Construction If the construction of girders and cross frames needs to be divided into multiple stages, this component can be utilized. However, during the typical design process of steel I-girder bridges, a detailed analysis of the erection sequence for girders and cross frames is usually not necessary. Engineers who are responsible for girder erection typically conduct this detailed analysis after the design processdone in several stages (or, in other words, if segmental girder construction is required for various purposes), this object can be used.
Girder Erection
Is Closureit a closure segment?[Yes/No]: Choose 'Yes' if the closure segment station information has been entered. For the closure segment, “Cast Stage” and “Stiffness Stage” information is collected since the load is applied first, and then stiffness is gained. For other segments, stiffness and weight are applied at the same stage, so only one stage is selected.
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Age of Girder at Erection(Day): This information is used to calculate the tendon losses in the code check object, or it can be utilized if the user decides to run a time-dependent staged construction analysis with CIB-FIB curves.
Girder Self Weight Factor: The Girder Self-Weight Factor is a parameter used to adjust the contribution of a girder's own weight to the overall structural load calculations. This factor allows for the scaling or modification of the girder's self-weight in finite element analysis (FEA).