Mungo Main Catalogue
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Dictionary Fastening Technology<br />
Number<br />
Page<br />
11 Approved and recommended loads 13<br />
3 Bending moment M 13<br />
10 Breaking load 13<br />
22 Concrete non-cracked/cracked 14<br />
28 Corrosion behavior in a salt spray test 15<br />
21 Corrosion protection 14<br />
24 Deformation 15<br />
18 Different anchor types 14<br />
15 Drilling process 14<br />
2 Edge distance 13<br />
20 Fire protection 14<br />
8 Force 13<br />
29 Grades of steel 15<br />
30 GreenTec® Corrosion resistant zinc alloy layer 15<br />
6 Installation torque 13<br />
13 Load classification 14<br />
Number<br />
Page<br />
7 Load directions 13<br />
14 Methods of application 14<br />
19 Minimum setting depth 14<br />
17 Modes of failure 14<br />
23 Nylon Quality PA6 14<br />
12 Partial safety factor concept 13<br />
27 Screw types (with <strong>Mungo</strong> nylon plugs) 15<br />
4 Screw types 13<br />
9 Setting data 13<br />
16 Setting pattern of insulation fixings 14<br />
26 Solidity under temperature influences 15<br />
25 Sound absorption 15<br />
1 Spacing distance 13<br />
5 Torque 13<br />
31 Zinc flake coating 15<br />
1 Spacing distance<br />
9<br />
Consideration must be given to the minimum<br />
distances required when setting groups of fixings<br />
to avoid failure of the building material. A factor of<br />
3 times the setting depth must be used to achieve<br />
maximum loads.<br />
Setting data<br />
hef<br />
h0<br />
h ef : Effective anchorage depth<br />
h 0 : Drilling depth<br />
h min : Minimum thickness of concrete member<br />
t fix : Usable length<br />
tfix<br />
hmin<br />
2<br />
Edge distance<br />
10<br />
Breaking load<br />
Consideration must be given to the minimum edge<br />
distances to avoid failure of the building material.<br />
Failure of fixing (pt. 17)<br />
3<br />
Bending moment M<br />
For some applications anchors are subjected to<br />
bending moments. For example, at a distance fixing.<br />
11<br />
Approved and recommended loads<br />
Approved loads are those given in the corresponding approval. Working loads<br />
for products with European Technical Assessment include a partial safety factor<br />
given by ETAG. Recommended loads are not always equal to approved loads.<br />
Recommended loads are determined under laboratory conditions and do not<br />
consider any influence of edge or centre distances.<br />
4<br />
Screw types<br />
1) 1 Hexagon<br />
2) 2 PZ2/3<br />
3) 3 T25/T30/T40<br />
4) 4 Hexagon, T40, collar<br />
12<br />
Partial safety factor concept<br />
5<br />
Torque<br />
F<br />
Force (F) x lever arm, measured at fulcrum,<br />
Nm = Newton meter<br />
Action (S)<br />
Resistance (R)<br />
Lever arm<br />
The anchor should be set using the recommended<br />
torque settings.<br />
S k<br />
Characteristic value (k)<br />
R k<br />
6<br />
7<br />
Z<br />
S<br />
Installation torque<br />
When the anchor is set using the correct torque a guaranteed fixing<br />
can be achieved.<br />
Load directions<br />
Q<br />
Tension (Z), Shear (Q), Combined (S)<br />
Frequency<br />
S d<br />
= S k<br />
· γ F<br />
S d<br />
= S k<br />
· γF<br />
S d<br />
≤ R d<br />
Design value (d)<br />
S d<br />
≤ R d<br />
R d<br />
= R k<br />
/γM<br />
Average resistance<br />
R d<br />
= R k<br />
/γ M<br />
Average action<br />
Characteristic value of action (S k )<br />
Design action (S d )<br />
Design resistance (R d )<br />
Characteristic resistance (R k ), 5% fractile<br />
8<br />
Force<br />
The force is indicated in Kilo-Newton (kN) / Newton (N)<br />
1kN=1000N=100dN ≈ 100kg<br />
10N=1dN ≈ 1kg<br />
γ F : Partial safety factor, action<br />
γ M : Partial safety factor, resistance<br />
Load<br />
www.mungo.swiss<br />
13
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