Equivalent Frame - Display menu

Form: Equivalent Frame Vertical Displacements, Equivalent Frame Forces, Equivalent Frame Axial Stress Contours, Equivalent Frame Design Reinforcing, Equivalent Frame PT Stress Check

Use the Display menu commands to display undeformed and deformed shapes, forces and axial stresses, and design reinforcement and post-tensioning stress conditions for the equivalent frame.

Click the Apply button to update the display and the table area. Move the cursor along the equivalent frame to display vertical displacements. Maximum and minimum displacements are shown in the lower left-hand corner of the display, and a table of vertical displacements is shown in the table area. This form will remain open until the Close button is clicked. This form need not be closed before opening any number of the other Equivalent Frame Display forms.

In the Component to Display area, choose one of the three following options: Moment; Shear Force; or Axial Force.

Click the Apply button to update the display and the table area. Move the cursor along the equivalent frame to display force components. Maximum and minimum forces are shown in the lower left-hand corner of the display, and a table of force components is shown in the table area. This form will remain open until the Close button is clicked. This form need not be closed before opening any number of the other Equivalent Frame Display forms.

Click the Apply button to update the display and the table area. Move the cursor within the equivalent frame to display axial stresses. Maximum and minimum axial stresses are shown in the lower left hand corner of the display, and a table of axial stress results is shown in the table area. This form will remain open until the Close button is clicked. This form need not be closed before opening any number of the other Equivalent Frame Display forms.

Click the Apply button to update the display and the table area. Move the cursor along the equivalent frame to display the total reinforcing required. The maximum reinforcing required is shown in the lower left-hand corner of the display, and a table of reinforcing results is shown in the table area. The reinforcing shown is calculated based on the defined combinations; combinations should be verified by clicking the Define menu > Load Combinations command (no “auto” combinations will be generated for nonlinear load cases). The reinforcing shown at any location is the total for the entire equivalent frame cross-section. This form will remain open until the Close button is clicked. This form need not be closed before opening any number of the other Equivalent Frame Display forms.

Note: Where a beam is present in the equivalent frame, the design will be done based on the assumption that the beam (T-beam when a slab is present) carries the entire load; the reinforcing reported will be for the beam only, and no design will be performed for the slab. When a beam is present, the reinforcing cover used in design is taken from the beam specifications and not from the slab. No torsion effects are included in the design.

Note: If tendon objects are present in the equivalent frame model, the required flexural reinforcing is the larger of the strength or stress reinforcement.     

Click the Apply button to update the display and the table area. Move the cursor along the equivalent frame to display the top and bottom demand/capacity ratios for the selected post-tensioning condition. The maximum ratio is shown in the lower left hand corner of the display, and a table of demand/capacity ratios is shown in the table area. This form will remain open until the Close button is clicked. This form need not be closed before opening any number of the other Equivalent Frame Display forms.

Access the Equivalent Frame form as follows

  1. Click the Tools menu > Equivalent Frame command to display the Equivalent Frame Models form.

  2. Then do one of the following:

    • Click the Add New EFM button

    • Click the Add New EFM From Strip Object button, the Add Copy of EFM button or the Modify/Show EFM button.

 

See Also

Equivalent Frame Feature