An analysis may require parameters to be redefined across several stages to ensure the stability of the bridge. To achieve this, changes to various elements can be defined based on a specific sequence and stage.
-A common scenario is that girders without cross-frames and bracings can sometimes be in an unstable condition, which may cause the Finite Element Analysis (FEA) to fail or remain incomplete.
If the bracings are constructed after the erection of the girders, the Bearing Fixity Change section can be utilized to successfully complete the analysis.
For the objects that can be defined in this section, please refer to the related page for detailed explanations of the parameters.
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