30 years in the software engineering.

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Purlins and binder members are being modelled as a group and their connection details can be chosen from preferences , the trusses are formed group elements , truss connection details can be selected from present options accoording to the design such as being more than one halls or the gutter details interactive data entry can be done.

At analysis results, loads, moments, shear forces and axial loads, will be seen on three-dimensional display directly.Self-weight of all elements are takan into acoount.
Also from plaques and roof coating self-weight loads and wind loads are taken into account in the analytical solution.

Connection of elements in all the details, can be arranged with alternative menus. All the elements, profiles, plates, bolts and welds are stored as vectoral. The holes because of being controlled by 3d intersections at details are processed without error. All the ingredients , even if washers are participating in quantities.
 

STA Steel

STA4-CAD