Composite steel box girder

Option composite steel-concrete box section for TRIMAS® fem and PONTI®


  • Cross-section classification
  • Determination of secondary effects
  • Load capacity analyses
  • Serviceability analysis
  • Fatigue analysis
  • Design of bond dowels
  • Cross-section variations
  • Graphical representation of cross-section values and design results

Benefits of RTcompositeSteelBox

    The programme component RTcompositeSteelBox fem supports the calculation and design of spatial box girder systems of structural steel, composite steel-concrete or reinforced concrete bridges and in particular provides the following advantages:

    • Graphic-oriented surface during design with interactive cross section optimisation
    • The calculation / design of the composite girders is performed according to the overall cross section method
    • Simple acquisition of the system, cross section and load histories
    • Consideration of forces of cracking in the concrete chord
    • Automatic evaluation of secondary effects resulting from creep and shrinkage
    • Powerful and economic design according to DIN technical report 104 with a clear result graphic and specific detail information
    • Document output in RTprint / RTF format in compliance with the user’s requirements

    Contact sales structural engineering

    Silke Bauer
    +49 711 7873-157

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    Solutions for structural engineering and test engineers

    Support for structural engineering