RF-/STEEL NBR Add-on Module for RFEM/RSTAB
Design of Steel Members According to Brazilian Standard ABNT NBR 8800:2008
Further Information
The RF-/STEEL NBR add‑on module performs the ultimate and the serviceability limit state design of steel members and sets of members according to:
ABNT NBR 8800:2008 (Brazilian standard)
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Features
- Design of tension, compression, bending, shear, combined internal forces, and torsion
- Stability analysis for flexural buckling, torsional buckling, and lateral-torsional buckling
- Optional application of discrete lateral supports to beams
- Deformation analysis (serviceability)
- Cross-section optimization
- Wide range of cross-sections available, for example rolled I-sections, C-sections, rectangular hollow sections, angles and T-sections. Welded sections: I‑shaped (symmetrical and asymmetrical about major axis), channel sections (symmetrical about major axis), rectangular hollow sections, angles, round pipes and round bars
- Clearly arranged result tables
- 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-section, x-location, or by load cases, load and result combinations
- Result table of member slenderness and governing internal forces
- Parts list with weight and solid specifications
- Seamless integration in RFEM/RSTAB
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Working with RF-/STEEL NBR
It is necessary to enter material, load and combination data in RFEM/RSTAB in compliance with the design concept specified by Brazilian standard ABNT NBR 8800:2008. The RFEM/RSTAB material library already contains relevant materials.
The RF-/STEEL NBR add-on module requires members and sets of members as well as load cases, load combinations, and result combinations to be designed.
In the subsequent input windows, you can adjust preset definitions of lateral intermediate supports and effective lengths.
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Results
The first result window shows the maximum design ratios including the corresponding design of each designed load case, load combination, or 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.
Complete module data is part of the RFEM/RSTAB printout report. You can select the report contents and extent specifically for the individual designs.
Contact us
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Price
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Creating Lateral Intermediate Supports
In RF-/STEEL EC3, the Window 1.4 Lateral Intermediate Supports offers you the option to define lateral intermediate supports at individual members. These supports are created from connected purlins and horizontal beams, for example, and increase the resistance against lateral-torsional buckling. Lateral intermediate supports can be entered either with a relative or an absolute distance.
SHAPE-THIN | Cold-Formed Sections
SHAPE-THIN determines the effective cross-sections according to EN 1993-1-3 and EN 1993-1-5 for cold-formed sections. You can optionally check the geometric conditions for the applicability of the standard specified in EN 1993‑1‑3, Section 5.2.
The effects of local plate buckling are considered according to the method of reduced widths and the possible buckling of stiffeners (instability) is considered for stiffened sections according to EN 1993-1-3, Section 5.5.
As an option, you can perform an iterative calculation to optimize the effective cross-section.
You can display the effective cross-sections graphically.
Read more about designing cold-formed sections with SHAPE-THIN and RF-/STEEL Cold-Formed Sections in this technical article: Design of a Thin-Walled, Cold-Formed C-Section According to EN 1993-1-3.
- Why do I get high differences when designing a longitudinally stiffened buckling panel compared to the German and Austrian National Annexes?
- How can I create a curved or curved section?
- How can I perform the stability analysis for an edgewise supported flat steel, for example 100/5, in RF-/STEEL EC3? Although the cross-section is rotated by 90 ° in RFEM/RSTAB, it is displayed lying flat in RF-/STEEL EC3.
- How are the signs to be interpreted for the release results of the line release and line hinges?
- How is the rotational stiffness of a buckling stiffener determined in FE-BUCKLING?
- How are hot -dip galvanized components considered for fire protection in the Steel EC 3 add -on module?
- In RF-/STEEL EC3, is the "Elastic design (also for cross-section class 1 and 2)" option under "Details → Ultimate Limit State" considered for the stability analysis when activated?
- How can I get the member end forces to design the connections?
- I would like to calculate and design "temporary structures." What do I need for this?
- How can I create a drilled beam in RFEM?
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