Use this option to define additional code parameters for the steel member type. Access the parameters by clicking the More button in the Member Definition - Parameters dialog. 
The following parameters are defined:
- Load type parameters in the directions of axes Y and Z 
 
- Section parameters 
- Anet/Agross ratio which applies to a tensile force acting on the cable. It is a coefficient that defines the relationship of the member cross-section area, not considering the bolt or rivet openings (Anet), to the total cross-section area (Agross) 
 
-  Eta parameter 
 
  
- Parameters for angles in tension 
 
- Parameters for pipe sections (yield strength) 
 
- Round pipe case conditions. If the Pipes - unidirectional bending option is selected, then, for this type of section, a bending moment equal to a sum of moments acting along axes Y and Z is calculated; this resultant moment is the basis for member design.