The structural analysis software RFEM 6 is the basis of a modular software system. The main program RFEM 6 is used to define structures, materials, and loads of planar and spatial structural systems consisting of plates, walls, shells, and members. The program also allows you to create combined structures as well as to model solid and contact elements.
RSTAB 9 is a powerful analysis and design software for 3D beam, frame, or truss structure calculations, reflecting the current state of the art and helping structural engineers meet requirements in modern civil engineering.
Do you often spend too long calculating cross-sections? Dlubal Software and the RSECTION stand-alone program facilitate your work by determining section properties of various cross-sections and performing a subsequent stress analysis.
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The "Beam Panel" element will allow you to model entire buildings or only certain areas with using surfaces for timber shear wall panels.By introducing the necessary line hinges in the rigid couplings, the "Beam Panel" element was also released, which will now be further optimized step-by-step in order to achieve the goal mentioned above.Currently, the application is limited to very simple structures. However, we are very focused on improving the application as quickly as possible. The current state of development is summarized in this FAQ:
Current State and Planned Development:
In timber design, beams are often built up of several timber elements. The individual elements can be connected with glue, nails, bolts, or dowels. A glued connection is to be assumed as rigid. In the case of dowel‑type fasteners, the joint is compliant (slip joint), and the cross‑section properties of the connected elements cannot be fully applied.
In RFEM and RSTAB, it is possible to consider the compliance (slip) of the connection in the individual layers. This can be done by specifying the coefficient of compliance gamma, which can be determined by means of the gamma method, for example according to EN 1995‑1‑1 (Annex B). By using this coefficient, the Steiner components of the cross-section parts are reduced, resulting in an effective bending stiffness.
In addition, it is possible to assign different materials to the individual cross‑section. To do this, use the "Hybrid" function, in which one of these materials is used as reference for the determination of the ideal cross-section properties.
The slip of a timber wall is computed using the slip modulus. For a 4mm nail, the slip amounts to 793.981 N/mm per shear plane for common C24 timber. Now, all you need to do is to consider the mean value of the stiffness and the partial safety factor, which is omitted in this example. The distance between the nails used then gives the necessary longitudinal stiffness of the joint.