Caltrans BAG

Form:  BAG - Bridge Analysis Generator

The BAG - Bridge Analysis Generator form is a preprocessor that generates a CSiBridge model to perform a response-spectrum dynamic analysis and a static analysis for a concrete bridge structure. BAG generates the structural model and loading functions using a minimum amount of geometric and structural input.

When the BAG - Bridge Analysis Generator form displays, use the commands on that form's File menu to begin the generation process.

• Click the File menu > New Model command and the Caltrans-BAG button to display the BAG - Bridge Analysis Generator, Control Data form with the following commands/buttons available:

  Command/Button	Action
  File menu
  New Model	Displays the BAG - Bridge Analysis Generator, Control Data form.
  Open	Displays the CSiBridge Model form. Use that form to locate a previously created bridge model file. Locate the subdirectory containing the file and then click on the filename to open the file.
  Save	Displays the CSiBridge Model form. Specify the location and filename for storing the bridge model.
  Save As	Displays the CSiBridge Model form. Specify the location and filename for storing the bridge model.
  Import Caltrans BAG Text File	Displays the Bag Text File form. Use that form to locate a text file in the format appropriate for importing into the BAG generator.
  Export Caltrans BAG Text File	Displays the BAG Text File form. Use that form to specify a location and filename for saving a bridge model file in a text file format.
  Export to CSiBridge	Exports the model to a CSiBridge compatible format and immediately displays the bridge model, as defined, in the main screen of CSiBridge.
  Show Output File	Displays the model output file.
  Exit	Closes the BAG - Bridge Analysis Generator form and returns to CSiBridge.
  Edit menu
  Undo	Undoes the previous action.
  Redo	Redoes the previous action.
  Cut	Removes the selected object and temporarily stores it on the Windows clipboard.
  Copy	Copies the selected object and temporarily stores it on the Windows clipboard.
  Paste	Pastes the temporarily stored object from the Windows clipboard to the specified location.
  Delete	Removes the selected object or data from the generator.
  Select All	Selects all objects or data.
  Insert	Inserts a record in the Span, Bents or Columns spreadsheet that is displayed when the command is used.
  Delete	Deletes the selected record from the Span, Bents or Columns spreadsheet that is displayed when the command is used.
  View menu
  Plan View	Displays the model in Plan View.
  Elevation 1 View	Displays the model in Elevation View.
  Elevation 2 View	Displays the model in Elevation View.
  3D View	Displays the model in 3-D view.
  Define
  Control	Displays the initial Control Data form.
  Geometry	Displays the initial Overall Geometry form.
  Span	Select from the drop-down list to display the required span data form:  Deck Span Data 1, Deck Span Data 2, or Deck Span Data 3.
  Bents	Select from the drop-down list to display the required bent data form: Pier Bent Data 1, Pier Bent Data 2, or Pier Bent Data 3.
  Columns	Displays the Pier/Column Type form.

   

• Click the File menu > Open command to display the CSi Bridge Model form. Use that form to locate a previously created bridge model file. Locate the subdirectory containing the file and then click on the filename to open the file. Edit the file using the BAG - Bridge Analysis Generator form.

• Click the File menu > Import Caltrans BAG Text File command to display the Bag Text File form. Use that form to locate a text file in the format appropriate for importing into the BAG generator. Edit the file using the BAG - Bridge Analysis Generator form.

• Click the File menu > Export Caltrans BAG Text File command to display the BAG Text File form. Use that form to specify a location and filename for saving a bridge model file in a text file format.