The deformation process of the global deformation components can be represented as a movement sequence.
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![KB 001877 | ASCE 7-22 and NBC 2020 Seismic P-Delta Considerations in RFEM 6](/en/webimage/048528/3803808/Image_01_-_Interstory_Drifts.png?mw=512&hash=dda93b6dc2bff834091aa0c09a68a55dab800606)
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.
![KB 001848 | Timber Column Design as per the 2018 NDS Standard in RFEM 6](/en/webimage/040983/3525158/Timber_Column_for_KB_1848.png?mw=512&hash=8767c3300658d77c253bb7ff632327937a04dd95)
Using the Timber Design add-on, 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 strength calculated by the Timber Design add-on using step-by-step analytical equations as per the NDS 2018 standard including the compressive adjustment factors, adjusted compressive design value, and final design ratio.
![KB 001874 | LTB Analysis According to ADM 2020 Section F.4 in RFEM 6](/en/webimage/048099/3772420/2024-03-18_15-43-26.png?mw=512&hash=418d15db74dbdf280bc2956def625d5b0eb8704f)
Lateral-Torsional Buckling (LTB) is a phenomenon that occurs when a beam or structural member is subjected to bending and the compression flange is not sufficiently supported laterally. This leads to a combination of lateral displacement and twisting. It is a critical consideration in the design of structural elements, especially in slender beams and girders.
![Steel Fiber-Reinforced Concrete Slab](/en/webimage/041372/3534262/Modellbild_Stahlfaserbetonplatte_2.png?mw=512&hash=6ea606fd7627bc9cb2c12bf354831b59d98fe4b8)
Using an example of a steel fiber-reinforced concrete slab, this article describes how the use of different integration methods and of a different number of integration points affects the calculation result.
![Feature 002426 | Animation of Deformation](/en/webimage/032091/3328083/AnimationRFEM6_EN.jpg?mw=512&hash=ecf9e52031e929ead1b99a37bfa7e0b1c3a2f4f2)
The deformation process of the global deformation components can be represented as a movement sequence.
![Feature 002842 | Sign-Dependent Stress Analysis](/en/webimage/051240/3953337/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
In the Stress-Strain Analysis add-on, you can use the option to specify sign-dependent limit stresses by stress component.
![Feature 002827 | Stresses Within Members](/en/webimage/050679/3922742/50679.png?mw=512&hash=89c2586ec7139690a213073aaa5a3e314c7ed023)
Get a better understanding of the stress distribution within member cross-sections by using clipping planes.
![Feature 002421 | Displaying Result Values on Isolines](/en/webimage/031922/3325367/Isolinien_EN.jpg?mw=512&hash=7128e1d3476cede4a52641e47eb2532fdaa44a70)
Result values for deformations, internal forces, stresses, and so on, can be displayed on the isolines.
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