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European technical assessment ETA-0 8 / 0 2 0 2
English translation prepared by CSTB
Minimum anchorage length and minimum lap length
The minimum anchorage length l
EN 1992-1-1 shall be multiplied by the relevant amplification factor α
Amplification factor α
Table C1:
Hollow Drill Bit TE-CD, TE-YD and Compressed air drilling
Bar diameter
ϕ 8 to ϕ 25
Table C2:
Bond efficiency value k
Hollow Drill Bit TE-CD, TE-YD and Compressed air drilling
Bar diameter
Units
ϕ 8 to ϕ 25
Table C3:
Design values of the ultimate bond resistance f
Hammer drilling, Hammer drilling with Hilti Hollow Drill Bit TE-CD, TE-
YD and Compressed air drilling
Bar diameter
ϕ 8 to ϕ 24
[N/mm²]
ϕ 25
[N/mm²]
According to EN 1992-1-1 for good bond conditions with consideration
1)
1992-1-1). For all other bond conditions multiply the values by 0,7.
Injection system Hilti HIT-HY 150 MAX
Performance
Minimum anchorage length and minimum lap length
Design values of ultimate bond resistance f
and the minimum lap length l
b,min
lb
Units
C12/15 C16/20 C20/25 C25/30 C30/37 C35/45 C40/50 C45/55 C50/60
[-]
C12/15 C16/20 C20/25 C25/30 C30/37 C35/45 C40/50 C45/55 C50/60
[-]
1,00
1,00
Units
C12/15 C16/20 C20/25 C25/30 C30/37 C35/45 C40/50 C45/55 C50/60
1,6
2,0
1,6
2,0
bd
according to
0,min
given in Table C1.
lb
for Hammer drilling, Hammer drilling with Hilti
Concrete class
1,5
for Hammer drilling, Hammer drilling with Hilti
b
Concrete class
1,00
1,00
1,00
Concrete class
2,3
2,7
3,0
2,3
2,7
3,0
=1,5 (recommended value according to EN
c
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1,00
1,00
1,00
1)
in N/mm² for
bd
3,4
3,4
3,4
3,4
3,7
3,7
Annex C1
1,00
3,7
3,7
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