In ConcreteSection, loads are applied to the model in a service load case. Use the Service Case drop-down in the tab to select the active case. For better visibility and easier selection, rotate the view to get a 3D perspective of the model.
To apply loads to the cross-section, click the Apply Loads command in the tab or right-click and select Apply Loads from the context menu. After applying the load, specify the axial force and bending moments about the X- and Y-axes in the tab. A positive axial load causes compression, and positive moments follow the right-hand rule. Note: Only one load may be applied per Service Case, and it is assumed to act through the section’s centroid. Note: The Stress Results and Moment Unity tabs are unavailable unless at least one load is present in the model.