Surface Plane

[RMohareb]

Hi @Potato

Your idea of cutting a solid to match the geometry for the short match technique, commonly used in segmental bridge construction, is interesting.

However, I would recommend using a two-point adaptive family instead of cutting the solid directly. This method offers greater flexibility and accuracy, especially for complex bridge alignments.

Here’s how it works:

• The two-point adaptive family is driven by two reference points:

  

  • Point A represents the bridge cross-section (typically the bulkhead), and should be oriented perpendicular (90 degrees) to the segment’s centerline.

  • Point B should be aligned perpendicular to the bridge alignment, ensuring correct positioning along curves and transitions.

• Additionally, it’s important to rotate the cross-section so that it remains perpendicular to the vertical profile — this ensures accurate placement and fabrication-ready geometry.

  Rotate Element on Z axis perpendicular curve - #9 by RMohareb

  
  

Place families perpendicular to a curve

Hi, we have the same problem when we model bridge and tunnel When modeling linear structures like bridges and tunnels, the process is typically divided into two main steps: 1. Determine Placement Locations and Coordinate Systems First, extract the placement points and corresponding coordinate systems along the alignment curve. You can use the appropriate Dynamo node to achieve this — it will give you both the location and the local orientation (coordinate system) at each point along the curv…

Rotate Adaptive 3 Points Family arround X-Axis and Z-Axis

hi @Cagatay as you host ref. point into the adaptive point to rotat xy plane(about z) you need to add another refre. point to rotat in XZ plan. [image] to calculate the rotation angle use this node from “BrimMohareb_2023” [image] Three_point_adaptive.rfa (672 KB) and here is a example

This method aligns well with the short match technique and can be integrated easily into a parametric or automated BIM workflow using Revit and Dynamo.

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I also have a presentation where I demonstrate how to:

• Model segmental bridges in Autodesk software.

• Extract construction-ready data for on-site fabrication of segments.

• Automatically generate 2D drawings from the 3D model, suitable for production and documentation.

https://www.autodesk.com/autodesk-university/class/Automated-Linear-Structural-BIM-2019

"BriMohareb_XXXX" Package for RevitXXXX Thread

This packedge use Dynamo Revit_2023 as plateform to integrating Revit_23, Civil3d_23 , Autocad, sofistik_2018, sofistik_2023 and Add extra geometry nodes to dynamo through API. It help bridge and tunnel engineers to create and Automate automate model and design. Also makes it possible to create complex bridge and tunnel elements by using Adaptive family [image]