Knowledge Base


Why Dlubal Software?


  • More than 45,000 users in 95 countries
  • One software package for all application areas
  • Free support provided by experienced engineers
  • Short learning time and intuitive handling
  • Excellent price/performance ratio
  • Flexible modular concept, extensible according to your needs
  • Scalable license system with single and network licenses
  • Proven software used in many well-known projects


Receive information including news, useful tips, scheduled events, special offers, and vouchers on a regular basis.

  1. Soil Parameters

    Determination of Bearing Resistance with "Drained" and "Undrained" Soil Conditions

    The RF-/FOUNDATION Pro add‑on module designs single foundations (foundation plates, bucket and block foundations) for all support forces arising in the RFEM/RSTAB model. The geotechnical designs are performed according to EN 1997-1.
  2. Figure 01 - Structural System with Loads

    Design of Foundation Rotation

    Using RF-/FOUNDATION Pro, it is possible to perform geotechnical design according to EN 1997‑1 [1] for single foundations. The following article explains the design of highly eccentric loading in the foundation core according to DIN EN 1997‑1, A 6.6.5 (see [3]).

  3. Figure 01 - Activating Ground Water Level for Soil Profile

    Influence of Ground Water Level on Design in RF-/FOUNDATION Pro

    Using RF-/FOUNDATION Pro, it is possible to perform geotechnical design according to EN 1997‑1 [1] for single foundations. Subsequently, the program displays detailed information about the influence of the ground water level on the selected design according to EN 1997‑1.

  4. Figure 01 - Data for Determining Allowable Soil Pressure

    Determining Bearing Resistance According to EN 1997-1

    In addition to the reinforced concrete design according to EN 1992‑1‑1, RF‑/FOUNDATION Pro allows you to perform geotechnical designs according to EN 1997‑1.

    In RF‑/FOUNDATION Pro, the design of the allowable soil pressure is performed as a ground failure resistance design. If you select CEN as National Annex, you have two options for defining the ground failure resistance. First, you can directly specify the allowable characteristic value of the soil pressure σRk. Second, there is also the option to analytically determine the bearing capacity according to [1], Annex D.

  5. 1 - Time-Dependent Settlement Components [2]

    Settlement Calculation of Single Foundations According to DIN 4019 in RF-/FOUNDATION Pro

    For the serviceability limit state design according to Section 6.6 of Eurocode EN 1997‑1, settlement has to be calculated for spread foundations. RF‑/FOUNDATION Pro allows you to perform the settlement calculation for a single foundation. For this, you can select between elastic or solid foundation. By defining a soil profile, it is possible to consider several soil layers under the foundation base.

  6. Soil Profile in RF-/FOUNDATION Pro

    Soil Profile

    As of the program version x.06.1103, it is possible to enter a soil profile in RF‑/FOUNDATION Pro. This provides you the advantage to set several soil layers with different soil parameters above and under the foundation base. For entering the soil layers, there is a library with various soils that can also be extended with user‑defined soils. The user-defined soil profile is shown in an interactive information graphic. Any change, for example a soil thickness modification, is reflected in the graphic immediately.

  7. Approach 2* According to EN 1997-1 in RF-/FOUNDATION Pro

    Approach 2* According to EN 1997-1

    Due to RF‑/FOUNDATION Pro, it is possible to perform the geotechnical design of single foundation according to EN 1997‑1 in RFEM 5 or RSTAB 8. Depending on the National Annex preset in the add‑on module, you can determine bearing resistance using Approach 2 or 3 in compliance with EN 1997‑1 up to the Version x.04.0108.

  8. New Copy Function in RF-/FOUNDATION Pro

    New Copy Function

    When calculating foundations according to EC 7 / EC 2, usually different types or sizes of foundations are used in one object. However, boundary conditions like the soil parameters, the materials for foundations, concrete covers, and the load combinations selected for design as a rule remain the same for all foundations.

Contact us

Contact Dlubal Software

Do you have questions or need advice?
Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.

(267) 702-2815

Customer Support 24/7

Knowledge Base

In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.

First Steps

First steps

We provide hints and tips to help you get started with the main programs RFEM and RSTAB.

Powerful and Capable Software

“I think the software is so powerful and capable that people will really value its power when they get properly introduced to it.”