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Useful Program Features
The Knowledge Base includes technical articles on a wide array of structural analysis and design topics.
These articles are intended to help you navigate through the Dlubal programs, learn efficient tips and tricks, and provide further insight into the program features.
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Designing End Plate Connection of Hollow Sections Under Tension According to the CIDECT Method and by Means of the FEM Model
A site joint consisting of hollow sections with end plates will be designed. It is the bottom chord of a truss which has to be divided for transport reasons.
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, it is possible to design frame joints using the RF-/FRAME-JOINT Pro add-on module.
As of the program version X.06, joint groups are clearly identified in RF‑/JOINTS.
The updated Results Navigator of RF‑JOINTS allows you to simultaneously display results of different module cases. Thus, you can display all column base designs at the same time in order to perform collision checks of the foundations, for example.
In RF-/JOINTS Timber - Steel to Timber, it is possible to consider the eccentricities of a connection during the calculation. The figure shows different internal forces without consideration of the eccentricity (above) and with consideration of the eccentricity (below).
In RF‑/JOINTS Timber, it is possible to remove an individual dowel from the calculation, and thus create any dowel layout. The calculation disregards these removed dowels for the ultimate limit state design as well as for the net timber cross‑sections analysis and the rotational spring stiffness determination.
In addition to the result tables, it is possible to create a three-dimensional graphics in RF‑/FRAME‑JOINT Pro and RF‑/JOINTS. This is a realistic representation of the connection to scale.
RF‑/LIMITS analyses the ultimate load capacity of timber and steel connections. The ultimate elastic capacity of joints according to DSTV has now been implemented in the add‑on module. The library has been extended to include the connection types IH, IS, IW, IG, IK and PM. The filter functions ensure a comfortable selection of the connections. If the designs are not fulfilled, you can determine an optimization function for the connection from the DSTV Library.
In the RF‑/HSS add‑on module, you can analyze the connections for nodes at which hollow sections join. In addition to importing the geometry and loads from RFEM or RSTAB, you can also define the nodal parameters manually. Thus, you can also check existing connections without creating the truss model in RFEM or RSTAB.
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