Rothoblaas Catalogue 2019

TECHNICAL ASPECTS

INSTALLATION

Spacing and minimum distances

M8 M10 M12 M16

s min

[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm]

50 50 50 50

55 80 50

60 90 55

70

Minimum spacing

for c ≥

120

c min

85

Minimum edge distance

for s ≥

100

145 140

150 170

s

h min

Minimum thickness of concrete support

100 120

c

Spacing and critical distances

M8 M10 M12 M16

h

s cr,N (3) s cr,sp (4) c cr,N (3) c cr,sp (4)

135

180 210

255

min

Critical spacing

180 240 280 340

c

s

68 90

90

105 140

128 170

Critical edge distance

120

For spacing and distances smaller than the critical ones, strength values have to be reduced depending on the installation parameters.

STATIC VALUES Valid for a single anchor in thickened C20/25 grade concrete with a thin reinforcing layer when spacing and edge-distance are not limiting parameters.

CHARACTERISTIC VALUES

UNCRACKED CONCRETE

CRACKED CONCRETE

TENSION (1)

SHEAR (2)

TENSION (1)

SHEAR

N Rk,p [kN]

V Rk,s [kN]

N Rk,p [kN]

V Rk,s [kN]

γ Mp

γ Ms

γ Mp

γ M

incremental factor for N Rk,p (6)

γ Mc = 1,5 (5) γ Ms = 1,25 (2) γ Ms = 1,25 (2) γ Ms = 1,25 (2)

M8

M8

9

1,8 1,8 1,8 1,5

11 17 25 47

1,25 1,25 1,25 1,25

5 9

1,8 1,8 1,8 1,5

11 17 25 47

C25/30 C30/37 C40/50 C50/60

1,04 1,10 1,20 1,28

M10 M12 M16

M10 M12 M16

16 20 35

ψ c

12 20

ADMISSIBLE VALUES (recommended)

UNCRACKED CONCRETE

CRACKED CONCRETE

TENSION

SHEAR

TENSION

SHEAR

N rec [kN]

V rec [kN]

N rec [kN]

V rec [kN]

M8

M8

3,6 6,3 7,9

6,3 9,7

2,0 3,6 4,8 9,5

5,2 9,7

M10 M12 M16

M10 M12 M16

14,3 26,9

14,3 26,9

16,7

GENERAL PRINCIPLES:

- Characteristic values according to ETA-10/0076. - Design values can be obtained from characteristic values as follows: R d = R k / γ m . Coefficients γ m are listed in the table in accordance with the failure characteristics and product certificates. - Admissible values (recommended) are evaluated based on the characteristic values by applying the material safety factors γ m according to ETA and a further partial factor for external actions γ f = 1,4. - For the calculation of anchors with reduced spacing, or too close to the edge, please refer to ETA. Similarly, in case of fastening on concrete- supports with a better-grade, limited thickness or a thick reinforcing layer please see ETA. - When designing anchors under seismic load please refer to the ETA referral document and information in the EOTA Technical Report 045. - For the calculation of anchors subjected to fire refer to the ETA and the Technical Report 020.

NOTES:

(1) Pull-out failure mode. (2) Steel failure mode. (3) Breakage characteristics for formation of concrete cone for tensile loads. (4) Splitting failure mode for tensile loads. (5) Pry-out failure mode. (6) Tensile-strength increment factor (excluding steel failure).

COMPLEMENTARY PRODUCTS | AB1 A4 | 203