2.7.2 Design Internal Forces

Design Internal Forces

As described above, the calculation of stiffnesses is based on linear-elastic assumptions. The internal forces are transformed in the orthogonal reinforcement directions φ as well as on both surfaces s (top and bottom). The determined internal forces – bending moments m_φ,s and axial forces n_φ,s (torsion moments are eliminated by a transformation in the reinforcement directions) – depend on the

1. type of model,
2. method of calculation,
3. classification criterion.