC.
Table 14 -
HIT-HY 70 allowable adhesive bond loads for threaded rods in hollow core concrete panels
1,4,5,6,7
Nominal anchor
diameter
Effective
embedment
Minimum
concrete thickness
Tension
Shear
in.
in.
(mm)
2
in.
(mm)
3
lb
(kN)
lb
(kN)
3/8
2
(50.8)
1-3/8
(34.9)
450
(2.0)
560
(2.5)
1 All values are for anchor installed in hollow core concrete with minimum compressive strength of 7,000 psi. Due to variations in materials and dimensional
configurations, on-site testing is required to determine the actual performance of the anchor. Allowable loads are calculated using a safety factor of 5.
2 Tabulated embedment depth is limited by the length of the plastic HIT-SC 16x50 mm screens. See figure 11.
3 The required concrete thickness is the thickness for which values are available and installation is recommended. Anchors shall be installed along the centerline of the
hollow core or along the line of minimum thickness. Verify these requirements with the hollow core plank supplier before installation. The required thickness is measured
from the inner to the outer side of the hollow core panel. In case of deviation from the outlined requirements, field testing is required. See figure 11.
4 Tabulated allowable loads must be the lesser of the adjusted concrete or bond values tabulated and the steel values in table 4.
5 Tabulated allowable bond loads shall be adjusted for increased base material temperatures in accordance with figure 12.
6 The required adhesive gel and cure times shall be identical to the values adopted for masonry.
7 For combined loading: (T
applied
/ T
allowable
) + (V
applied
/ V
allowable
) ≤ 1
Figure 11 - Hilti HIT-HY 70 adhesive installed in hollow core concrete
1,2
1 Representation of the tested conditions for
which allowable adhesive bond loads are
applicable. Refer to footnote 3 of corresponding
load table above for more information on
requirements and restrictions on the admissible
anchor installation.
2 Minimum edge distance is 6-inches.
Minimum spacing is:
- 8-inches along the length of each hollow
core section.
- One anchor per hollow core section (left and
right on page), 6-inches minimum.
Figure 9 — Hilti HIT-HY 70 shear anchor
or dowel in configuration A
Figure 10 — Hilti HIT-HY 70 with 22-1/2°
combination anchor in configuration B
