For Spanish codes (EH91, EHE98) the following calculations are performed:
Beams 
- Calculation of theoretical (required) reinforcement area for ULS and SLS. 
 
- Calculation of cracking width. 
 
- Calculation of theoretical (required) stirrups spacing for shear forces. 
 
- Re-calculation of theoretical (required) area to a bar number. 
 
- Re-calculation of theoretical (required) stirrups spacing to a modular spacing in a given number of equal zones. 
 
Columns 
- Calculation of theoretical (required) reinforcement area for ULS with taking slenderness for sway and non-sway frames into consideration. 
 
- Calculation of theoretical (required) stirrups spacing. 
 
- Re-calculation of theoretical (required) area to a bar number. 
 
- Re-calculation of theoretical (required) stirrups spacing to a modular spacing at the length of a column.