Modal analysis is the starting point for the dynamic analysis of structural systems. This video shows you a summary of how to perform a modal analysis in RFEM 6.
KB 001793 | Modal Analysis in RFEM 6 Using a Practical Example
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Modal analysis is the starting point for the dynamic analysis of structural systems. You can use it to determine natural vibration values such as natural frequencies, mode shapes, modal masses, and effective modal mass factors. This outcome can be used for vibration design, and it can be used for further dynamic analyses (for example, loading by a response spectrum).
In this article, you will learn how to model and design cable structures in RFEM 6 or RSTAB 9.
This article describes and explains the influence of bending stiffness of cables on their internal forces. Furthermore, the text provides information on how this influence can be reduced.
The ASCE 7-22 Standard [1], Sect. 12.9.1.6 specifies when P-delta effects should be considered when running a modal response spectrum analysis for seismic design. In the NBC 2020 [2], Sent. 4.1.8.3.8.c gives only a short requirement that sway effects due to the interaction of gravity loads with the deformed structure should be considered. Therefore, there may be situations where second-order effects, also known as P-delta, must be considered when carrying out a seismic analysis.
In RFEM, oriented strand board (OSB) material is available for the USA and Canada. The material parameters are taken from the "Panel Design Specification manual".
The "Bracing in Cells" function allows you to generate diagonal bracing with just a few clicks. You can find this feature under Tools → Generate Model – Members → Bracing in Cells.
In RFEM and RSTAB, you can visualize the flow field quantities of pressure, velocity, turbulence kinetic energy, and turbulence dissipation rate for the wind simulation.
The clipping planes are aligned with the respective wind direction.
In the ultimate configuration of the steel joint design, you have the option to modify the limit plastic strain for welds.
Is it possible to use SHAPE-THIN 9 files in RFEM 6 and RSTAB 9?
Is it possible to use the general method according to EN 1993‑1‑1, 6.3.4 to design structural components with an asymmetric cross-section in the Steel Design add-on for RFEM 6 or RSTAB 9?
Why does the integration/support of my building in the ground below the ground level not work?
How can the NDS and CSA O86 factors be manually adjusted for consideration in the Timber Design add-on?
Is it possible to design a prestressed concrete slab in RFEM 6?
I have purchased a new add-on. Where can I find the installation file for this?
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