- Design of members and sets of members for compression, bending, shear, and combined actions
- Stability analysis of buckling and lateral-torsional buckling
- Automatic determination of critical buckling loads and critical buckling moments for general load applications and support conditions by means of a special FEA program (eigenvalue analysis) integrated in the module
- Optional application of discrete lateral supports to beams
- Automatic cross-section classification (Class 1 to 4)
- Deformation analysis (serviceability)
- Cross-section optimization
- A wide range of available cross-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; double angles
- Optional import of buckling lengths from RF-STABILITY/RSBUCK
- 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
RF-STEEL SIA | Features
![Entering Intermediate Lateral Restraint in Center of Member 1](/en/webimage/010537/2968407/1_Intermediate_lateral_restraint_in_the_middle_of_beam_1.png?mw=512&hash=b59e15e6f9f5b251a280addda3968092369a2f14)
![KB 001883 | Plate Girder Design According to AISC 360-22 in RFEM 6](/en/webimage/051561/3980997/im1.png?mw=512&hash=b8237709c4f30213fac51d86d32a42bddde72f03)
![Steel Connection Rigidity and Its Influence on Structural Design](/en/webimage/051432/3972404/Rigidity-caseA.png?mw=512&hash=3be64e68ab2956fd2b92f0afa1559b3a8c72b468)
![KB 001875 | AISC 341-22 Moment Frame Member Design in RFEM 6](/en/webimage/047794/3736755/im01.jpg?mw=512&hash=33697d419a0e8a96b738e8e2e97fae057743a108)
![Detail Settings Stability](/en/webimage/007101/1591586/000173-en-png-png.png?mw=512&hash=4c04f05756851c05487b6a2a4b343b9487868bee)
- Design of members and sets of members for compression, bending, shear, and combined actions
- Stability analysis of buckling and lateral-torsional buckling
- Automatic determination of critical buckling loads and critical buckling moments for general load applications and support conditions by means of a special FEA program (eigenvalue analysis) integrated in the module
- Optional application of discrete lateral supports to beams
- Automatic cross-section classification (Class 1 to 4)
- Deformation analysis (serviceability)
- Cross-section optimization
- A wide range of available cross-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; double angles
- Optional import of buckling lengths from RF-STABILITY/RSBUCK
- 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
![Design by Load Case](/en/webimage/007103/1591647/000175-en-png.png?mw=512&hash=079424ad0c9a59abbf2d8bcb3ba77d1ad59bfb58)
For reasons of result evaluation, clearly arranged result tables are available. The first 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 the members can be displayed at any location. In this way, you can easily retrace how the module has performed the individual designs.
The complete module data are part of the RFEM/RSTAB printout report. You can select the report contents and extent specifically for the individual designs. The graphical result display of the governing design criteria in RFEM/RSTAB provides a quick overview of the design ratios of individual structural components.
![Lateral Supports](/en/webimage/007102/1591616/000174-en-png-png.png?mw=512&hash=42dbcbdfcd4d4c6a5c4ec8160acb2539374e40b7)
It is necessary to enter material, load, and combination data in RFEM/RSTAB in compliance with the design concept specified by SIA 263.
The RFEM/RSTAB material library already contains the relevant materials for SIA. Furthermore, RFEM/RSTAB automatically creates the corresponding load combinations according to SIA 260. However, you can also create all the combinations manually in RFEM/RSTAB.
The RF-/STEEL SIA add-on module requires members and sets of members, as well as load cases, load combinations, and result combinations to be designed. In the next steps, you can adjust the preset definitions of lateral intermediate supports and effective lengths.
In the case of continuous members, it is possible to define individual support conditions and eccentricities of each intermediate node of single members. A special FEA tool then determines the critical loads and moments required for the stability analysis in these situations.
![Add-on "Steel Joints for RFEM 6" | Component Library](/en/webimage/043097/3898884/steel_joints_components.png?mw=512&hash=e4f835906155863fc7019d5043b22e553dc766f9)
- Numerous component types, such as base and end plates, web angles, fin plates, gusset plates, stiffeners, tapers, or ribs for easy input of typical connection situations
- Universally applicable basic components (such as plates, welds, bolts, auxiliary planes) for modeling complex connection situations
- Graphical display of the connection geometry with dynamic updating during the input
- Wide range of cross-section shapes: I-sections, U-sections, angles, T-sections, hollow sections, built-up cross-sections and thin-walled sections
- Library in the Dlubal Center with a large number of program-side template connections, including user-defined templates
- Automatic adaptation of the connection geometry based on the relative arrangement of the components to each other – even in case of subsequent editing of the structural components