Technical approval
Page 27 of European Technical Approval ETA-07/0137
SIMPSON Strong Tie brackets, purlin and joist anchors Annex 17
of European
Universal brackets capacities
Technical Assessment
UNI130
ETA-07/0137
UNI130 :
All capacities are given in kN for a connection with two brackets, one on each side of the purlin and
only for connector nails in accordance with ETA-04/0013 with the dimensions 4.0 x 40 and 4.0 x 50
mm or with the dimensions 4.2 x 40 and 4.2 x 50 mm.
R
1,k
:
Load duration
Perm.
Long
Medium
Short
Inst.
Nail 4.0 x 40
6,7
7,8
8,9
9,9
11,8
Nail 4.0 x 50
8,8
10,3
11,5
12,7
15,3
R
2,k
= R
3,k
= 4,31 ∙ k
mod
∙ R
lat,k
R
4,k
= R
5,k
= Min ( 4,33 ∙ k
mod
∙ R
lat,k
; k
1
∙ (b + k
2
) / e )
With b the joist width, e the eccentricity of the horizontal load acting perpendicular to the joist and
k
mod
the appropriate modification factor.
With k
1
and k
2
resp. in kN and mm from the Table below :
Load duration
Perm.
Long
Medium
Short
Inst.
With nail 4.0 x 40 : k
1
[kN]
3,5
4,0
4,6
5,2
6,4
With nail 4.0 x 50 : k
1
[kN]
4,0
4,7
5,4
6,0
7,4
With nail 4.0 x 40 : k
2
[mm]
21
21
21
21
21
With nail 4.0 x 50 : k
2
[mm]
23
22
22
22
23