To define the parameters of adjoining bars when calculating the buckling coefficient of the main bar, click 
, in the Buckling Diagrams dialog.
Enter the following information for the main bar:
- The number of the consecutive structural bars ( the section for the selected structure bar is automatically entered); enter the bar number in the appropriate field or select the bar on the screen.
- Position (placement) of the bar in the structure; two methods are possible: vertical
or horizontal 
.
For several codes (ADD8, Eurocode3, NEN6770/6771, PN90) another parameter is included: the support method for the opposite end of the adjoining bar. The available support types depend on the selected steel code requirements.
Once the adjoining bar of a selected number is in place, the buckling coefficient value is available in the lower portion of the dialog. The value of the buckling coefficient is located in the Bar Test Value field once the adjoining bar number is selected.
To manually define the parameters of adjoining bars, press the Manual button found in the lower part of the dialog. The manual definition of the adjoining bar parameters will display in an additional window..
To define parameters of varying inertia bars, press the Parameters button to and enter the information on the additional dialog.