Instructions / Assembly

98
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.2.2 HILTI HIT-HY 200 A/R V3
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Table 98 — Suggested embedment and edge distance (see figure below) based on CSA A23.3 Annex D to
develop 125% of f
y
in Canadian 400 MPa wall/column starter bars in a linear array with bar
spacing = 300 millimeters - non-seismic design only
1,2,3,4,5,6
Rebar
size
Linear
spacing
s
mm
ƒ'
c
= 20 MPa ƒ'
c
= 25 MPa ƒ'
c
= 30 MPa ƒ'
c
= 40 MPa
Effective
embed.
h
ef
mm
Minimum
edge dist
c
a,min
mm
Effective
embed.
h
ef
mm
Minimum
edge dist
c
a,min
mm
Effective
embed.
h
ef
mm
Minimum
edge dist
c
a,min
mm
Effective
embed.
h
ef
mm
Minimum
edge dist
c
a,min
mm
Cond.
I
Cond.
II
Cond.
I
Cond.
II
Cond.
I
Cond.
II
Cond.
I
Cond.
II
10M 300 240 610 350 200 520 300 200 510 260 190 500 210
1 h
ef
is the calculated bar embedment based on uncracked bond and concrete breakout strengths using equations in section 3.1.14 to develop 125% of nominal bar yield. Shaded
embedment values exceed 20 bar diameters. For non-tabulated rebar sizes, design per development length provisions is recommended. The particular assumptions used for the application
of anchor theory to bar development (e.g., bar yield and bond strength values) are a matter of engineering judgment and will in part depend on the specific circumstances of the design. For
embedments corresponding to nominal yield (i.e., no overstrength) multiply the tabulated hef values by 0.86.
2 c
a
is the minimum edge distance (from bar centerline) associated with the tabulated embedments and s = 300 mm. Refer to sec. 3.1.14 for applicability of edge distance “Condition I” and
“Condition II.”
3 Applicable for hammer-drilled holes. For rock-drilled and core-drilled holes, contact Hilti.
4 Values determined with bond stresses, k-factors and strength reduction factors taken from ESR-4868 Tables 12 and 13 assuming dry, uncracked concrete conditions where concrete
temperatures will not exceed a maximum short-term temperature of 130°F (55°C) and long-term temperature of 110°F (43°C). Bond stresses are for static (non-seismic) loading conditions.
5 Values are for normal weight concrete. For lightweight concrete contact Hilti.
6 Refer to the Hilti North America Post-Installed Reinforcing Bar Guide for further explanation, background information, and design examples. See Hilti Instructions for Use (IFU) for specific
installation requirements.
SECTION
(E)
h
ef
(N)
≥ c
a,min
PLANSECTION
≥ c
a,min
s = 300 mm s = 300 mm
Bars in linear array
Illustration of Table 98 dimensions