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The one-story house made of cross-laminated and glued-laminated timber will be awarded the prestigious certification for passive houses, a symbol of high-quality standards in terms of energy efficiency and CO2 consumption.
Structural Design:
Maderas Besteiro
www.mbesteiro.com
Structural Design:
Maderas Besteiro
www.mbesteiro.com
Submodels
Model Used in
Timber Passive House
No Download Possible
Customer Project / View Only
| Number of Nodes | 419 |
| Number of Lines | 634 |
| Number of Members | 95 |
| Number of Surfaces | 74 |
| Number of Load Cases | 19 |
| Number of Result Combinations | 263 |
| Total Weight | 112.034 tons |
| Dimensions (Metric) | 20.495 x 15.049 x 3.200 m |
| Dimensions (Imperial) | 67.24 x 49.37 x 10.5 feet |
| Program Version | 5.24.00 |
Length: 01:06:40 min
Length: 01:04:39 min
Length: 01:08:02 min
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Length: 00:00:56 min
Length: 00:55:27 min
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Product Feature
Length: 00:00:56 min
Length: 00:00:28 min
Basically, you can design the structural components made of cross-laminated timber in the RF-LAMINATE add-on module. Since the design is a pure elastic stress analysis, it is necessary to additionally consider the stability issues (flexural buckling and lateral-torsional buckling).
The following article describes a design using the equivalent member method according to [1] Section 6.3.2, performed on an example of a cross-laminated timber wall susceptible to buckling described in Part 1 of this article series. The buckling analysis will be performed as a compressive stress analysis with reduced compressive strength. For this, the instability factor kc is determined, which depends primarily on the component slenderness and the support type.
As an alternative to the equivalent member method, this article describes the possibility to determine the internal forces of a wall at risk of buckling according to the second-order analysis, taking imperfections into account, and to subsequently perform the cross-section design for bending and compression.
![Vibration Analysis (Source: [3])](/en/webimage/009798/467822/01-de-png.png?mw=512&hash=2551750327252c0e49d549ec0d9fb2579bfaa885)
The vibration design of cross‑laminated timber plates often governs for wide-span ceilings. The advantage of timber as a lighter material compared to concrete is turned into a disadvantage here, since a high mass is advantageous for a low natural frequency.
In the RF-LAMINATE add-on module for RFEM, the design of torsional shear stresses in the superposition of net and gross cross-section values is possible. The design is performed separately in the x- and y-directions. The loads on the intersection points of cross-laminated timber panels are checked.
- General stress analysis
- Graphical and numerical results of stresses and stress ratios fully integrated in RFEM
- Flexible design with different layer compositions
- High efficiency due to few entries required
- Flexibility due to detailed setting options for basis and extent of calculations
- A local overall stiffness matrix of the surface in RFEM is generated on the basis of the selected material model and the layers contained. The following material models are available:
- Orthotropic
- Isotropic
- User-defined
- Hybrid (for combinations of material models)
- Option to save frequently used layer structures in a database
- Determination of basic, shear, and equivalent stresses
- In addition to the basic stresses, the required stresses according to DIN EN 1995-1-1 and the interaction of those stresses are available as results.
- Stress analysis for structural surfaces including simple or complex shapes
- Equivalent stresses calculated according to different approaches:
- Shape modification hypothesis (von Mises)
- Shear stress hypothesis (Tresca)
- Normal stress hypothesis (Rankine)
- Principal strain hypothesis (Bach)
- Calculation of transversal shear stresses according to Mindlin or Kirchhoff, or user-defined specifications
- Serviceability limit state design by checking surface displacements
- User-defined specifications of limit deflections
- Possibility to consider layer coupling
- Detailed results of individual stress components and ratios in tables and graphics
- Results of stresses for each layer in the model
- Parts list of designed surfaces
- Possible coupling of layers entirely without shear
RFEM and RSTAB models can be saved as 3D glTF models (*.glb and *.glTF formats). View the models in 3D in detail with a 3D viewer from Google or Babylon. Take your VR glasses, such as Oculus, to "walk" through the structure.
You can integrate the 3D glTF models into your own websites using JavaScript according to the instructions (as on the Dlubal website Models to Download): "Easily display interactive 3D models on the web & in AR" .
With the Camera Fly Mode view option, you can fly through your RFEM and RSTAB structure. Control the direction and speed of the flight with your keyboard. Additionally, you can save the flight through your structure as a video.
Is it possible to perform fire resistance design of cross-laminated timber panels in RF‑LAMINATE?
Is it possible to perform a detailed analysis of connections, supports, or reinforcements of cross‑laminated timber plates in RF‑LAMINATE?
How can I calculate a timber-concrete composite floor with cross-laminated timber?
Where can I find the layer structures by producers of cross-laminated timber plates in the RF‑LAMINATE add-on module?
How can the NDS and CSA O86 factors be manually adjusted for consideration in the Timber Design add-on?
What calculation is carried out for the NDS Strength Configuration "Calculation of Torsion" options?
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