After each construction stage, the finite element analysis produces results that can be utilized to ensure structural compliance with codes. To create the stages correctly, users must understand the underlying logic. At the start of the stage construction analysis, all structural elements are in an unconstructed state.
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Please follow the instructions provided below to construction stages. |
| 1 | Navigate to Loading > Construction Stage |  Image Added Image Added Image Added Image Added |
| 2 | Begin by defining a construction stage and then enter the preceding stage for that construction stage. |
| 3 | Ensure that the "Prior Stage" cell is “Null” as the first stage of the construction process does not have a preceding stage. |
| 4 | To assign the data in the "Construction Method" and "Filter by load type cells" click on the three dot-icon and select the appropriate option from the combobox. |
| 5 | Enter the data as follows for 1st Stage: Name: BridgeConst Prior Stage: NULL Construction Method: None Load Type: Dead Active: Yes |
| 6 | Please repeat steps 2 through 5 to define all of the construction stages in the project. |  Image Added |
| 7 | | Expand |
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| In Staged Construction Analysis, when joints are activated they normally enter at the location that was initially given to them. Joints sometimes need to become active in a location relative to the deformed structure of the model, rather than in an exact position known ahead of time. The construction method option of construction stages specifies how to place a joint relative to the deformed location of other joints. In Precast I Girder Bridges, deck formwork deforms and follows girder displacements. Therefore deck nodes should be constructed by shifting the node down to match the translational displacement of the girders nodes. This can be achieved with the Construction Method = Equal option of construction stages.  Image Added |
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| 1 | Navigate to Construction Stage under Loading on the tree view. |
| 2 | Copy Stage, Time Dependent and AASHTO N-3N from model inputs and paste into OpenBrIM. |
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Construction Stage |
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Stage | Time Dependent | AASHTO N-3N |
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| BridgeConst NULL None Dead Yes
GirderErection BridgeConst None Dead Yes
SIPFormConst GirderErection None Dead Yes
DeckConstPour SIPFormConst None Dead Yes
DeckConstHard DeckConstPour Equal Change Yes
BarrierConst DeckConstHard None Imposed Dead Yes
FutureWearingStage BarrierConst None Wearing Surface Yes
LiveLoadStage FutureWearingStage None Live (Vehicular + Impact) Yes
WindonStructureStage FutureWearingStage None Wind on Structure Yes
TUExpStage FutureWearingStage None Temperature Yes
TUContStage FutureWearingStage None Temperature Yes
BrakingStage FutureWearingStage None Braking Yes
CentrifugalStage FutureWearingStage None Centrifugal Yes
WindonLLStage FutureWearingStage None Wind on Live Yes
CollisionStage FutureWearingStage None Vehicular Collision Yes |
| | Code Block |
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| BridgeConst 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
GirderErection 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
SIPFormConst 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
DeckConstPour 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
DeckConstHard 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
BarrierConst 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
FutureWearingStage 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
LiveLoadStage 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
WindonStructureStage 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
TUExpStage 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
TUContStage 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
BrakingStage 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
CentrifugalStage 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
WindonLLStage 0.0000 NA 72.0000 80.0000 Include Include Include Include Include
CollisionStage 0.0000 NA 72.0000 80.0000 Include Include Include Include Include |
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| BridgeConst NULL NA
GirderErection NULL NA
SIPFormConst NULL NA
DeckConstPour NULL NA
DeckConstHard NULL NA
BarrierConst NULL NA
FutureWearingStage NULL NA
LiveLoadStage NULL NA
WindonStructureStage NULL NA
TUExpStage NULL NA
TUContStage NULL NA
BrakingStage NULL NA
CentrifugalStage NULL NA
WindonLLStage NULL NA
CollisionStage NULL NA |
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