HILTI PROFIS ENGINEERING 3.0.44
Adhesive anchor group
Example PROFIS Engineering Report for an adhesive anchor group
Group calculations are for N cbg , N ag
, V cbg , and V cpg
3.4 Concrete Breakout Failure 14 Eq . ( 17.4.2.1b )
N cbg
A Nc ψec , N ψ ed , N ψ c , N ψ cp , N
N b
A Nc0
ϕN cbg
≥ N ua ACI 318-14 Table 17.3.1.1
A Nc
= see ACI 318-14 , Section 17.4.2.1 , Fig . R17.4.2.1 ( b )
A Nc0
= 9 h ef
2
ACI 318-14 Eq . ( 17.4.2.1c ) ψ ec , N
=
1
1 + 2e ́N
3h ef
≤ 1.0
ACI 318-14 Eq . ( 17.4.2.4 ) ψ ed , N
= 0.7 + 0.3 c a , min ≤ 1 . 0
1.5h ef
ACI 318-14 Eq . ( 17.4.2.5b ) ψ cp , N
= MAX c a , min
, 1 . 5h ef ≤ 1.0
ACI 318-14 Eq . ( 17.4.2.7b ) c ac c ac
N b
= k c λ a f ́c h ef
1.5 ACI 318-14 Eq . ( 17.4.2.2a )
Variables |
|
h ef
[ in .]
|
e c1 , N
[ in .]
|
e c2 , N
[ in .]
|
c a , min
[ in .]
|
ψ c , N
|
20.000 |
0.000 |
0.000 |
30.000 |
1.000 |
|
c ac
[ in .]
|
k c
|
λ a
|
[ psi ] f ́c
|
|
57.969 |
17 |
0.600 |
4000 |
|
Calculations
A Nc
[ in . 2 ] A Nc0 [ in . 2 ] ψ c1 , N ψ ec2 , N ψ ed , N ψ cp , N
N b
[ lb ] 5,472.00 3,600.00 1.000 1.000 1.00 1.000 57,700
Results
N cbg
[ lb ] ϕ concrete ϕ seismic ϕ nonductile ϕN cbg
[ lb ] N ua
[ lb ] 87,704 0.650 0.750 1.000 42,756 20,000
Input data and results must be checked for conformity with the existing conditions and for plausibility ! * PROFIS Engineering ( c ) 2003-2018 Hilti AG , FL-9494 Schaan Hilti is a registered Trademark of Hilti AG , Schaan
373 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-14 Provisions