If you work with loads, find a selection of useful features here. Various load types are available to you for member and surface loads (force, moment, temperature, precamber, and so on). You can assign mmber loads to members, member sets, and member lists. In the case of imperfections, inclination and precamber can be determined precisely according to the Eurocode, the American standard ANSI/AISC 360, the Canadian standard CSA S16, and so on.
Do you have any questions?
![KB 001880 | Design of Cable Structures in RFEM 6 and RSTAB 9](/en/webimage/049985/3840051/Seil_QS_EN.png?mw=512&hash=83dd891c6124be9c686441c4b37fe92db2c2062d)
In this article, you will learn how to model and design cable structures in RFEM 6 or RSTAB 9.
![KB 001879 | Influence of Bending Stiffness of Cables](/en/webimage/049953/3835546/Seil.png?mw=512&hash=83e64fde3c3d0a1d2649d8e64587b93f4ab71876)
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.
![Building Overview (KB1866)](/en/webimage/046746/3676167/KB1866_image01_en_Model.png?mw=512&hash=18feed6e03b6c09c60d7e29dc96041d95c24997b)
To evaluate whether it is also necessary to consider the second-order analysis in a dynamic calculation, the sensitivity coefficient of interstory drift θ is provided in EN 1998‑1, Sections 2.2.2 and 4.4.2.2. It can be calculated and analyzed using RFEM 6 and RSTAB 9.
![Reduction of Building to Cantilever Structure The individual mass points represent stories. The deflection due to the normal compression forces shown in (a) is (b) converted into equivalent moments of displacement or shear forces (KB1867)](/en/webimage/046751/3675982/KB1867_image01_building_replacement_system_as_cantilever.png?mw=512&hash=2810652c31c299316a7e4564086f5e5f9b5889b2)
For the ultimate limit state design, EN 1998‑1, Sections 2.2.2 and 4.4.2.2 require a calculation considering the second‑order theory (P‑Δ effect). This effect may be neglected only if the interstory drift sensitivity coefficient θ is less than 0.1.
![Feature 002867 | Displaying Design Results in Table According to Design Situations](/en/webimage/052077/4034917/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
The design results of the add-ons can be optionally displayed in the tables by design situations. This allows you to evaluate the results in great detail.
![Feature 002868 | Final Result Combination via Auxiliary Combinations](/en/webimage/052079/4036832/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
In the combination wizard, you can create final result combinations using auxiliary combinations. In the case of models with many load cases (for example, moving loads for bridges), you can use this option to generate result combinations that are more transparent and thus easier to check.
![Feature 002869 | Combined PDF report](/en/webimage/052080/4037368/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
In RFEM and RSTAB, you have the option to export several printout reports into a PDF file.
You can find this function in the Navigator – Data.
![Feature 002840 | Graphical Add-on Result Display by Design Situation](/en/webimage/051593/3982947/Bemessungssituation.png?mw=512&hash=7fd0d9a61cbc8d701205795390d25dfae3caa76b)
In the Navigator – Results, you can select the design situations for which you want to display the add-on results graphically.