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. Figure 01 - Structural System and Loading

    Comparing Critical Load Factors for Lateral-Torsional Buckling According to Different Methods and Modules

    The critical factor for lateral-torsional buckling or the critical buckling moment of a single-span beam will be compared according to different stability analysis methods.
  2. Eccentric Nodal Loads in RF-/FE-LTB

    Eccentric Nodal Loads

    There are two ways to specify eccentric nodal loads in RF‑/FE‑LTB. First, the nodal load has to be applied in the right direction. Then, you can assign either the resulting torsional moment or the eccentricity.

  3. 1 - Beam with Torsional Restraints Subjected to Uniform Load (Source: [3])

    Torsion Design of Glulam Beams

    Long-span glued-laminated beams are usually supported by a reinforced concrete column with torsional restraints.

  4. RF-/FE-LTB: Imperfections


    Stability analysis according to the second‑order theory requires imperfections to be applied.

  5. Critical Load Factor of Tapered Steel Frame 2: Calculation in RF-/FE-LTB

    Critical Load Factor of Tapered Steel Frame 2: Calculation in RF-/FE-LTB

    The stability analysis of the steel frame described in my previous post can also be performed in RF‑/FE‑LTB according to the Equivalent Imperfection Method. The following post describes how to calculate or determine the critical load factor.

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.”