Design lap length l0
Eurocode 2 part 1-1: Design of concrete structures 8.7.3 (1)
The design lap length is:
| l0 = α1 α2 α3 α5 α6 lb,rqd ≥ l0,min | (8.10) |
where:
- α1, α2, α3 and α5 may be taken from Table 8.2; however, for the calculation of α3, ΣAst,min = As(σsd/fyd).
- α6
- = (ρ1/25)0,5; 1,0 ≤ α6 ≤ 1,5
where ρ1 is the percentage of reinforcement lapped within 0,65⋅l0 from the centre of the lap length considered. - lb,rqd
- is the basic required anchorage length
- l0,min
- is the minimum lap length
where Φ is the bar diameter.l0,min ≥ max{0,3α6lb,rqd; 15Φ; 200 mm} (8.11)
This application calculates the lap length l0 from your inputs. Intermediate results will also be given.
