This video shows how to assign local section reductions for timber beams. To avoid modeling notches with the multiple members and different cross-sections, this feature allows you to assign the section reduction directly on a member or set of member. To proof the location and geometry of the notch, it is displayed directly in your structure. In the Timber Design add-on, these reductions are taken into account.
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![Continuous Beam with Uniform Load](/en/webimage/032266/3332015/1._The_Model.png?mw=512&hash=c10083e9da24ade1636f3a73bae2c6b1bef125b0)
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![Feature 002415 | Improved Segmentation for Deformation Analysis](/en/webimage/032122/3329118/Durchbiegung_EN.jpg?mw=512&hash=fb47e7913917db6b85f0c6246366c502cd9f8ba5)
In the "Deflection and Design Support" tab under "Edit Member", the members can be clearly segmented using optimized input windows. Depending on the supports, the deformation limits for cantilever beams or single-span beams are used automatically.
By defining the design support in the corresponding direction at the member start, member end, and intermediate nodes, the program automatically recognizes the segments and segment lengths to which the allowable deformation is related. It also automatically detects whether it is a beam or a cantilever due to the defined design supports. The manual assignment, as in the previous versions (RFEM 5), is no longer necessary.
The "User-Defined Lengths" option allows you to modify the reference lengths in the table. The corresponding segment length is always used by default. If the reference length deviates from the segment length (for example, in the case of curved members), it can be adjusted.
![Feature 002824 | OSB Material for USA and Canada](/en/webimage/050460/3955503/2024-06-28_10-42-39.png?mw=512&hash=5ec86ff7955d8c9a50e53301df3f21fceda009a5)
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".
![Feature 002792 | Timber Panel Element](/en/webimage/048109/3767848/2024-03-14_13-56-20.png?mw=512&hash=c2c60498cb42f6ae62fb1ccfea4928bacda0d865)
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)
![Feature 002585 | Fire Resistance Design of Surfaces for EN 1995 and SIA 265](/en/webimage/047506/3771829/2024-03-15_11-08-39.png?mw=512&hash=9825c52bdc32fc7283ab1907a9b8435abfd7054b)
You have the option to perform the fire resistance design of surfaces using the reduced cross-section method. The reduction is applied over the surface thickness. It is possible to perform the design checks for all timber materials allowed for the design.
For cross-laminated timber, depending on the type of adhesive, you can select whether it is possible for individual carbonized layer parts to fall off, and whether you can expect increased charring in certain layer areas.