Equivalent Frame - Edit menu

Tables:   Span Data, Slab Data, Beam Data, Support Data, Tendon Data, Point Load Data, Line Load Data, Area Load Data, Grid Line Data

The Edit menu commands can be used to complete the majority of tasks necessary to create and edit an equivalent frame. When finished entering data for any one command, you may typically move directly on to another command without first having to save or click any other buttons.

Note: All distance measurements associated with equivalent frames are saved internally as relative distances even though Absolute may be the selected Distance Type. Therefore, it is important that the Span Lengths be fixed before any other data types (slab, beams, etc.) are edited. If Span Lengths are altered after other data types have been input, the distances associated with the other data should be reviewed for validity.

Note: If a beam is present, the span will be designed as a beam and not as a slab in the equivalent frame. Also note that the material used in the slab-beam cross-section will be the slab material; the program will not generate an equivalent cross-section based on mixed materials.   

Note: If a transverse wall is present at either the bottom or top support, the torsional springs used to transfer the slab moments are assigned a large (rigid) stiffness.

Note: Tendons associated with a strip object are not automatically transferred to the equivalent frame Tendon Data table   

Note: If live pattern (skip) loading has been applied in the SAFE model using the Auto option or directly by the user, these patterns will be transferred on to the spans in the Equivalent Frame form when the equivalent frame is generated from a strip object. If the equivalent frame is new or the strip did not contain live pattern loads, and live pattern loads are required on the equivalent frame, they should be explicitly modeled using different load patterns.     

Note: Loads may be viewed in the display area by selecting a load pattern from the Currently Displayed Load Pattern drop-down list.     

Note: If live pattern (skip) loading has been applied in the SAFE model using the Auto option or directly by the user, these patterns will be transferred on to the spans in the Equivalent Frame form when the equivalent frame is generated from a strip object. If the equivalent frame is new or the strip did not contain live pattern loads, and live pattern loads are required on the equivalent frame, they should be explicitly modeled using different load patterns.     

Note: Loads may be viewed in the display area by selecting a load pattern from the Currently Displayed Load Pattern drop-down list.     

Note: If live pattern (skip) loading has been applied in the SAFE model using the Auto option or directly by the user, these patterns will be transferred on to the spans in the Equivalent Frame form when the equivalent frame is generated from a strip object. If the equivalent frame is new or the strip did not contain live pattern loads, and live pattern loads are required on the equivalent frame, they should be explicitly modeled using different load patterns.     

Note: Loads may be viewed in the display area by selecting a load pattern from the Currently Displayed Load Pattern drop-down list.     

Note: Grid lines on the Equivalent Frame form are located solely based on the distances specified in the Grid Line Data table; the grid lines are not “locked” to spans or supports, and changes to span data may result in grid lines moving relative to the equivalent frame.     

 

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