Frequently Asked Questions (FAQ)

Search FAQ

Show Filter Hide Filter





Customer Support 24/7

Knowledge Base

In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.

Newsletter

Receive information including news, useful tips, scheduled events, special offers, and vouchers on a regular basis.

  • Answer

    The structural engineering software RFEM or RSTAB is very well suited to perform such designs. The add-on modules for steel or concrete structures support your individual solution approaches.

    Special add-on modules from the RF‑/TOWER series extend and simplify the options.

    Main Programs RFEM or RSTAB
    The main programs are used to define structures and materials as well as actions.

    RSTAB allows you to edit and analyze beam, frame, or truss structures. RFEM also provides plate, wall, shell, and solid elements.

    Add-on Modules
    RF-/TOWER Structure
    helps to perform efficient generation of three- or four-sided tower structures.

    RF-/TOWER Equipment
    includes a comprehensive library with tower equipment and allows for a quick and easy integration into your model.

    RF-/TOWER Loading
    provides you with professional support when generating wind, ice and traffic loads.


    RF-/TOWER Effective Lengths
    determines the effective lengths of members that are specific for towers.

    RF-/TOWER Design
    performs design according to EN 1993‑,1‑1, EN 1993‑3‑1, and EN 50341, including NA.

    RF-/JOINTS Steel Tower
    designs nominally pinned bolted connections used in lattice towers according to EN 1993‑1‑8.

    Wind Analysis in Digital Wind Tunnel
    Use RWIND Simulation for advanced analysis of wind flow behavior. The results can be used directly as loads or load cases in RFEM or RSTAB.

    Dynamic Analysis
    If it is necessary to perform seismic analysis or vibration designs, the RF‑/DYNAM Pro add-on modules provide special tools for determining natural frequencies and mode shapes, an analysis of forced vibrations, a generation of equivalent loads, or for a nonlinear time history analysis.

    If you have any question about the Dlubal Software programs, please do not hesitate to contact our sales department.
  • Answer

    RFEM provides a perfect basis for the calculation and design of piping systems. The add-on modules RF‑PIPING and RF‑PIPING Design provide you with a support for modeling and design.

    Since it is also possible to model supporting structures and other components of the entire model, an analysis and design close to reality is possible.

    Main Program RFEM
    The main program RFEM is used to define structures, materials, and actions.

    Add-on Modules
    • RF-PIPING
      Modeling of pipelines including specific piping components, such as valves, flanges or fittings.
    • RF-PIPING Design
      Comparison of existing and allowable stresses of piping systems

    Available Standards
    • EN 13480-3
    • ASME B31.1
    • ASME B31.3
    Dynamic Analysis
    If it is necessary to perform seismic analysis or vibration designs of a building, the RF‑/DYNAM Pro add-on modules provide special tools for determining natural frequencies and mode shapes, for an analysis of forced vibrations, a generation of equivalent loads, or for a nonlinear time history analysis.

    If you have any question about the Dlubal Software programs, please do not hesitate to contact the sales department.
  • Answer

    Glass structures can be analyzed in RFEM with the RF‑GLASS add-on module. It is possible to carry out the calculation and design on the entire model or separately.

    An extensive material library contains many of the commercially available glass types, layers, and gases.

    Define nodes or lines for the support of glass surfaces or model solids. The results include stresses in surfaces and solids, among others.

    Main Program RFEM
    For the glass design, you need RFEM as the basis. Also, RFEM provides a variety of options for the calculation and design of solid, steel or timber structures.

    Add-on Modules
    • RF-GLASS
      Calculation of stresses and deformations of arbitrary shaped and also curved glass surfaces.
    Standards
    • DIN 18008: 2010-12
    • TRLV: 2006-08
  • Answer

    Using RFEM or RSTAB, the structures of process manufacturing plants can be calculated very well. The modular structure allows you to configure the software individually.

    Main Programs RFEM or RSTAB
    The main programs are used to define structures, materials, and loads.

    RSTAB allows you to edit and analyze beam, frame, or truss structures. RFEM also provides plate, wall, shell, and solid elements.

    Add-on modules
    Dynamic Analysis
    In case a seismic analysis or vibration designs are required, the RF‑/DYNAM Pro add-on modules provide special tools for determining natural frequencies and mode shapes, for an analysis of forced vibrations, a generation of equivalent loads, or for a nonlinear time history analysis.

    If you have any question about the Dlubal Software programs, please do not hesitate to contact the sales department.
  • Answer

    Both RFEM and RSTAB are ideally suited for the application in mechanical engineering and are used by numerous users in daily practice. Due to the modular system, you can only use the add-on modules required for your purposes.

    Main Programs RFEM or RSTAB
    The main programs are used to define structures, materials, and loads.

    RSTAB provides optimal tools for beam, truss or frame structures.
    In addition, RFEM provides you with additional options to calculate the structures with surface or solid elements.

    Add-on modules
    Dynamic Analyses
    In case a seismic analysis or vibration designs are required, the RF‑/DYNAM Pro add-on modules provide special tools for determining natural frequencies and mode shapes, for an analysis of forced vibrations, a generation of equivalent loads, or for a nonlinear time history analysis.

    If you have any question about the Dlubal Software programs, please do not hesitate to contact the sales department.



  • Answer

    Both RFEM and RSTAB provide a suitable solution. In addition to Eurocode 2, the international standards, such as ACI 318, CSA A23.3, SIA 262, or GB 50010, are also available for the design in both programs.

    With the add-on modules for designing columns or foundations, or for punching shear designs, it is possible to quickly and reliably calculate the structural components.

    Main Programs RFEM or RSTAB
    The main programs RFEM or RSTAB are used to define structures, materials, and actions.

    For reinforced concrete structures, RFEM is clearly the first choice as it allows you to also create structural systems consisting of plates, walls and shells in addition to spatial frame structures. RFEM is the more diverse variant as it can be equipped and extended with the corresponding add-on modules for all materials and designs.

    Available Standards
    • Eurocode 2 (EN 1992-1-1)
    • SIA 262
    • ACI 318
    • CSA A23.3
    • GB 50010
    Add-on Modules
    • RF-CONCRETE/CONCRETE
      A basic module providing the functionality for the reinforced concrete design of members, and, for RFEM, also for plates, walls, folded plate structures, and shells
    • RF-/CONCRETE Columns
      Reinforced concrete design according to the model column method or the nominal curvature method
    • RF-PUNCH Pro
      Punching shear designs of surfaces
    • RF-/FOUNDATION Pro
      Design of single, bucket and block foundations
    • RF-CONCRETE Deflect (RFEM)
      Analytical deformation analysis
    • RF-CONCRETE NL
      Realistic deformation analysis of surfaces and members
    Dynamic Analysis
    If it is necessary to perform seismic analysis or vibration designs of a building, the RF‑/DYNAM Pro add-on modules provide special tools for determining natural frequencies and mode shapes, for an analysis of forced vibrations, a generation of equivalent loads, or for a nonlinear time history analysis.

    If you have any question about the Dlubal Software programs, please do not hesitate to contact the sales department.
  • Answer

    Both RFEM and RSTAB are ideally suited for the structural analysis and design of timber structures .

    Main Programs RFEM or RSTAB
    The main programs RFEM or RSTAB are used to define structures, materials, and actions. In addition to the option to create spatial frame and truss structures, such as halls, RFEM also allows for plate, wall, and shell structures, and thus provides a more versatile option. It pays off if it is necessary to also carry out design in other areas, such as solid construction.

    The RF-LAMINATE add-on module is only available for RFEM.


    For both programs, Eurocode 5 with numerous National Annexes and other international standards are available.


    Available Standards
    • RF-/TIMBER Pro - Eurocode 5 for stress analysis, stability analysis, serviceability limit state design, and fire resistance design according to EC 5 or the Swiss standard SIA 265

    • RF-/TIMBER AWC - American Standard ANSI/AWC NDS-2018 for ultimate limit state design, serviceability limit state design, and fire resistance design

    • RF-/TIMBER CSA - Canadian timber standard CSA O86‑09 and CSA O86‑14 for ultimate limit state design, serviceability limit state design, and fire resistance design

    • RF-/TIMBER NBR - Brazilian timber standard for ultimate and serviceability limit state designs

    Other Add-on Modules
    • RF-/JOINTS Timber - Steel to Timber
      Design of indirect timber connections according to Eurocode 5 or ANSI/AWC NDS 2018.
    • RF-/JOINTS Timber - Timber to Timber
      Design of direct timber connections with slant screws
    • RF-LIMITS
      Among other things, it analyzes the load-bearing capacity of members, member ends, nodes, nodal supports, and surfaces. Furthermore, the library includes various fasteners by Würth SHIGA, Sherpa, Simpson StrongTie, and so on, as well as the ultimate load-bearing capacity for timber beams by Steico and Metsä Wood.
    Only in Connection with RFEM:

    RF-LAMINATE - Stress and deflection analysis of laminate surfaces

    RX-TIMBER allows for design of timber structures without using RFEM or RSTAB.

    If you have any question about the Dlubal Software programs and services, please do not hesitate to contact our sales department.
  • Answer

    Both RFEM and RSTAB provide a suitable solution. For both programs, there are numerous European and international standards as well as various add-on modules that facilitate your daily work in steel construction.

    Main Programs RFEM or RSTAB
    The main programs RFEM or RSTAB are used to define structures, materials, and actions. In addition to the option to create spatial frame and truss structures, such as halls, RFEM also allows for plate, wall, and shell structures, and thus provides a more versatile option. It pays off if it is necessary to also carry out design in other areas, such as solid construction.

    Available Standards
    • EN 1993-1-1 (Eurocode 3),
    • AISC according to ANSI/AISC 360 (US standard),
    • SIA according to SIA 263:2013 (Swiss standard),
    • IS according to IS 800:2007 (Indian standard),
    • BS according to BS 5950-1:2000 (British standard) or BS EN 1993-1-1 (British Annex),
    • GB according to GB 50017-2003 (Chinese standard),
    • CSA according to CSA S16-09 and CSA S16-14 (Canadian standard),
    • AS according to AS 4100-1998 + Annex 1 - 1999 (Australian standard),
    • NTC-DF according to NTC-RCDF (2004) (Mexican standard),
    • SP according to SP 16.13330.2011 (Russian standard),
    • SANS according to SANS 10162-1:2011 (South African standard),
    • NBR according to ABNT NBR 8800:2008 (Brazilian standard),
    • HK according to the standard Code of Practice for the Structural Use of Steel 2011 (Buildings Department - Hong Kong)
    • RF-/STEEL - General stress analysis of steel surfaces and members
    Add-on Modules for Steel Structures

    The add-on modules complement the functionality of the main programs. For example, RF‑/STEEL EC3, allows you to perform design of steel structures according to Eurocode 3. The RF‑STEEL Warping Torsion add-on module supplements the design according to Eurocode 3 with torsional buckling analysis with up to 7 degrees of freedom, provided it does not refer to a standard case of EC3.

    Further specialized application areas, such as plastic design, a stability analysis according to the eigenvalue method, or the generation of geometric equivalent imperfections and pre-deformed equivalent models are available. Stand-alone modules, such as PLATE-BUCKLING, support your design of rigid or stiffened plates. The SHAPE-THIN program allows you to create any thin-walled cross-sections. Thus, the cross-section properties are determined and stress analyses or plastic designs can be performed.

    You can design hinged or rigid connections by using the RF‑/JOINTS add-on modules.

    The stand-alone program CRANWAY is available for the design of craneways.


    Dynamic Analysis

    If it is necessary to perform seismic analysis or vibration designs of a building, the RF‑/DYNAM Pro add-on modules provide special tools for determining natural frequencies and mode shapes, for an analysis of forced vibrations, a generation of equivalent loads, or for a nonlinear time history analysis.

    If you have any question about the Dlubal Software programs, please do not hesitate to contact our sales department.


  • Answer

    For Service Contract Basic, the total cost is USD 110.00 net for each additional license. For Service Contract Pro, the charge for an additional license is USD 170.00 net.

    In addition to RFEM/RSTAB, it also contains all integrated add-on modules.

    In the case of network licenses that are used at more than one location, the prices for the service contracts are charged for each location.


    If you have any question, do not hesitate to contact our sales department at any time.

  • Answer

    The service contracts for the RFEM and RSTAB program family are intended to update the respective main program as well as all available add-on modules.

    For all available and current add-on modules, it is thus possible to get free of charge:
    • New features and functions for design
    • Error corrections
    • Optimization of calculation and design
    • Possible adjustments or corrections of the standards
    These are a part of the service contract.

1 - 10 of 36

Contact us

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

+49 9673 9203 0

info@dlubal.com

First Steps

First steps

We provide hints and tips to help you get started with the main programs RFEM and RSTAB.

Wind Simulation & Wind Load Generation

With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.

The generated wind loads acting on these objects can be imported to RFEM or RSTAB.

Your support is by far the best

“Thank you for the valuable information.

I would like to pay a compliment to your support team. I am always impressed how quickly and professionally the questions are answered. I have used a lot of software with a support contract in the field of structural analysis, but your support is by far the best. ”