Double walls without girders

There are three ways of creating double walls without latticed girders:

1. Disable the Use girders option in the Girders tab of the Reinforcement parameters dialog box.
2. Set the Calculate girders based on option to Manual in the Girders tab of the Reinforcement parameters dialog box and do not select a girder for the Girder type parameter in the Precast wall units dialog box.
3. Select one of the options in the Calculate girders based on area in the Girders tab of the Reinforcement parameters dialog box. The algorithm used for girder calculation cannot find a valid girder type.
   

   Options for calculating girders

   Option 1: the girder height is calculated from the wall thickness minus the concrete covers and twice the value of the bar thickness entered. The tolerances specified are taken into account.
   Using this option, you can control how the height is calculated, as the girder heights specified in the girder catalog often differ from the height between the bottom boom and the top boom.

   Option 2: the girder height is calculated from the wall thickness minus the concrete covers and the actual diameters of the first cross bars. If the cross bars are not in the first layer, all the diameters of the outer bars are also considered. The tolerances specified are taken into account.

   Option 3: the girder height is calculated from the wall thickness minus the value specified. The program adjusts the concrete cover, so that the combination of possible spacers and calculated cross bars is as close as possible to the value specified. It is essential that the entire reinforcement is defined before it is created. Otherwise, the concrete cover cannot be calculated correctly. The tolerances specified are taken into account.
   

   Note: You can define the bar thickness (for option 1), the value to be subtracted (for option 3) and the tolerances in the configuration entry for lattice girders of the double wall calculation.