The truss is a rolled cross-section with a welded taper made of sheets or an I‑section. In order to use such a cross-section in RF‑/FRAME‑JOINT Pro, the web thickness of the welded component must have at least the same value as the web of the main cross-section.
Question
After starting the calculation, RF‑/FRAME‑JOINT Pro jumps to Window "1.4.1 Beam Right - Part 1" and the following message appears: "Value is out of range. Existing value: 6.00 - Min value: 7.50". There seems to be no connection to this window. Where is the error?
Answer:
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![Display Options for 3D Graphics](/en/webimage/010212/3015603/01-en.png?mw=512&hash=65e98cfe859ce35a3e3e9da47a0ef9335401520e)
In addition to the result tables, you can create three-dimensional graphics in RF‑/FRAME‑JOINT Pro and RF‑/JOINTS. This is a realistic representation of a connection to scale.
![Calculation Example](/en/webimage/009326/2418187/01-en-png.png?mw=512&hash=e5b08a40fd9a5a16825be6182b3138f78627561e)
In this example, the design resistance of an end plate according to EN 1993-1-8 [1] is to be determined; the other components are not described here. To check the results, the dimensions of the connection IH 3.1 B 30 24 of Typified Connections [2] were used. S 235 material and bolts with strength 10.9 are used.
![Frame Corner in RF-/FRAME JOINT Pro](/en/webimage/009418/2418639/01-en-png.png?mw=512&hash=e5b08a40fd9a5a16825be6182b3138f78627561e)
When designing bending-resistant connections from I-beams, the connection is dissolved into the individual parts. For these basic components of a joint, there are separate formula calculators for load-bearing capacity and stiffness. In RFEM and RSTAB, frame joints can be designed using the RF-/FRAME-JOINT Pro add-on module.
![KB 001883 | Plate Girder Design According to AISC 360-22 in RFEM 6](/en/webimage/051561/3980997/im1.png?mw=512&hash=b8237709c4f30213fac51d86d32a42bddde72f03)
Plate girder is an economical choice for long spans construction. I-section steel plate girder typically has a deep web to maximize its shear capacity and flange separation, yet thin web to minimize the self-weight. Due to its large height-to-thickness (h/tw) ratio, transverse stiffeners may be required to stiffen the slender web.
![Add-on "Steel Joints for RFEM 6" | Component Library](/en/webimage/043097/3898884/steel_joints_components.png?mw=512&hash=e4f835906155863fc7019d5043b22e553dc766f9)
- Numerous component types, such as base and end plates, web angles, fin plates, gusset plates, stiffeners, tapers, or ribs for easy input of typical connection situations
- Universally applicable basic components (such as plates, welds, bolts, auxiliary planes) for modeling complex connection situations
- Graphical display of the connection geometry with dynamic updating during the input
- Wide range of cross-section shapes: I-sections, U-sections, angles, T-sections, hollow sections, built-up cross-sections and thin-walled sections
- Library in the Dlubal Center with a large number of program-side template connections, including user-defined templates
- Automatic adaptation of the connection geometry based on the relative arrangement of the components to each other – even in case of subsequent editing of the structural components
![Feature 002820 | Limit Plastic Strain for Welds](/en/webimage/050344/3881226/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
In the ultimate configuration of the steel joint design, you have the option to modify the limit plastic strain for welds.
![Component "Base Plate"](/en/webimage/050345/3936120/50345.png?mw=512&hash=3bd641cb1a2445804b338855e4debfc40c6563e9)
The "Base Plate" component allows you to design base plate connections with cast-in anchors. In this case, plates, welds, anchorages, and steel-concrete interaction are analyzed.
![Feature 002807 | 3D Display of FSM Results](/en/webimage/049281/3861162/2024-05-01_10-32-55.png?mw=512&hash=2377d291bc20ac3d78d617b50c131614e99ac6f7)
In the "Edit Section" dialog box, you can display the buckling shapes of the Finite Strip Method (FSM) as a 3D graphic.
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