Click Reinforcement Pattern on the toolbar or select Analysis > Reinforcement Pattern and select the Opening reinforcement tab to define parameters of opening reinforcement for the BAEL code. For the ACI code, constructional reinforcement according to point 14.3.7 of ACI 318-02 is adopted.
Opening reinforcement in RC walls is composed of:
- Vertical reinforcement of opening edges RV
RV = 0,85 * 400 / fe (cm^2)
- Horizontal reinforcement of opening edges RH (walls not subjected to seismic loads). The value of this reinforcement depends on what type of a wall is calculated (external wall, internal wall)
- Horizontal reinforcement of opening edges RH (walls subjected to seismic loads)
RH = 2,35 * 400 / fe (cm^2)
- Lintel reinforcement. When using the BAEL simplified method, for lintels of openings the calculations of reinforcement required due to the bending moment acting in the lintel - the bottom longitudinal reinforcement of the lintel and the transversal reinforcement in the form of suspended stirrups are generated. In the case of the classic method, or the simplified method when dealing with a wall loaded only with reduced loads, only constructional reinforcement of the lintel is generated (currently, reduction to the lintel of loads applied as reduced ones at the wall base is not accounted for).