# 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

#### Wind Simulation & Wind Load Generation

With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.

The generated wind loads acting on these objects can be imported to RFEM or RSTAB.

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• ## Lateral-Torsional Buckling in Timber Construction | Examples 1

The article Lateral-Torsional Buckling in Timber Construction | Theory explains the theoretical background for the analytical determination of the critical bending moment Mcrit or the critical bending stress σcrit for the lateral buckling of a bending beam. The following article uses examples to verify the analytical solution with the result from the eigenvalue analysis.

• ## Lateral-Torsional Buckling in Timber Construction: Theory

Slender bending beams with a large h/w ratio and loaded parallel to the minor axis tend to have stability issues. This is due to the deflection of the compression chord.

• ## 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.
• ## 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.

• ## Torsion Design of Glulam Beams

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

• ## Imperfections

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

• ## 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.

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Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.

#### Customer Support 24/7

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

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

#### Powerful and Capable Software

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