APPENDIX C: Strength Design Performance values in accordance to 2006 and 2009 IBC
ITW RED HEAD TRUBOLT+ and OVERHEAD TRUBOLT+ EDGE ANCHOR DESIGN INFORMATION TESTED TO ICC-ES AC 193
AND ACI 355.2, IN ACCORDANCE WITH 2006 and 2009 IBC
TRUBOLT+ AND OVERHEAD TRUBOLT+ WEDGE ANCHOR DESIGN INFORMATION1
Characteristic
Anchor category
Minimum effective embedment depth
Minimum concrete member thickness
Critical edge distance
Minimum specified yield strength
Minimum specified ultimate strength
Effective tensile stress area (neck)
Effective tensile stress area (thread)
Steel strength in tension
Steel strength in shear, uncracked or cracked concrete 6
Steel strength in shear – seismic loads
Strength reduction factor f for tension, steel failure modes 2
Strength reduction factor f for shear, steel failure modes 2
Symbol
Units
1, 2 or 3
hef
hmin
cac
—
in
in
in
fy
psi
psi
in2
in2
lbf
lbf
lbf
futa
Ase
Ase
Nsa
Vsa
Veq
Nominal Anchor Diameter (inch)4
1/2"
5/8"
3/8"
1
1-5/8
4
5
1
2
5
3
4
6
3-1/4
6
6
3/4"
1
6
7-1/2
8
6
2-3/4
6
7-1/2
4-1/4
6-1/4
6-1/2
1
3-3/4
7
12
8
10
Data for Steel Strengths – Tension and Shear
60,000
75,000
0.056
0.075
4,200
1,830
1,545
0.75
0.60
55,000
75,000
0.119
0.142
8,925
5,175
5,175
0.75
0.65
55,000
75,000
0.183
0.217
13,725
8,955
8,955
0.75
0.65
55,000
75,000
0.266
0.332
19,950
14,970
11,775
0.75
0.65
24
17
24
17
1.0
1.0
Data for Concrete Breakout Concrete Pryout Strengths in Tension and Shear
kuncr
kcr
Effectiveness factor – uncracked concrete
Effectiveness factor – cracked concrete
Modification factor for cracked and uncracked concrete 3
Coefficient for pryout strength
Load-bearing length of anchor
—
—
24
17
yc,N
—
1.0
kcp
le
—
1.0
1.0
2.0
in
1.625
2.0
3.25
Strength reduction factor f for tension, concrete failure modes, Condition B 2
Strength reduction factor f for shear, concrete failure modes, Condition B 2
Np,uncr
Np,cr
Neq
Pullout strength, uncracked concrete
Pullout strength, cracked concrete
Pullout strength for seismic loads
24
17
1.0
0.65
0.70
2.0
2.75
0.65
0.70
2.0
4.25
0.65
0.70
3.75
0.65
0.70
Data for Pullout Strengths
lbf
lbf
See Footnote 5
See Footnote 5
lbf
See Footnote 5
See Footnote 5
See Footnote 5
0.65
Strength reduction factor f for tension, pullout failure modes, Condition B 2
See Footnote 5
6,540
See Footnote 5
5,430
8,900
See Footnote 5
See
6,715
Footnote 5
0.65
See Footnote 5
See Footnote 5
See Footnote 5
See Footnote 5
Additional Anchor Data
Axial stiffness in service load range in uncracked concrete
Axial stiffness in service load range in cracked concrete
buncr
bcr
lbf/in
lbf/in
100,000
40,000
250,000
20,000
250,000
20,000
250,000
20,000
For SI: 1 inch = 25.4 mm, 1 in2 = 645.16mm2, 1 lbf = 4.45 N, 1 psi = 0.006895 MPa, 1 lbf • 102/in - 17,500 N/m.
1
The 1/2”, 5/8” and 3/4" diameter Trubolt+ Wedge Anchors are ductile steel elements as defined by ACI 318 D.1. The 3/8" diameter Trubolt+ is considered ductile under tension loading and brittle under shear loading.
2
All values of f apply to the load combinations of IBC Section 1605.2, ACI 318 Section 9.2 or UBC Section 1612.2. If the load combinations of Appendix C or UBC Section 1909.2 are used, the appropriate value of f must be
determined in accordance with ACI 318 D.4.5. For installations where reinforcement that complies with ACI 318 Appendix D requirements for Condition A is present, the appropriate f factor must be determined in accordance
with ACI 318 D.4.4.
3
For all design cases Ψc,N = 1.0. The appropriate effectiveness factor for cracked concrete (kcr) or uncracked concrete (kuncr) must be used.
4
The actual diameter for the 3/8" diameter anchor is 0.361" for the 5/8" diameter anchor is 0.615" and the 3/4" diameter anchor is 0.7482".
5
Anchor pullout strength does not control anchor design. Determine steel and concrete capacity only.
6
Steel strength in shear values are based on test results per ACI 355.2, Section 9.4 and must be used for design.
TRUBOLT + WEDGE
ANCHOR (INSTALLED)
TRUBOLT + AND OVERHEAD TRUBOLT+ WEDGE INSTALLATION INFORMATION
Parameter
Notation
Units
3/8
Anchor outer diameter
Nominal carbide bit diameter
Effective embedment depth
Minimum anchor embedment depth
Minimum hole depth1
Minimum concrete member thickness1
Critical edge distance1
Minimum anchor spacing1
Minimum edge distance1
Minimum overall anchor length
Installation torque
Minimum diameter of hole in fastened part
For SI: 1 inch = 25.4 mm, 1 ft-lb = 1.356 N-m.
Call our toll free number 800-899-7890 or visit our web site for the most
current product and technical information at www.itwredhead.com
do
dbit
hef
hnom
ho
hmin
cac
smin
cmin
l
Tinst
dh
inches
inches
inches
inches
inches
inches
In.
In.
In.
inches
ft-lb
inches
0.361
3/8
1-5/8
2
2-1/4
4
5
5
3
3-1/2 2-1/2
3
2-1/2
30
1/2
Nominal Achor Diameter (inch)
1/2
5/8
3/4
0.5
1/2
0.615
0.7482
5/8
3/4
2
3-1/4
2-3/4 4-1/4
3-3/4
2-1/2
3-3/4
3-1/4 4-3/4
4-3/8
2-3/4
4
3-1/2
5
4-5/8
4
6
6
8
6
6-1/4
7
8
6
6
7-1/2
6
7-1/2 6-1/2 12
10
6
5-3/4
4
5-3/4
8
6
6
6
6
7-1/2
5
7-1/2 7-1/2
3-3/4
4-1/2
4-1/4
6
5-1/2
45
90
110
5/8
3/4
7/8
103
APPENDIX C: Strength Design Performance values in accordance to 2006 and 2009 IBC
TRUBOLT+ AND OVERHEAD TRUBOLT+ WEDGE ANCHOR ALLOWABLE STRESS DESIGN (ASD) VALUES FOR ILLUSTRATIVE PURPOSES
Anchor Notation
Anchor Embedment Depth
(inches), hnom
Effective Embedment Depth
(inches), hef
Allowable Tension Load
(lbs)
3/8
2
2-1/2
3-3/4
3-1/4
4-3/4
4-3/8
1-5/8
2
3-1/4
2-3/4
4-1/4
3-3/4
1,090
1,490
2,870
2,385
3,910
3,825
1/2
5/8
3/4
For SI: 1 inch = 25.4 mm, 1 ft-lb = 4.45N.
Design Assumptions:
1 Single anchor with static shear load only.
2
Load combinations from 2006 IBC, Sections 1605.2.1 and 1605.3.1 (no seismic loading).
3
Thirty percent dead load and 70 percent live load, controlling load combination 1.2D + 1.6L
4
Calculation of weighted average: 1.2D + 1.6L = 1.2 (0.3) + 1.6 (0.7) = 1.48
5
Values do not include edge distance or spacing reductions.
Nominal Anchor Diameter = 3/8”
Min. 1” Typ.
Sand-Lightweight or
Normal Weight Concrete
(Min. f1c=3,000 PSI)
hnom = 2”
lower flute
hnom = 2”
upper flute
ITW RED HEAD TRUBOLT+ and OVERHEAD TRUBOLT+ WEDGE ANCHOR DESIGN INFORMATION FOR
INSTALLATION IN THE SOFFIT OF CONCRETE FILL ON METAL DECK FLOOR AND ROOF ASSEMBLIES
Min. 1-1/2”
Max. 3”
Lower Flute
Min. 4- / ”
TRUBOLT+ AND OVERHEAD TRUBOLT+ WEDGE ANCHOR DESIGN INFORMATION
1
Characteristic
Symbol
Units
Pullout strength, cracked concrete over metal deck
Reduction factor for pullout strength in tension, Condition B
Shear strength, uncracked concrete over metal deck
Reduction factor for steel strength in shear
Anchor embedment depth
Np, deck, uncr
lbf
Np, deck, cr
lbf
f
––
Vp, deck, uncr
lbf
f
––
hnom
Min. 12” Typ.
Upper Flute
Min. 4-1/2”
Max. 1” Offset, Typ.
3/8"
Nominal Anchor Diameter
1/2"
Upper /Lower
UpperNominal
/Lower Anchor
Lower
Only = 1/2”
Lower Only
Diameter
hef = 1-5/8"
Pullout strength, uncracked concrete over metal deck
2
Min. 0.034”
Thickness Metal Deck
Max. 1”
Offset, Typ.
Min. 1-1/2”
Max. 3”
hef = 3-1/4"
Min. 1” Typ. 2,515
hnom = 2-1/2”
upper flute
5,285
1,650
1,780
4,025
Lower Only
or
hef = 2-3/4" Sand-Lightweight
hef = 4-1/4"
Normal Weight
Concrete
hnom = 2-1/2” or
1
PSI)
(Min. f c=3,000
3,365
6,005
3-3/4” lower
flute
2,405
5,025
0.65
1,640
0.60
in
hef = 2"
2,170
5/8"
2.0
2,200
Lower Flute
Min. 4-1/2”
Max. 1”
Offset, Typ.
Upper Flute
2.5 Min. 4-1/2”
3,790
Min. 0.034”
6,560
Thickness
Metal Deck
2,890
0.65Min. 12” Typ.
3.75
Max. 1” Offset,3.25
Typ.
4.75
For SI: 1 inch = 25.4 mm, 1 lbf = 4.45 N
Nominal Anchor Diameter = 3/8”
hnom = 2”
upper flute
Min. 1” Typ.
hnom = 2”
lower flute
Nominal Anchor Diameter = 5/8”
Sand-Lightweight or
Normal Weight Concrete
(Min. f1c=3,000 PSI)
Min. 1-1/2”
Min. 1” Typ.
hnom = 3-1/4” or
4-3/4” lower flute
Sand-Lightweight or
Normal Weight Concrete
(Min. f1c=3,000 PSI)
Min. 1-1/2”
Max. 3”
Lower Flute
Min. 4-1/2”
Min. 0.034”
Thickness Metal Deck
Max. 1”
Offset, Typ.
Min. 0.034”
Thickness Metal Deck
Lower Flute
Min. 4-1/2”
Min. 12” Typ.
Upper Flute
Min. 4-1/2”
Max. 3”
Max. 1” Offset, Typ.
Min. 12” Typ.
Upper Flute
Min. 4-1/2”
Max. 1” Offset, Typ.
Nominal Anchor Diameter = 1/2”
hnom = 2-1/2”
upper flute
Min. 1” Typ.
hnom = 2-1/2” or
3-3/4” lower flute
Sand-Lightweight or
Normal Weight Concrete
(Min. f1c=3,000 PSI)
Min. 1-1/2”
Max. 3”
Lower Flute
Min. 4-1/2”
Max. 1”
Offset, Typ.
Upper Flute
Min. 4-1/2”
2006 IBC t
n
Complia
Min. 0.034”
Thickness Metal Deck
Min. 12” Typ.
Max. 1” Offset, Typ.
Nominal Anchor Diameter = 5/8”
104
Min. 1-1/2”
Min. 1” Typ.
hnom = 3-1/4” or
4-3/4” lower flute
Sand-Lightweight or
Normal Weight Concrete
(Min. f1c=3,000 PSI)
Call our toll free number 800-899-7890 or visit our web site for the most
current product and technical information at www.itwredhead.com