Rectangular and Strip Reinforced Concrete Footing


New features of RTfooting

In addition to the adaptations to Windows 11, the following functions are available in the program RTfooting in the basic version as an extension:

  • For fiberglass-reinforced foundations, the shear force design is performed according to the more accurate verification of M. Kurth / J. Hegger and reference is made in the output to the corresponding approval of ComBAR according to EN 1992-1-1.
  • In the case of sleeve foundations, the self-weight under the influence of water levels is now taken into account exactly and output in a verifiable form.
  • The settlement calculation for inclined and off-center loading is performed according to the general approximation method described in DIN 4019 in Section 10.3.1.
  • To record the necessary parameters of the foundation soil, several horizontally oriented soil layers with different soil properties can be defined
  • In the case of a circular or polygonal foundation slab, a substitute rectangle is used for the calculation
  • The calculation is based on the soil stress diagrams of Boussineq for the elastically isotropic half-space, which have been prepared by Steinbrenner, Jelinek, etc. for practical use and are available as influence coefficients for soil stress in curves in DIN 4019 Appendix A.
  • The settlement influence depth (limiting depth) is determined automatically according to DIN 4019 Chap.9. This may be assumed to be the depth at which the vertical additional stress from the mean settlement-effective load is 20% of the effective vertical initial stress of the soil. Alternatively, the depth of influence may be specified by the user.
  • The consideration of an eccentricity in y-direction is done according to DIN 4019 chap.11. The angular deformation is calculated as a result of the moment around the y-axis.
  • The magnitude of the settlement is influenced by the determined bearing pressure, by the embedment and limiting depth and by the stiffness number. These parameters can be specified variably in RTfooting.

The program FUNDA for foundations and the program BEST for column design of RIB are proven basic applications in our office. In addition to the well-known good quality of the results, the new operation and the clear and designable printout are convincing. We are glad to use the effective load transfer from BESTf or foundations. We have been using BEST successfully for more than 30 years and have accompanied the development with pleasure.

Dipl.-Ing. Wolfgang Jenisch, Lauterbach



  • Modern interface with ribbon, quick access toolbar & property tables with an overview at a glance
  • Extension of FUNDA for the design of strip foundations
  • Independent language setting DE, UK & CZ for the input and output lists
  • Extended load transfer from BEST / HOST & STUR software
  • Automatic load combination and generation of design sections
  • Input of line loads
  • Soil mechanics analysis and determination of soil pressures with double eccentricity according to DIN 1054, or EN 1997-1 with national annexes for DE, AT & SK/CZ
  • Punching shear check for circular and rectangular connected supports according to DIN 1045, DIN 1045-1 or EN 1992-1 with national annexes for DE, AT, SK/CZ and UK for different slab geometries
  • Reinforced concrete design according to DIN 1045, DIN 1045-1 or EN 1992-1 with national annexes for DE, AT, SK/CZ and UK for single load cases and load combinations
  • The design according to old standards supports "existing constructions"
  • Specification of different water horizons and soil layers
  • Input of the load directly at the support connection as well as any point or as surface load on the slab with transfer of support loads
  • Option for extension to block and sleeve foundations as well as for circular and polygonal foundations
  • Determination of the reference line position for an open gap and verification of bearing capacity and sliding stability


RTfooting is a versatile structural engineering programme which provides the following advantages:

  • modern user environment with ribbon bar, quick acces bar and property grids for an overview at one glance
  • rc-design according to old design codes for the refurbishment of structures
  • fast and efficient familiarisation with the help of online support and manual
  • graphics with sensitive elements and chain dimensioning as well as immediate indication of all modifications
  • clear control program, program configuration and selection of localization
  • usage of templates

RTfooting is a thoroughly proved foundation program which can be applied both for the solution of standard tasks and for particular problems in foundation design.


Titelbild: Shutterstock_664882213, RIB Software SE

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