Building Information Modeling (BIM)

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1

Structural Analysis Programs by Dlubal Software and BIM

It is very important for Dlubal Software to provide options for planning in compliance with BIM. Numerous interfaces implemented in the structural analysis programs RFEM and RSTAB facilitate data exchange with commonly used software (such as CAD programs) and make it easy and comfortable.

The following overview shows a range of the interfaces integrated in RFEM and RSTAB by default.

2

Interface with TEKLA Structures

There are three options for data exchange between RFEM/RSTAB and Tekla Structures: The stp interface allows for a file-based transfer of framework models in both directions. The analytical model generated and contained in Tekla Structures can be transferred to RFEM/RSTAB using another direct interface. Finally, a further direct interface is provided to exchange and adjust physical models in both directions.

3

Integration in Autodesk Revit

The direct bidirectional RFEM/RSTAB interface with Autodesk Revit leaves nothing to be desired: A structure created in RFEM/RSTAB can be visualized in Revit and prepared for the design engineer. In the same way, it is possible to calculate and design a Revit model in RFEM/RSTAB. Even subsequent modifications in both the Revit and the RFEM/RSTAB model can be easily aligned.

4

Integration in Autodesk AutoCAD

In addition to data exchange using DXF files, RFEM/RSTAB supports direct exchange with AutoCAD by Autodesk. This interface uses the latest .NET technology. You can start the data exchange directly in RFEM/RSTAB.

5

RFEM Interface with Nemetschek Allplan (*.asf)

With the help of ASF files, reinforcement determined in RF-CONCRETE can be exported and displayed in Allplan in the form of reinforcement contours and FEA reinforcement color images.

In addition, the company Allbau Software GmbH offers an Allplan2Dlubal plugin, which is used to automatically generate a plate-member model from the Allplan model for use in Dlubal's structural analysis software.

6

RFEM Interfaces to Rhino & Grasshopper

The bidirectional RFEM-Rhino interface allows you to transfer various line types as well as surfaces (plane, rotated surface, and NURBS).

With the direct Grasshopper interface, you can transfer surfaces with the properties material, thickness, and surface stiffness type as well as members with the properties material, cross-section, and member rotation to RFEM.

7

Data Exchange with Dietrich's (*.ifc)

You can import IFC files with the IFC interface and the "CAD/BIM Model" as well as convert member and surface elements. This import has been optimized in cooperation with the company Dietrich's so that the corresponding cross-sections and materials are assigned automatically for member elements.

8

Interface to SketchUp with the 3skeng Steelwork Tool

With the program 3skeng Steelwork in SktechUp, it is possible to export IFC files based on "Structural Analysis View". This view contains the structural system with member hinges and cross-section as well as material properties.Use "File" → "Import" to import the IFC file. For more detailed information, see the SHK Engineering and Consulting GmbH & Co. KG website.

9

Product Interface for Steel Construction (*.stp)

In order to transfer models consisting of members only, the DSTV product interface for steel constructions was implemented (German Steel Construction Association). Therefore, it is possible to exchange data between RFEM/RSTAB and other programs such as "Bentley ProStructure 3D", "Tekla Structures", "Bocad", "Intergraph Frameworks", "Graitec Advance Steel", "Cadwork", and many others.

10

Microsoft Excel

In order to reuse or prepare values entered in RFEM/RSTAB tables, there is a direct interface to Microsoft Excel. You can directly export the RFEM/RSTAB tables - individually or all at once - to an Excel spreadsheet and vice versa. Even the formulas for parametric input can be prepared in Excel and imported to RFEM/RSTAB.

11

DXF File Format (*.dxf)

The DXF file format is one of the most common data exchange formats in the field of CAD programs. RFEM and RSTAB support the import and export of these DXF files.

12

IFC Interface

The IFC interface (Industry Foundation Classes) is divided in several areas called views. When importing and exporting data, the StructuralAnalysisView is primarily supported. This means that you can transfer the structural model including member elements, concentrated loads, linear and member loads, supports, support conditions, load cases etc. The most important elements from the CoordinateView containing graphical elements are imported additionally. Click the links below to see the online description of the interface and general information concerning IFC.

13

RFEM Connection to ConED

ConED has a bidirectional interface to RFEM. It can be used to calculate ceiling systems, deep beams, floor slabs, and entire buildings from ConED. Adjustments of any kind can still be made in RFEM before the user initiates the calculation. The calculation results are read from the database via the COM interface and are imported in ConED.

14

SDNF Interface (*.sdnf)

The SDNF interface (Steel Detailing Neutral Format) by Intergraph is used to exchange data with Intergraph Frameworks or Tekla Structures. It is possible to import as well as export a variety of structural data like nodes and members including relevant materials and cross-sections to and from RFEM/RSTAB. The transfer of support conditions, however, is not possible.

15

Interface with Bentley ISM (*.ism.dgn)

Due to the implementation of the ISM interface in RFEM/RSTAB, it is possible to exchange models with ProSteel, ProConcrete, and other Bentley applications. The interface works in both directions. The ISM technology core piece consists of the ISM Viewer V8i provided for free by Bentley.

Furthermore, you can export surface elements like walls and plates as well as sections with variable cross‑sections to ProSteel and ProConcrete. Another useful feature of the ISM Viewer is the possibility to create 3D PDF documents.

16

RFEM Interface with GLASER -isb cad- (*.geo, *.fem)

This interface control the interaction with the program Glaser by isb cad: It is possible to import GEO files to RFEM and export results of concrete surface designs in FEM files. The import includes single lines and arcs, surfaces as slabs (contour lines), center lines of walls, center points of columns, openings, surface loads, linear loads, nodal loads, free rectangular as well as line and concentrated loads. The export includes the top and bottom reinforcement in FE mesh or grid points. Optionally, you can export only the additional reinforcement or the shear reinforcement.

17

RFEM Interface with DICAD STRAKON (*.cfe)

RFEM supports the data exchange with the structural engineering and precast program STRAKON by DICAD. The import includes structural data such as nodes, lines, materials, surfaces, openings, nodal and line supports. The export covers reinforcement including border lines of surfaces. Each surface is exported separately.

18

CIS/2 Structural Frame Schema (*.stp)

The CIS/2 file format of NIST (National Institute of Standards and Technology) is frequently used for data exchange in English-speaking countries. In addition to the structural data of frameworks, it is possible to import the information about loads, load cases, load and result combinations.

19

RFEM Interface with CADKON (*.esf)

The ESF file format (Engineering Structural Format) enables data exchange with the program CADKON by ABStudio. In ESF file format, it is possible to export plane surfaces with uniform thickness and potential openings as well as materials used in RFEM.

20

Textformat (*.000)

It is possible to import text files of the formats *.000 (structure) and *.001 (loads) to RFEM/RSTAB (the format of the former program PLATE by Dlubal Software).

21

SCIA Engineer (*.xml)

In order to exchange data with other programs used for structural analysis, the import of XML files from Scia Engineer was implemented.

22

Interface with Cadwork (*.stp)

This interface enables the export of models to the CAD program Cadwork and the import of Cadwork models to RFEM/RSTAB. Besides the model geometry, the transfer includes information about cross-sections, materials, supports and rigid couplings.

23

Interface with SEMA

This interface enables the import of 3D structures created in the timber construction and design software SEMA. A SEMA model can be transferred to the programs by Dlubal Software using the DXF or the DSTV(STP) file format. DSTV includes not only the structure geometry but also information about cross-sections, materials, supports, and rigid couplings.

24

Interface to Advance Steel (*.smlx)

By using the SMLX export (Steel Markup Language), you can transfer member structures from RSTAB or RFEM to Advance Steel. In addition to the model geometry, it is possible to transfer the corresponding cross-sections, materials, as well as member eccentricities.

25

Interface with Hilti PROFIS Engineering Suite

This direct bidirectional interface enables data exchange between RFEM/RSTAB and Hilti PROFIS Engineering Suite.

The support loads from RFEM/RSTAB are usually exported to Hilti PROFIS Engineering Suite to perform the design of dowels and anchor heads. The results of the dowel design can be imported to RFEM/RSTAB as comments.

26

Interface to IDEA StatiCa

Export members, cross-sections (made of steel or concrete) and internal forces from RFEM/RSTAB for design to IDEA StatiCa. The data is synchronized in IDEA StatiCa when the RFEM/RSTAB model changes.
27

Background Layers

Background layers are used to simplify the modeling process. The layers can be underlain in the RFEM or RSTAB work window to facilitate the input of graphical objects.

28

Interface with VCmaster

With this interface, it is possible to export the RFEM/RSTAB printout report to the VCmaster program (for calculations and text processing), developed by the company Veith Christoph GmbH, where it can be further edited.

29

RTF Interface

Further editing of a printout report is possible in MS Office as well. For this, the report is converted into the RTF file including all graphics.

30

Add-on Modules RS-COM (for RSTAB) and RF-COM (for RFEM)

This programmable interface is based on COM technology. It allows you to program your own input macros or post-processing programs.

31

Add-on Module RF-LINK

With the RF-LINK add-on module installed in RFEM, the following interfaces are additionally available for data import:

  • Standard Acis Text Format (*.sat)
  • Initial Graphics Exchange Specification (*.igs, *.iges)
  • Standard for the Exchange of Product Model Data (*. stp, *.step)
32

General Information About Import and Export

For the aforementioned interfaces and exchange file formats (except for MS Excel and CSV), it is possible to manage the materials and cross-sections by means of user-defined conversion files.

Plausibility checks after import or before export are also possible, of course. Optionally, only selected objects can be exported. You can also define the orientation of the Z-axis for the data exchange. Similarly, coordinates can be mirrored or even switched.

Contact us

Contact Dlubal

Do you have any questions about our products or need advice on selecting the products needed for your projects?
Contact us via our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.

+49 9673 9203 0

info@dlubal.com

Manuals

Manuals

Book About FEA and RFEM

Book about FEM and RFEM

In this book for engineers and students, you will learn the basics of the finite element method in a practical way by means of manageable examples that have been calculated with RFEM.

Pleasant and Comfortable Work with Dlubal Software

“As usual, I would like to confirm that it is a real pleasure to work with the Dlubal Software programs, which I have been able to use with ease.

I am also completely satisfied with the connection to REVIT 2017 as it complies with a very high standard and works well.”

Smooth Data Exchange

“The data exchange between cadwork and RSTAB has gone without a hitch.”


Project: Tented Roof Structure for Family House, Austria

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RFEM
RFEM

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB
Structural Frame Analysis Software RSTAB

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD
RFEM
RF-CONCRETE

Add-on Module

Design of reinforced concrete members and surfaces (plates, walls, planar structures, shells)

Price of First License
810.00 USD
RFEM
RF-CONCRETE Columns

Add-on Module

Reinforced concrete design according to the model column method (method based on nominal curvature)

Price of First License
630.00 USD
RFEM
RF-CONCRETE NL

Add-on Module

Physical and geometrical nonlinear calculation of beam and plate structures consisting of reinforced concrete

Price of First License
1,300.00 USD
RFEM
RF-PUNCH Pro

Add-on Module

Punching shear design of foundations and slabs with nodal and line supports

Price of First License
760.00 USD
RFEM
RF-FOUNDATION Pro

Add-on Module

Design of single, bucket and block foundations

Price of First License
760.00 USD
RFEM
RF-STEEL

Add-on Module

Stress analysis of steel surfaces and members

Price of First License
1,030.00 USD
RSTAB
STEEL

Add-on Module

Stress analysis of steel members

Price of First License
760.00 USD
RFEM
RF-STEEL EC3

Add-on Module

Design of steel members according to Eurocode 3

Price of First License
1,480.00 USD
RFEM
RF-STEEL Warping Torsion

Module Extension for RF-STEEL EC3 and RF-STEEL AISC

Warping torsion analysis according to the second-order theory with 7 degrees of freedom

Price of First License
850.00 USD
RFEM
RF-STEEL Plasticity

Module Extension for RF-STEEL EC3

Plastic design of cross-sections according the Partial Internal Forces Method (PIFM) and Simplex Method

Price of First License
850.00 USD
RFEM
RF-STEEL AISC

Add-on Module

Design of steel members according to the American standard ANSI/AISC 360

Price of First License
1,480.00 USD
RFEM
RF-STEEL SIA

Add-on Module

Design of steel members according to the Swiss standard SIA 263

Price of First License
1,480.00 USD
RFEM
RF-STEEL GB

Add-on Module

Design of steel members according to the Chinese standard GB 50017-2003

Price of First License
1,480.00 USD
RFEM
RF-STEEL CSA

Add-on Module

Design of steel members according to the Canadian standard CSA S16

Price of First License
1,480.00 USD
RFEM
RF-STEEL Fatigue Members

Add-on Module

Fatigue design of members and sets of members according to EN 1993-1-9

Price of First License
1,120.00 USD
RFEM
RF-ALUMINUM

Add-on Module

Design of aluminium members according to Eurocode 9

Price of First License
1,480.00 USD
RFEM
RF-ALUMINUM ADM

Add-on Module

Design of aluminium members according to the American standards ADM 2010, ADM 2015 and ADM 2020

Price of First License
1,480.00 USD
RFEM
RF-/TIMBER Pro

Add-on Module

Timber design according to Eurocode 5, SIA 265 and/or DIN 1052

Price of First License
1,120.00 USD
RFEM
RF-TIMBER AWC

Add-on Module

Design of timber members according to the American standard ANSI/AWC NDS

Price of First License
1,120.00 USD
RFEM
RF-TIMBER CSA

Add-on Module

Design of timber members according to the Canadian standard CSA O86-14

Price of First License
1,120.00 USD
RFEM
RF-GLASS

Add-on Module

Design of single-layer, laminated and insulating glass

Price of First License
1,120.00 USD
RFEM
RF-TOWER structure

Add-on Module

Generation of geometrically complex 3D tower structures such as lattice towers and radio masts

Price of First License
1,750.00 USD
RFEM
RF-TOWER attachments

Add-on Module

Generation of equipment for lattice towers of mobile operators

Price of First License
990.00 USD
RFEM
RF-TOWER Loading

Add-on Module

Generation of wind, ice and variable loads for lattice towers

Price of First License
1,750.00 USD
RFEM
RF-TOWER effective lengths

Add-on Module

Determination of effective lengths for lattice towers

Price of First License
580.00 USD
RFEM
RF-TOWER design

Add-on Module

Design of triangular and quadrilateral lattice towers according to European standards

Price of First License
1,480.00 USD
RFEM
RF-FRAME JOINT Pro

Add-on Module

Design of rigid bolted frame joints according to Eurocode 3 or DIN 18800

Price of First License
1,120.00 USD
RFEM
RF -JOINTS Steel - Pinned

Add-on Module

Design of pinned connections according to Eurocode 3

Price of First License
670.00 USD
RFEM
RF-/JOINTS Steel - Column Base

Add-on Module

Design of hinged and restrained column base footings according to Eurocode 3

Price of First License
670.00 USD
RFEM
RF -JOINTS Timber - Steel to Timber

Add-on Module

Design of indirect timber connections with dowel-type fasteners and steel plates according to NDS and Eurocode 5

Price of First License
850.00 USD
RFEM
RFEM/RSTAB add-on module RF-/JOINTS Timber-Timber to Timber

Add-on Module

Design of Direct Timber Connections According to Eurocode 5

Price of First License
360.00 USD
RFEM

Add-on Module

Dynamic analysis of natural frequencies and mode shapes of member, surface, and solid models

Price of First License
1,030.00 USD
RFEM
RF -DYNAM Pro - Forced Vibrations

Add-on Module

Dynamic and seismic analysis including time history analysis and multi-modal response spectrum analysis

Price of First License
1,120.00 USD
RFEM
RF -DYNAM Pro - Equivalent Loads

Add-on Module

Seismic and static load analysis using the multi-modal response spectrum analysis

Price of First License
760.00 USD
RFEM
RF -DYNAM Pro - Nonlinear Time History

Add-on Module

Nonlinear dynamic analysis to external excitations

Price of First License
1,120.00 USD
RFEM
RF-PIPING

Add-on Module

Modeling piping systems

Price of First License
1,750.00 USD
RFEM
RF-PIPING Design

Add-on Module

Piping design and pipe stress analysis

Price of First License
1,480.00 USD
RFEM
RF-FORM-FINDING

Add-on Module

Form-finding of tensile membrane and cable structures

Price of First License
1,750.00 USD
RFEM
RF-CUTTING-PATTERN

Add-on Module

Generation of cutting patterns for tensile membrane structures

Price of First License
2,240.00 USD
RFEM
RF-DEFORM

Add-on Module

Deformation and deflection analysis of members and sets of members

Price of First License
220.00 USD
RFEM
RF-MOVE

Add-on Module

Generation of load cases from moving loads for members and sets of members

Price of First License
450.00 USD
RFEM
RF-MOVE Surfaces

Add-on Module

Generation of load cases from moving loads for surfaces

Price of First License
540.00 USD
RFEM
RF-IMP

Add-on Module

Generation of equivalent geometric imperfections and pre-deformed initial structures for nonlinear calculations

Price of First License
760.00 USD
RFEM
RF-STABILITY

Add-on Module

Stability analysis according to the eigenvalue method

Price of First License
1,030.00 USD
RFEM
RF-SOILIN

Add-on Module

Soil-structure interaction analysis and determination of elastic foundation coefficients based on soil data

Price of First License
760.00 USD
RFEM
RF-INFLUENCE

Add-on Module

Generation of influence lines and surfaces due to constant internal forces

Price of First License
580.00 USD
RFEM
RF-MAT NL

Add-on Module

Consideration of nonlinear material laws

Price of First License
1,300.00 USD
RFEM
RF-STAGES

Add-on Module

Consideration of construction stages during a building phase

Price of First License
850.00 USD
RFEM
RF-LAMINATE

Add-on Module

Deflection analysis and stress design of laminate and sandwich surfaces

Price of First License
1,120.00 USD
RFEM
RFEM/RSTAB add-on module RF-COM/RS-COM

Add-on Module

Programmable interface (API) based on the COM technology

Price of First License
580.00 USD
RFEM
RF-LINK

Add-on Module

RFEM interface for data import in the formats Step, IGES, ACIS

Price of First License
900.00 USD