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Fx (Axial Force): Represents the force along the girder's longitudinal axis. For example, a positive Fx indicates tensile forces, while a negative Fx indicates compressive forces.
Fy (Shear Force in the Y-Direction): Represents the transverse shear force acting perpendicular to the girder's length.
Fz (Shear Force in the Z-Direction): Represents the vertical shear force acting in the vertical plane of the girder.
Mx (Torsional Moment): Represents twisting along the girder's axis.
M_y My (Bending Moment about the Y-Axis): Represents major-axis bending, typically caused by vertical loads.
Mz (Bending Moment about the Z-Axis): Represents minor-axis bending, typically caused by lateral forces.
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