Interesting customer projects realized with Dlubal structural analysis software.
RF-LAMINATE Add-on Module for RFEM
Design of Laminate Surfaces
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Impressed by Program and Presentation
"I have watched the webinar recording "Design of Cross-laminated Timber Panels (CLT) According to Eurocode 5" on YouTube and I am impressed by about the program and the very good presentation.
Dipl.-Ing. Lothar Reichle
02/18/2020
The RF-LAMINATE add‑on module performs deflection analysis and stress designs of laminate surfaces. The calculation considering shear coupling uses the laminate theory.
Based on a user‑defined layer structure, the module creates a local overall stiffness matrix for the respective surface. RF‑LAMINATE designs for example cross‑laminated timber elements (CLT), glass fiber reinforced plastic, or prefabricates to calculate the layer elements.
The following standards are available:
ANSI/AWC NDS-2015 (LRFD and ASD)- ANSI/AWC NDS-2018 (LRFD and ASD)
CSA O86-14- CSA O86-19
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EN 1995‑1‑1:2004‑11 (including National Annexes) -
DIN 1052:2010‑12 - Code independent (analysis only)
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Features
- 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 calculation basis and extent
- Based on the selected material model and the layers contained, a local overall stiffness matrix of the surface in RFEM is generated. 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 parts of almost any shape
- Equivalent stresses calculated according to different approaches:
- Shape modification hypothesis (von Mises)
- Maximum shear stress criterion (Tresca)
- Maximum principal stress criterion (Rankine)
- Principal strain criterion (Bach)
- Calculation of transversal shear stresses according to Mindlin, 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
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Input
It is necessary to select load cases, load combinations, and result combinations for the ultimate and the serviceability limit state design. After selecting the surfaces to be designed, you can define the relevant material model.
The structure of layers forming the basis for the stiffness calculation can vary. You can adjust the parameters defined by the selected material model according to your individual needs. The 3*3 matrix of the layers is modifiable as well. In this way completely free selection when generating the stiffnesses is provided.
The limit stresses of each layer are defined by the selected material. It is possible to adjust the values by user-defined specifications.
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Results
After the calculation, the maximum stresses, stress ratios, and displacements are displayed by load case, surface, or grid points. The stress ratio can refer to any kind of stress type. The current location is highlighted by color in the RFEM model.
In addition to the result evaluation in tables, it is possible to display the stresses and stress ratios graphically in the RFEM work window. For this, you can adjust the colors and values assigned in the panel.
Contact us
Do you have any questions about our products or need advice on selecting the products needed for your projects?
Contact us via our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.
Customer Projects
Price
![[ES] CP 001182 | Passive House Made of Timber in Lugo, Spain](/-/media/Images/netgenium/thumbnails/2/9/6/4/9/2964939/2964939.png?la=en-US&mw=348&mlid=4B2CCD20A31F4F1D847A9B5A6A16074A&hash=27920D9E60B6DBD55618EBD6529815D51FD3A7EB)
![[DE] CP 001187 | Water Sports Center, Formentera, Spain](/-/media/Images/netgenium/thumbnails/2/9/6/4/9/2964989/2964989.png?la=en-US&mw=348&mlid=EC30788B8D8E46169D9505405FE23644&hash=A02BD7DB3276FB32EB0F386EAF54564F76F4182C)
![[ES] CP 001173 | CLT Residential Building in Girona, Spain](/-/media/Images/netgenium/thumbnails/2/9/8/2/8/2982880/2982880.png?la=en-US&mw=348&mlid=F12742A2C6E544AC85614ED7F32A13D9&hash=A586CCF77EA2914A5ADD62890C86301F084390C6)
User-Defined Colors and Textures for Layer Compositions
To better distinguish between the different layer compositions (e.g., for walls and ceilings), you can assign user‑defined colors and textures to each composition.
Load Combinations in Timber Structures for European and American Timber Standards
2018 NDS Updates for Cross-Laminated Timber Design
Stability Analysis of Two-Dimensional Structural Components on an Example of a Cross-Laminated Timber Wall 3
Stability Analysis of Two-Dimensional Structural Components on Example of Cross-Laminated Timber Wall 1
![Flowchart from [3]](/-/media/Images/website/img/000001-010000/009801-009900/009802.png?la=en-US&mlid=5DB97CF3B53B4DCFB67E29E7B20BBEB7&hash=09B8E8FDD55988605B4D0F8DF3E6F1651BD0060D)
- Can I design laminated veneer lumber with RFEM/RSTAB?
- How can I calculate a timber-concrete composite floor with cross-laminated timber?
- Is it possible to save the structures of the manufacturer-specific cross-laminated timber plates in the RF‑LAMINATE add-on module?
- How is it possible to display the main support direction graphically in RF‑LAMINATE?
- Is it possible to create a second design case in RF‑LAMINATE?
- Why is the strength always reduced by the kmod value of 0.6 during the calculation in the RF‑LAMINATE add‑on module, although I have load combinations with variable loads?
- Why are the stresses of the 90° orientation not displayed for a layer with the orthotropy direction 90° for σb,90 in RF‑LAMINATE?
- Which Dlubal Software programs can I use to calculate and design timber structures?
- What does the "Calculate grid points result values for graphics" option set?
- Is it possible to perform fire resistance design of cross-laminated timber panels in RF‑LAMINATE?
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