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The bridge modeler provides design templates for conventional deck-section types, including flat slab, concrete box girder, and steel girder with a cast-in-place
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deck.
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Modeling
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decks
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not
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available
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through
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the
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bridge
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modeler
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must
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be
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done
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with
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direct
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methods.
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The
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advanced
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modeling
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features
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available
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for
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direct
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bridge-deck
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modeling
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include
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the
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following:
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Spine
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model
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- Use
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- the
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- to
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- develop
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- the
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- bridge
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- cross
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- section.
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- Model
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- the
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- bridge
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- superstructure
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- using
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- frame
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- elements
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- to
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- extend
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- the
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- cross
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- section.
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- For
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- complex
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- bridge
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- profiles,
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- CSiBridge allows
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- users
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- to
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- create
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- bridge
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- geometry
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- using
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- dummy
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- bridge
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- deck
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- sections,
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- then
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- replace
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- the
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- dummy
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- sections
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- with
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- a
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- section from
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- the
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- section
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- designer.
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Area
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model
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- Use
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- frame
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- elements
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- to
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- develop
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- the
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- bridge-deck
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- cross
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- section.
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- Create
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- area
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- elements
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- by
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- extruding
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- frame
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- elements
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- along
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- bridge
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- layout
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- lines
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- with
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- the
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- Edit
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- >
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- Extrude
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- >
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- Extrude
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- Lines
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- to
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- Areas
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- option.
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- Users
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- may
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- specify
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- an
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- advanced
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- extrusion
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- path
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- using
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- custom
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- coordinates
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- or
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- a
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- predefined
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Solid
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model
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- Use shell elements to develop the bridge deck cross section.
- Extrude the shell elements into solid elements by extruding the cross section along bridge layout lines using the Edit > Extrude > Extrude Areas to Solids option.
Obtaining bridge superstructure forces and stresses
When a bridge is modeled directly, bridge object force and stress diagrams are no longer created automatically. In this case, users should define multiple section cuts along the bridge superstructure to obtain bridge force and stress diagrams. This is known as post-processing section-cut results.
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