# 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
• 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.

• ## Timber Column Design per the 2018 NDS Standard

Using the RF-TIMBER AWC module, timber column design is possible according to the 2018 NDS standard ASD method. Accurately calculating timber member compressive capacity and adjustment factors is important for safety considerations and design. The following article will verify the maximum critical buckling in RF-TIMBER AWC using step-by-step analytical equations per the NDS 2018 standard including the compressive adjustment factors, adjusted compressive design value, and final design ratio.

• ## Digital Trends in Structural Design

Digitization in construction is progressing with increasing dynamics. Structural engineers, a smaller group in the construction industry, are not always regarded as engineers who immediately jump on all new trains. Often for good reason. Not infrequently, this is the reason why topics such as the application of the BIM method are not yet the standard here. However, the past few years have shown that a rethink is beginning and new digital trends are openly absorbed and applied.

• ## Coupling Members with Surfaces in RFEM

Pay particular attention to connection points of members and surfaces when you deal with mixed systems because not all internal forces can always be transferred without difficulty at the coupling location.

• ## 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.

• ## Calculating Timber Panel Walls | 3 Floor Plan

This article shows the effect of the different stiffnesses of the timber panel walls on the floor plan.

• ## Shear Deformations of Framework Structures in Timber Construction

In current literature, the formulas to determine internal forces and deformations manually are usually specified without considering the shear deformation. Especially in timber construction, the deformations resulting from shear force are often underestimated.

• ## Calculating Timber Panel Walls | 2. Stiffness and Slip of a Wall

The calculation of timber panels is carried out on simplified member or surface structures. This article describes how to determine the required stiffness.

• ## Timber Beam Design per the 2014 CSA Standard

Using the RF-TIMBER CSA module, timber beam design is possible according to the CSA O86-14 standard. Accurately calculating timber member bending resistance and adjustment factors is important for safety considerations and design. The following article will verify the factored bending moment resistance in the RFEM add-on module RF-TIMBER CSA using step-by-step analytical equations per the CSA O86-14 standard including the bending modification factors, factored bending moment resistance, and final design ratio.

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