Prestressed Reinforced Concrete Girder

• Concrete grades specified in the standard from C30/37 to C100/115 for the girder and C16/20 to C100/115 for the cast-in-place concrete supplement
• Optional definition of a gradual application of the pre-tensioning force
• Optional definition of reduced material safety coefficients for pre-cast components
• Optional consideration of a thermal treatment
• Increased compressive strength of the young concrete at the time of tensioning force application is possible

Girder types

• Girder with parallel flanges
• Symmetrical and asymmetrical girders with saddle or groove
• Single-pitch roof girder

Structural systems:

• The user can calculate the girder in the final state and during its storage, as a single-span girder or as a cantilevered single-span girder
• For the erecting state, the user can examine a separate structural system aligned to the location of the suspension points
• The structural systems that result from auxiliary supports installed during the casting of the cast-in-place concrete complements are automatically taken into account in the calculation of the cross-sections

Shapes of cross-sections

• Rectangular cross-sections
• T-beams
• Two-webbed T-beams
• Layered cross-section
• The calculation of a single cross-section is also possible

Optional cross-section complement

• Solid slab
• Solid slab with pre-fabricated formwork
• Complement with additional layers

Optional cut-outs:

• circular
• rectangular

• Uniformly distributed linear loads
• Concentrated loads and moments
• Trapezoidal loads and triangular loads
• Loads can apply simultaneously or alternatively

• Bending with longitudinal force (including resisting tensile force coverage)
• Shear resistance, for cast-in-place complements including the bearing capacity of the joints
• Lateral buckling in the installed state and in the erecting state (method by Stiglat and Mann)
• Determination of the tensile splitting reinforcement
• Anchoring of the prestressing reinforcement
• Dimensioning of cut-outs according to DAfStb booklets 399 and 599

• Concrete stresses, steel stresses (prestressed steel, reinforcing steel)
• Crack width (loading, minimum reinforcement), verification of the decompression, if required
• Deflection for a selectable load combination of the SLS with consideration of state II including tension stiffening and shrinkage
• Changes in length due to temperature, creep and shrinkage

• Multi-layer pre-tensioned reinforcement with insulation, if applicable
• Multi-layer untensioned reinforcement
• It is assumed that the reinforcement runs in a straight line in parallel to the upper or lower flange.

• Output of various verifications in tabular or graphical form and with intermediate results is possible
• Verifications in the ultimate limit state
• Verifications in the serviceability limit state

• ASCII file

• DIN 4227 T.1
• DIN 1045-1