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 & Hotline



Solutions for structural engineering and test engineers

Support for structural engineering