Truss Bridge Template

Truss Bridge workflow enables you to:

• Generate a 3D model of a Truss Bridge — including trusses, arches, hangers, cables, bearings, substructure, and deck — parametrically, and export it to dgn/dxf/ifc files.

• Create a parametric FEA model for the entire bridge system, including truss members, arch elements, cable elements, and supporting substructure.

• Apply loads for FEA:

  • Surface, line, and point loads on structural elements.

  • Dedicated truss element loads.

  • Influence-surface based live loads, braking, and centrifugal forces (HL93, Legal Trucks, Permit Trucks, Railroad Cooper E80, user-defined vehicles).

  • Wind loads on structure and wind on live load based on AASHTO.

  • Uniform temperature loads.

  • Tendon stressing for pier cap and column tendons.

  • Prestressing and pushover loads.

• Create Staged Construction Models:

  • Truss member erection sequence including gusset-plate bolted connections.

  • Arch element and hanger erection.

  • Cable stressing and sequential tensioning for pylon cables and truss cables.

  • Deck pouring sequence in transverse and longitudinal directions (truss-bridge specific casting configuration).

  • Deconstruct arch, truss, cable, deck, and substructure components for rehabilitation.

  • Add/remove temporary supports.

• Run time-dependent staged construction analysis in your web browser with creep, shrinkage, and relaxation effects.

• Design and Load Rate truss members and supporting substructure following AASHTO and Manual for Bridge Evaluation.

• Export the finite element model to LARSA 4D, CSI Bridge, or Midas for comparison with OpenBrIM.FEA.

• Generate parametric 2D drawings (plan, elevation, framing, abutment, foundation, vertical clearance) and export to dgn or dxf.

With this workflow, whenever you modify a bridge component parameter or alignment, all associated results/reports automatically update — showcasing parametric bridge engineering in the OpenBrIM Platform.

Please refer to the following pages to understand the meaning of each parameter for each bridge component and define them accordingly.