Design lap length l_{0}
Eurocode 2 part 1-1: Design of concrete structures 8.7.3 (1)
The design lap length is:
l_{0} = α_{1} α_{2} α_{3} α_{5} α_{6} l_{b,rqd} ≥ l_{0,min} | (8.10) |
where:
- α_{1}, α_{2}, α_{3} and α_{5} may be taken from Table 8.2; however, for the calculation of α_{3}, ΣA_{st,min} = A_{s}(σ_{sd}/f_{yd}).
- α_{6}
- = (ρ_{1}/25)^{0,5}; 1,0 ≤ α_{6} ≤ 1,5
where ρ_{1} is the percentage of reinforcement lapped within 0,65⋅l_{0} from the centre of the lap length considered. - l_{b,rqd}
- is the basic required anchorage length
- l_{0,min}
- is the minimum lap length
l_{0,min} ≥ max{0,3α_{6}l_{b,rqd}; 15Φ; 200 mm} (8.11)
This application calculates the lap length l_{0} from your inputs. Intermediate results will also be given.