OpenBridge Modeler

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Contains commonly used tools for creating and manipulating bridge objects.

Table 1. Primary group
Tool name Description Shortcut

Used to manage and control project content within OpenBridge Modeler.  
Attach Tools

Used to attach and detach referenced models, adjust reference settings and select reference tools.  

Raster Manager
Used to control the display of one or more raster images in a DGN file view.  

Point Clouds
Used to manage the display of one or more point clouds in a DGN file view.  

Reality Mesh
Opens the Reality Mesh Attachments dialog, which is used to attach and manipulate reality meshes.  

Used to create, manage, and switch between models in the open DGN file.  

Level Display
Used to turn on and turn off levels in a model. Ctrl+E

Level Manager
Used to control level display and level symbology for the open DGN/DWG file and attached references.  

Used to review or modify the properties of an element(s), such as its geometry.  

Used to browse, construct, and enter key-ins.  

Toggle AccuDraw
Turns on/off AccuDraw, and the display of the AccuDraw Window, which is used to facilitate data point entry.  

Auxiliary Coordinates
Used to create, copy, delete, or import an Auxiliary Coordinate System (ACS) and to select ACS tools.  

Saved Views
Used to create, update, apply, import, and delete saved views and edit properties of saved views.

Saving a view allows you to quickly apply a view with specific attributes.


Used to attach cell libraries and activate different types of cells, if one is attached.  

Used to view markups made in an overlay file in Bentley Navigator. A markup can be annotation text, freehand redlining, pen and area highlighting.  

Used to display information related to what is selected in any of the tabs of the Explorer dialog.  

Window List
Used to display information related to what is selected in any of the tabs of the Explorer dialog.  
Table 2. Selection group
Tool name Description Shortcut

Element Selection
Used to select and deselect elements for modification or manipulation. The set of selected elements is called the selection set.  

Select All
Selects all elements in the design. Ctrl+A

Select None
Deselects all elements in the design.  
Fence Tools

Place Fence
Used to place a fence.  

Modify Fence
Used to move a fence or modify one of its vertices.  

Manipulate Fence Contents
Used to move, copy, rotate, mirror, scale, or stretch fence contents, which are defined by a fence and (except for stretching) the Fence (Selection) Mode.  

Delete Fence Contents
Used to delete the fence contents, which are defined by a fence and the Fence (Selection) Mode, which determines what constitutes the contents of a fence.  

Drop Fence Contents
Used to break up the contents in a fence into their components.  

Save Fence Contents
Used to copy or move the contents of the active fence to a new DGN or DWG file.  

Named Boundaries
Used to manage named boundaries and named boundary groups.  

Locks selected elements. The attributes and location of a locked element cannot be changed. Locking is useful for preventing accidental element manipulation. If you try to manipulate a locked element, OpenBridge Modeler beeps to alert you that the element is locked. Ctrl+L

Unlocks selected locked elements. Each unlocked element can be manipulated. Ctrl+M

Bring to Front
Brings the selected element to the front of the view display. Ctrl+L

Used to cut selected elements to clipboard. Ctrl+X

Used to copy selected elements to clipboard. Ctrl+C

Used to paste elements from clipboard. Ctrl+V

Paste Special
Used to select the data type and open the Paste OLE dialog where a special display format can be applied to the contents of the Clipboard.  
Table 3. Bridge Setup group
Tool name Description

Used to import external civil data such as road alignment.

Used to import external terrain data into your OpenBridge Modeler design.

Bridge Wizard
Used to parametrically generate a 3D bridge model with minimal input.

Add Bridge
Used to add a new bridge to the OpenBridge Modeler design.

Add Unit
Used to add a new bridge unit. The new unit will be the active unit.

Used to select an alignment in your project as the active alignment for the active bridge unit.

Used to specify a new station along the current bridge alignment for the start of the active bridge.

Used to select a terrain model as the current active terrain.

Add Multi-Units
Used to add mutliple bridge units to the current bridge.
Table 4. SupportLine group
Tool name Description

Place Middle Point
Used to place a supportline by the supportline's midpoint at a specified station.

Place Parallel
Used to place a supportline parallel to an existing supportline.

Place Multi
Used to place multiple supportlines which can have similar values or individually edited values.

Used to move or rotate an existing supportline to the position or orientation a previously placed target line.

Opens the Modify Multi Supportlines dialog, which is used to modify multiple supportlines in the active unit.
Table 5. Superstructure group
Tool name Description

Place Deck
Used to place a deck template over supportlines.

Place Advanced Deck
Used to place advanced decks for cast-in-place box bridges.

Beam Layout
Used to layout beam lines for spans between supportlines.

Place Beam
Used to select a beam definition for a beam layout.

Place Stiffeners
Used to add transverse stiffeners to a steel girder superstructure.

Place Cross Frames
Used to add steel cross frames to a steel girder superstructure.

Place Diaphragms
Used to add concrete diaphragms between beams on concrete girder and slab type bridge.

Assign Superelevation
Used to assign a superelevation section to a bridge deck.
Place Segmental

Place Span by Span
Used to place segmental bridge units span-by-span.

Used to place a balanced cantilever segment from a template.

Used to automatically place cast-in-place closures between all free cantilever ends on a balanced cantilever bridge unit.

Used to generate an on-screen report of the balanced cantilever segments in each span of the active bridge unit.

Opens the Edit Constraints dialog, which contains a list of all templates used in the segmental bridge and a link to edit the constraints for each.
Table 6. Substructure group
Tool name Description

Place Pier
Used to place pier templates on pier lines.

Place Abutment
Used to place abutment templates on supportlines.

Place Custom Pier
Used to place custom pier elements from a cell library on existing pier lines.

Place Custom Abutment
Used to place custom abutment elements from a cell library on existing pier lines.

Place Wingwall
Used to place wingwall templates on abutments.

Place Bearing
Used to place bearings under beams or deck on existing pier lines.

Place Excavation
Used to parametrically add an excavation volume to a terrain model.
Table 7. Auxiliary group
Tool name Description

Place Point
Used to place an auxiliary cell object by point.

Place Path
Used to place a series of the same cell objects at regular intervals along a specified path.

Place Barrier
Used to place barrier templates.