Fascinating customer projects designed with the Dlubal structural analysis software.
Aluminum Design for RFEM 6 / RSTAB 9
Strength and Stability
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"I take this opportunity to thank you and your team for a really great software. After so many years of utilizing your software, we still see every day what your product is able to do and we really enjoy the application!
We look forward to more years together!"
Dipl.-Ing. Hartmuth Petschnigg
1 June 2021
Customer Projects
Are you working with aluminum? We recommend you the Aluminum Design add-on. It allows you to perform cross-section resistance design and stability analysis of aluminum member structures in the ultimate limit state. The input and result evaluation are completely integrated in the user interface of the structural FEA software RFEM and the frame & truss analysis software RSTAB. Thus, it remains clearly arranged, as you already know from RFEM / RSTAB.
1
Strength and Stability | Features
- A wide range of available sections, such as rolled I-sections, channel sections, T-sections, angles, rectangular and circular hollow sections, round bars, symmetrical and asymmetrical, parametric I-, T- and angle sections, built-up cross-sections (suitability for design depends on the selected standard)
- Design of general RSECTION cross-sections (depending on the design formats available in the respective standard); for example, equivalent stress design
- Design of tapered members (design method depending on the standard)
- Adjustment of the essential design factors and standard parameters is possible
- Flexibility due to detailed setting options for basis and extent of calculations
- Fast and clear results output for an immediate overview of the result distribution after the design
- Detailed output of the design results and essential formulas (comprehensible and verifiable result path)
- Numerical results clearly arranged in tables and graphical display of the results in the model
- Integration of the output into the RFEM/RSTAB printout report
2
Cross-Section Resistance
- Design of tension, compression, bending, shear, torsion, and combined internal forces
- Tension design with consideration of a reduced section area (for example, hole weakening)
- Automatic classification of cross-sections to check local buckling
- Internal forces from the calculation with Torsional Warping (7 DOF) are taken into account by means of the equivalent stress check (currently not yet for the design standard ADM 2020).
- Design of cross-sections of Class 4 with effective cross-section properties according to EN 1993‑1‑5 (licenses for RSECTION and Effective Sections are required for the RSECTION cross-sections)
- Shear buckling check with consideration of transverse stiffeners
3
Strength and Stability | Stability Analysis
- Stability analyses for flexural buckling, torsional buckling, and flexural-torsional buckling under compression
- Lateral-torsional buckling analysis of the structural components subjected to moment loading
- Import of the effective lengths from the calculation using the Structure Stability add-on
- Graphical input and check of the defined nodal supports and effective lengths for stability analysis
- Depending on the standard, a choice between user-defined input of Mcr, analytical method from the standard, and use of internal eigenvalue solver
- Consideration of a shear panel and a rotational restraint when using the eigenvalue solver
- Graphical display of a mode shape if the eigenvalue solver was used
- Stability analysis of structural components with the combined compression and bending stress, depending on the design standard
- Comprehensible calculation of all necessary coefficients, such as interaction factors
- Alternative consideration of all effects for the stability analysis when determining internal forces in RFEM/RSTAB (second-order analysis, imperfections, stiffness reduction, possibly in combination with the Torsional Warping (7 DOF) add-on)
4
Strength and Stability | Input
As usual, you enter the structural system and calculate the internal forces in the programs RFEM and RSTAB. You have unlimited access to the extensive material and cross-section libraries. Did you know that you can create general cross-sections using the RSECTION program? That saves you a lot of work.
Don't be afraid of additional windows and input chaos! Aluminum Design is completely integrated into the main programs and automatically takes into account the structure and the available calculation results. You can directly assign further entries for the aluminum design, such as effective lengths, cross-section reductions, or design parameters, to the objects to be designed. You can simply and efficiently select the elements graphically using the [Select] function.
5
Strength and Stability | Results
Was your design successful? Very good, now comes the relaxed part. Because the program gives you the performed design checks in a table. You can display all result details in detail here. The clearly presented design formulas ensure that you will be able to understand the results without any problems. There is no black-box effect with Dlubal Software.
The design checks are carried out at all governing locations of the members and displayed graphically as a result diagram. You can find more detailed graphics in the result output. This includes the stress distribution on the cross-section or the governing mode shape, for example.
All input and result data are part of the RFEM/RSTAB printout report. You can select the report contents and extent specifically for the individual design checks.
Advantages
- Consideration of Internal Forces from Calculation with Torsional Warping (7 Degrees of Freedom)
- Consideration of shear field and rotational restraint
- Graphical Display of Mode Shape for Lateral-Torsional Buckling Analysis
- Detailed documentation of the verifications carried out with the output of the verification formulas
Price
New
Deflection Analysis of Member Elements
This article describes an example that shows how to analyze the deflection of members using Dlubal's design add-ons.
Aluminum Design | Design Checks for General RSECTION Cross-Sections
In the Aluminum Design add-on, it is also possible to design general cross-sections that are not predefined in the cross-section library.
Aluminum Design | Graphical Display of Mode Shape for Lateral-Torsional Buckling Analysis
Aluminum Design | Consideration of Internal Forces from Calculation with Torsional Warping (7 Degrees of Freedom)
Aluminum Design | Tension Design Considering Reduced Cross-Sectional Area (such as Hole Weakening)
Aluminum Design | Serviceability | Results
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