Download and Demoversion

Structural Engineering


You want to get to know new programs?

After downloading the desired installation package

  • iTWO structure fem- Starting and Expert package building construction slab as well as Revit Add-Ins
  • RIBcad - ZEICON for formwork and reinforcement plans
  • RIBfem - Finite Elements in Building and Bridge Construction
    (TRIMAS, PONTI, PONTI compositeconcrete, PONTI compositesteel)
  • RIBgeo - Geotechnical member design
    (RTpipe, RTpile, RTslope, RTlimes, Nagelwand, RTgabion, RTpinwalls, RTwalls, RTgeo)
  • RIBtec - Structural member design
    (BALKEN, BEST, FERMO, RTfooting, RTtimber, RTgluelam, RTslab, RTzwax, RTcdesign, RTool, RTec, RTec EXPERT)
  • abacus - abacus software (GAUS, MOST, STUR)

you can install individual programs and run them with limited functionality in "demo mode".

Important: If you want to test programs in practice right away, you are welcome to use our special PPP offer.

You are also welcome to contact your direct contact person (see below).

You want to update programs?

You can use the downloads to update your existing program versions if the versions described in the installation environment or under "News & Changes" match the licenses available on your computer. This means that all improvements within an existing annual program generation, for example from version 17.0 build 04.03.2017 to build 07.06.2017, are available to you as an update free of charge.

Note: If the program versions do not match, it is usually necessary to upgrade the respective program application for a fee.

Please check before installation whether the licenses available on your computer allow the use of the latest versions from the download.

Important notes on program changes


RTwalls V22.0  

When determining the number of contact points per m of the interlock, the load width was not applied correctly, which meant that the result was on the unfavorable side when the load width was > 1 m. The bug is fixed in RTwalls V22.0 Build 15022023



The design in accidential situation was not  performed correctly. The error is fixed within the Update V22.0 State 2023-03-21

FERMO and BALKEN:Version 22.0 Build 13042022: 
Deformations in cracked situation (ZII)  are calculated too large.due to a wrong estimation of the bending stiffness in cracked situation The bug is fixed in Version 22.0 Build 17052022    

License Management
DVD request

As an alternative to the download, we will gladly send you a DVD.

Please give us a call: +49 711 7873-157

Or send us an email to request a DVD.


Contact & Hotline

Solutions for structural engineering and test engineers

For questions on events

Support for structural engineering