Effective depth of section (concrete beam: EC2)
For the design of the longitudinal tension reinforcement, the effective depth of a section, d is defined as the distance from the extreme concrete fibre in compression to the centre of gravity of the longitudinal tension reinforcement.
For the design of the longitudinal compression reinforcement, the effective depth in compression, d2 is defined as the distance from the extreme fibre in compression to the centre of gravity of the longitudinal compression reinforcement.
