This model is used to clearly show the stability failure of a beam under increasing compression load.
For this, the incremental stability analysis is used.
When clicking through the individual load increments, it is obvious that stability failure occurs after exceeding the plastic limiting bending moment.
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Incremental Stability Analysis on Member
| Number of Nodes | 3 |
| Number of Lines | 1 |
| Number of Members | 1 |
| Number of Surfaces | 0 |
| Number of Solids | 0 |
| Number of Load Cases | 2 |
| Number of Load Combinations | 1 |
| Number of Result Combinations | 0 |
| Dimensions (Metric) | 2,000 x 0,000 x 0,000 m |
| Dimensions (Imperial) | 6.56 x 0 x 0 feet |
You can download this structural model to use it for training purposes or for your projects. However, we do not assume any guarantee or liability for the accuracy or completeness of the model.
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For cross‑laminated structures with large spans, downstand beams or hybrid structures are often used. They can be modeled in RFEM 5 by using surfaces and member cross‑sections. In both structural systems, curved downstand beams are also possible without any problems. In the case of the curved surface, the member is always appropriately generated by means of the automatic member eccentricity with the thickness distance of the surface and the member. The downstand beam can also be connected flexibly by means of a line release.
This article deals with considering end releases between surfaces with line hinges and line releases. End releases between surfaces are taken into account using line releases as well as line hinges. The examples are joints in reinforced concrete structures and frame joints in cross-laminated timber structures.
In this article, the design of a timber panel wall with the beam panel thickness type is performed.
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This article provides a comprehensive overview of essential seismic analysis methods, explaining their principles and applications, as well as the scenarios in which they are most effective
In the material library of RFEM, you can find plywood materials according to the US and Canadian standards ANSI/APA PRG 510 Plywood (USA/CAN).
For the fire resistance design of timber surfaces, you can display a charring diagram depending on the time of fire exposure.
It is also possible to print this charring diagram into the printout report.
In RFEM, the oriented strand board (OSB) material is available for the USA and Canada. The material parameters are taken from the "Panel Design Specification manual".
Using the "Beam Panel" thickness type, you can model timber panel elements in 3D space. Simply specify the surface geometry and the timber panel elements are automatically generated using an internal member-surface construct, including the element connection stiffness. The Beam Panel thickness type is defined using the Multilayer Surfaces add-on.
A "beam panel" provides you with the following advantages:
- Single-sided or double-sided sheathing
- Automatic calculation of a semi-rigid coupling between studs and sheathing
- Nailed sheathing connection
- Stapled sheathing connection
- User-defined sheathing connection
- Representation as a complete geometric 3D object (frame, studs, surface, etc.), including eccentricity and automatically calculated stiffness between elements
- Consider openings via surface cells
- Design of the individual structural elements utilizing the Timber Design add-on (full shear wall design planned for a future release)
- Other material options available (e.g., particle board, gypsum, or fiberboard sheathing with cold-formed steel sections)
How does the "Orthotropic Plastic" material model work in RFEM?
Are the models and presentations from Info Day 2017 freely available, and can you send them to me?
How can I model a support of a member on a bracket with screws?
How can I incrementally increase loading?
How can I define the failure criterion s, such as Tsai-Wu, for an orthotropic material?
Are the models and presentations from Info Day 2019 freely available, and can you send them to me?
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