How to define super elevation of super structure deck slab?
Regarding the construction method, the deck slab was modeled using the Curve Library. I am interested in understanding how to model the median section and the protective wall section as a level section.
As for the modeling method, the Curve Library / User Section Mode can be used to model the superstructure (slab) through Vertex Group settings.
In order to set the level section for modelling protective walls on the left and right sides of the slab, in UserSection, the starting point of the level section can be set inward, requiring the cross-section to consist of two or more vertices.
Therefore, the cross section must be redrawn so that the section for installing the protective wall can be separated.Therefore, it is necessary to redraw the cross-section to allow for the separation of the section for the modelling of protective walls.
Following this, we will proceed with an explanation using the example of Case-1, based on the modeling method for the creation of protective walls.
In the user section, the Vertex has been configured so that the starting point of the Level section can be set to the inside.
1. Group two vertices into a Vertex Group so that they can account for the effect of superelevation.
2. In the Vertex Group settings window, check “Master” for the vertex that serves as the reference for superelevation.
3. Even if superelevation is applied, check "Dependency" for the other vertices to ensure they descend by the same value as the Master Vertex in the z-axis direction.
4. Set the Vertex Group in the same way for the protective wall section definition on the other side.
The next step is the process of assigning the previously set Curve Library to Assembly Unit Mode by incorporating superelevation information.
1. Assign Curve Library in Assembly Unit Mode.
2. Enter superelevation information in the Property 2nd tab.
3. Select the Deformed option and input the distance values from the center to the left and right, so that superelevation can be applied from the median barrier section onward.
If you assign the Assembly Unit Library to an alignment containing superelevation information in Base Mode, you can check the results of applying superelevation as shown below.