Method of analysis for second order effects, based on nominal curvature: the nominal second order moment M2
Eurocode 2 part 1-1: Design of concrete structures 220.127.116.11 (3)
The nominal second order moment M2 is defined by:
|M2 = NEd e2||(5.33)|
- is the design value of axial force
- is the deflection, e2 = (1/r) l02 / c
- the curvature.
- the effective length, cf. 18.104.22.168
- a factor depending on the curvature distribution.
For constant cross section, c = 10 is normally used. If the first order moment is constant, a lower value should be considered (8 is a lower limit, corresponding to constant total moment).
This application calculates the nominal second order moment M2 from your inputs.