Form: Beam Design Overwrites
Use the Design menu > Beam Design Overwrites command to overwrite beam design parameters for a selected beam object.
Select one or more beam objects and click the Design menu > Beam Design Overwrites command to access the Beam Design Overwrites form. On that form, select and enter data in the following two categories:
Cover Select from one of the three following options to set the concrete cover for the beam reinforcing steel:
From Section: Select this option if the cover should be as shown on the Beam Property Data form. This is the default setting.
From Preferences: Select this option if the cover should be as set in the Design menu > Design Preferences command.
Specified to Center of Steel: Select this option to explicitly locate the rebar by specifying the distance to the center of steel in the edit boxes.
Live Load Reduction Specify a factor to reduce the live load forces used in beam design. Most codes allow for live loads to be reduced based on tributary area calculations. The resultant forces in the selected beam objects will be multiplied by the Reduced Live Load Factor when used for design. The only forces affected will be those that result from load cases associated with load patterns with a type of REDUCIBLE LIVE, or load cases that have been user identified as REDUCIBLE LIVE using the button on the Load Case Data form.
The default value for the Reduced Live Load Factor is 1, which means that there is no reduction; a value of 0.75 would mean that the forces are decreased by 25%.
Design option. To ignore post-tensioning during design, check the Ignore PT When Designing This Beam check box.
Note: Beam information can be accessed by expanding the tree under Objects > Line Objects on the Model tab in the Model Explorer window.