Portal Frame

Different materials can be selected for the individual components. The following materials are available:

• Structural steel (S235, S275, S355, S450)
• Annealed steel (S275N to S460N)
• Thermo-steel (S275M to S460M)
• Weathering steel (S235W to S355W)
• High-temperature steel (S460Q to S460QL1)
• Hollow section, hot-finished (S235H to S355H)
• Hollow section, hot-finished, fine-grain (S275NH to S460NH)
• User-defined steel

Available systems:

• Two-hinged frames with or without cantilever(s)
• Three-hinged frames with or without cantilever(s)
• Restrained frame with or without cantilever(s)

Cross-sections:

• I-sections as standard shapes
• User-defined I-sections

Supports:

• Base pinned or restrained
• Consideration of spring values for restrained and horizontally sway bases
• The user can define the frame corners with a joint, as being flexurally rigid or by means of a torsional spring
• Intermediate restraints for cross beams and columns out of plane (rigid/spring value) can be defined in addition
• Translational and torsional restraints for the cross beam
• Haunches can be defined on the cross beams, columns, and cantilevers in the area of the frame corners

• The loads generated by snow, wind and the self-weights of the roof and wall structures are determined automatically with consideration of the defined building geometry. When the user changes the structural system subsequently, these loads are adjusted automatically
• The wind and snow loads are determined in accordance with the specified location of the building
• Automatic inclusion of the self-weight of the steel sections
• The user can enter user-defined load cases in addition
• Automatic generation of the load case combinations
• Concentrated load (transverse/longitudinal), moment and line load
• Definition of corbel loads

The program maps automatically all necessary combinations of actions in accordance with the safety concept set forth in Eurocode 0. Either the elastic or plastic cross-sectional resistance is verified. The load combinations decisive for the design are calculated in a second-order analysis with consideration of the initial sway imperfection. Furthermore, the verification of the system’s load-bearing capacity is performed using the equivalent member method either in accordance with section 6.3.3 Annex A or B or with section 6.3.4.

In connection with the verification of the serviceability, the program determines the deformations of the structural system as well as the relative deformations of the individual components. The user must specify the design situation that should be used for the serviceability verification.

Output profile:

• Pre-set brief output or user-defined scope

Result graphs:

• Internal forces: N, M, Q
• Deformations: vx ; vz
• Stresses: σ,x ; τ,z ; σ,v
• Utilization Eta: n,el ; n,pl ; n,stability

• PDF
• Word
• Printer

• Butt Plate Joint
• Steel Frame Corner
• Steel Column Base
• Pocketed Steel Column Base
• Isolated Foundation
• Pad Foundation
• Lateral Torsional Buckling Analysis
• Framework

• ASCII-file
• FRILO XML

• Word
• PDF
• FRILO XML
• strut-and-tie model XML

• DIN EN 1993-1-1
• ÖNORM EN 1993-1-1

• DIN EN 1991-1-3:2019
• DIN EN 1991-1-4:2010
• ÖNORM EN 1991-1-3:2018
• ÖNORM EN 1991-1-4:2019