Rothoblaas Catalogue 2019

TECHNICAL ASPECTS

INSTALLATION

SKR CE / SKS CE

Spacing and minimum distances

8

10 50 50

12 60 60

16 80 80

s min c min h min

Minimum spacing

[mm] [mm] [mm]

45 45

Minimum edge distance

Minimum thickness of concrete support

100

110

130

170

s

c

Spacing and critical distances

8

10

12

16

s cr,N (4) s cr,sp (5) c cr,N (4) c cr,sp (5)

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

144 160

168 175

192 195

255 255 128 130

h

min

Critical spacing

c

s

72 80

84 85

96 95

Critical edge distance

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 / Rk,cp [kN]

γ Mp

γ Ms

γ Mp

γ Ms,Mc

9,4 (2)

8

8

16 20 25 40 16 20

2,1 1,8 2,1 2,1 2,1 1,8

9,4

1,5 1,5 1,5 1,5 1,5 1,5

4

2,1

1,5 1,5 1,5 1,5 1,5 1,5

1,8 15,1 (3)

10 12 16

10 12 16

20,1 32,4 56,9

7,5

SKR CE

SKR CE

incremental factor for N Rk,p (6)

32,4 (2) 56,4 (3)

9

2,1 2,1 2,1

16

C30/37 C40/50 C50/60

1,22 1,41 1,58

ψ c

9,4 (2)

8

8

9,4

4

SKS CE

SKS CE

1,8 20,1 (2)

10

10

20,1

7,5

ADMISSIBLE VALUES (recommended)

UNCRACKED CONCRETE

CRACKED CONCRETE

TENSION

SHEAR

TENSION

SHEAR

N rec [kN]

V rec [kN]

N rec [kN]

V rec [kN]

8

8

5,4 7,9 8,5

4,5 9,6

1,4 3,0 3,1 5,4 1,4 3,0

4,5 7,2

10 12 16

10 12 16

SKR CE

SKR CE

15,4 27,1

15,4 26,9

13,6

8

8

5,4 7,9

4,5 9,6

4,5 9,6

SKS CE

SKS CE

10

10

GENERAL PRINCIPLES:

- Characteristic values according to ETA-11/0336. - 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 (V Rk,s ).

(3) Pry-out failure mode (V Rk,cp ). (4) Concrete cone failure mode. (5) Splitting failure mode. (6) Tensile-strength increment factor (excluding steel failure).

COMPLEMENTARY PRODUCTS| SKR - SKS CE | 197