HUS-
V Screw
anc
hor
Thes
e pages
are part of the Anchor
Fas
tening
Technology Manual is
s
ue September 2014
09 /
2014
280
Influencing factors
Influence of concrete strength
Concrete strength
des
ignation
(ENV 206)
C 20/25
C 25/30
C 30/37
C 35/45
C 40/50
C 45/55
C 50/60
Pull-out ,
concrete cone and splitting resistanc
e
f
B
=
(f
ck,cube
/25N/mm²)
1/2
a)
1
1,1
1,22
1,34
1,41
1,48
1,55
a)
f
ck,cube
= concrete compressive strength, measured
on cubes with 150 mm side lengt
h
Influence
of edge distance
a)
c/c
cr,N
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1
c/c
cr,sp
f
1,N
=
0,7 + 0,3
c/c
cr,N
≤
1
0,73
0,76
0,79
0,82
0,85
0,88
0,91
0,94
0,97
1
f
1,sp
=
0,7 + 0,3
c/c
cr,sp
≤
1
f
2,N
=
0,5
(1 + c/c
cr,N
)
≤
1
0,55
0,60
0,65
0,70
0,75
0,80
0,85
0,90
0,95
1
f
2,sp
=
0,5
(1 + c/c
cr,sp
)
≤
1
a)
The edge distance shall not be smaller than the minimum edge distance c
min
giv
en in the table with the
setting
details,
These influencing factors must
be
considered for ev
ery
edge distance,
Influence
of anchor spacing
a)
s/
s
cr,N
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1
s/
s
cr,sp
f
3,N
=
0,5
(1 + s/s
cr,N
)
≤
1
0,55
0,60
0,65
0,70
0,75
0,80
0,85
0,90
0,95
1
f
3,sp
=
0,5
(1 + s/s
cr,sp
)
≤
1
a)
The anchor spac
ing shall not be smaller than the minimum anchor
spacing s
min
giv
en in the table with t
he
setting details, T
his influencing factor must be considered for ev
ery
anchor spacing,
Influence
of base material
thickness
h/h
min
1,0
1,1
1,2
1,3
1,4
1,5
1,6
1,7
1,8
1,84
f
h,sp
=
[h/(h
min
)]
2/3
1
1,07
1,13
1,19
1,25
1,31
1,37
1,42
1,48
1,5
Influence of reinforcement
a)
Anchor size
8
10
Type
HUS-V
Nominal anchorage
depth
h
nom
[mm]
50
65
55
75
f
re,N
=
0,5 + h
ef
/200mm
≤
1
0,70
0,76
0,71
0,80
e)
This factor applies only for dense reinforcement, If in the area of anchorage there is reinforcement with a
spacing
≥
150 mm (any diameter) or with a diameter
≤
10 mm and a s
pacing
≥
100 mm, then a factor f
re,N
= 1
may be applied,
