RF-/ALUMINUM ADM Add-on Module for RFEM/RSTAB
Design of Aluminium Members According to American Standards ADM 2020
The RF-/ALUMINUM ADM add-on module performs the ultimate and the serviceability limit state designs of members and sets of members according to the American standards ADM 2010, ADM 2015 and ADM 2020. It includes the analysis methods:
- Load and Resistance Factor Design (LRFD)
- Allowable Stress Design (ASD)
- Design of members and sets of members for tension, compression, bending, shear, torsion, and combined internal forces
- Stability analysis of buckling, torsional-flexural and lateral-torsional buckling
- Automatic determination of effective radius of gyration by special integrated FEA software (eigenvalue analysis) for general loading and support conditions
- Alternative analytical calculation of effective radius of gyration for standard situations
- Optional application of discrete lateral supports to beams
- Definition of nodal supports for sets of members
- Serviceability limit state design (deflection)
- Cross-section optimization
- Wide range of cross-sections available, for example I-, C-, and T‑sections as well as angles, rectangular and circular hollow sections, round bars, and many other
- Detailed result documentation including references to design equations of the used standard
- Various filter and sorting options of results including result lists by member, cross-sections, x-location, or by load case, load and result combination
- Result table of member slenderness and governing internal forces
- Metric and imperial units
First, it is necessary to decide whether to perform design according to ASD or LRFD. Then, you can enter the load cases, load combinations, and result combinations to be designed. Load combinations according to ASCE 7 can be generated either manually or automatically in RFEM/RSTAB.
Further specifications include presetting of lateral intermediate supports, effective lengths, and other standard-specific design parameters. When using continuous members, it is possible to define individual support conditions and eccentricities of each intermediate node of single members. A special FEA tool determines effective radii of gyration required for the stability analysis in the case of these situations.
The first result window shows the maximum design ratios with the corresponding design of each designed load case (load combination / result combination).
The other result windows list all detailed results sorted by specific subject in extendable tree menus. All intermediate results along a member can be displayed at any location. In this way, you can easily retrace how the module has performed the individual designs.
The complete data from the module is part of the RFEM/RSTAB printout report.
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The Aluminum Design Manual (ADM) 2020 was released in February 2020. The ADM 2020 gives guidance for both the allowable strength design (ASD) and load and resistance factor design (LRFD) for aluminum members to ensure reliability and safety for all aluminum structures.
Section of drawing with top view (top) and section through roof (bottom, © FHS Ingeniería Estructural Ltda.)
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