595x

2021-09-07

Form-Finding Add-on

Compared to the RF-FORM-FINDING add-on module (RFEM 5), the following new features have been added to the Form-Finding add-on for RFEM 6:

Specification of all form-finding load boundary conditions in one load case
Storage of form-finding results as initial state for further model analysis
Automatic assignment of the form-finding initial state via combination wizards to all load situations of a design situation
Additional form-finding geometry boundary conditions for members (unstressed length, maximum vertical sag, low-point vertical sag)
Additional form-finding load boundary conditions for members (maximum force in member, minimum force in member, horizontal tension component, tension at i-end, tension at j-end, minimum tension at i-end, minimum tension at j-end)
Material types "Fabric" and "Foil" in material library
Parallel form-findings in one model
Simulation of sequentially building form-finding states in connection with the Construction Stages Analysis (CSA) add-on

Considering Initial State

Do you have any questions?

Events

2024-05-02

Construction Stages in Membrane Structures with RFEM 6

Webinar

Construction Stages in Membrane Structures with RFEM 6

2024-05-08

Online Training

RFEM 6 | Students | Introduction to Reinforced Concrete Design

2024-05-23

Most Frequently Asked Questions Answered by Dlubal Support Team

Webinar

Most Frequently Asked Questions Answered by Dlubal Support Team | May 2024

2024-10-23

Online Training

RSECTION 1 | Students | Introduction to Strength of Materials

2024-10-30

Online Training

RFEM 6 | Students | Introduction to FEM

2024-11-13

Online Training

RFEM 6 | Students | Introduction to Reinforced Concrete Design

Videos

Event

RFEM 6 for Students | Introduction to FEM | Mai 4, 2023

Length: 03:12:04 min

FAQ

FAQ 005336 | How can I animate a load increase or a construction process?

Length: 00:00:46 min

FAQ

FAQ 005317 | How do I create a user-defined fabric?

Length: 00:01:11 min

General

WIN | 09/2022 - What's New in RFEM 6 and RSTAB 9?

Length: 00:01:53 min

Event

Most Frequently Asked Questions Answered by Dlubal Support Team | September 2022

Length: 00:31:15 min

FAQ

FAQ 005307 | Is it possible to borrow an online license of RFEM 6/RSTAB 9 over an extended period...

Length: 00:00:22 min

Event

Form-Finding and Calculation of Membrane Structures in RFEM 6

Length: 01:12:48 min

FAQ

FAQ 005303 | How can I insert a smooth range / a smooth line in a result diagram of RFEM 6?

Length: 00:01:01 min

FAQ

FAQ 005304 | How can I create a nodal support with the "Partial Activity" nonlinearity...

Length: 00:00:13 min

Playlist

Models to Download

242x

17x

Gazebo

Model 004706 | Model of Stuttgart Central Station

253x

30x

Model of Stuttgart Central Station

374x

34x

Membrane Roof

358x

24x

Tent Hall

Reinforced Concrete Column | Fire Resistance Design Check

244x

14x

Concrete Column | Fire Design Check

481x

71x

Cable Stabilized Mast

813x

Membrane Roofing of Sports Area

490x

21x

Membrane Structure

585x

35x

Membrane Roof

Knowledge Base Articles

KB 001880 | Design of Cable Structures in RFEM 6 and RSTAB 9

This article will show you how to model and design cable structures in RFEM 6 and RSTAB 9.

KB 001879 | Influence of bending stiffness of cables

This article shows and explains the influence of the bending stiffness of cables on their internal forces. This article also gives hints on how to reduce this influence.

This article explains how the cloud calculation works.

Figure 1: Wind Simulation on a Modern City Using RWIND

Compliance with building codes, such as Eurocode, is essential to ensure the safety, structural integrity, and sustainability of buildings and structures. Computational Fluid Dynamics (CFD) plays a vital role in this process by simulating fluid behavior, optimizing designs, and helping architects and engineers meet Eurocode requirements related to wind load analysis, natural ventilation, fire safety, and energy efficiency. By integrating CFD into the design process, professionals can create safer, more efficient, and compliant buildings that meet the highest standards of construction and design in Europe.

Screenshots

Product Features

Compared to the RF-FORM-FINDING add-on module (RFEM 5), the following new features have been added to the Form-Finding add-on for RFEM 6:

Specification of all form-finding load boundary conditions in one load case
Storage of form-finding results as initial state for further model analysis
Automatic assignment of the form-finding initial state via combination wizards to all load situations of a design situation
Additional form-finding geometry boundary conditions for members (unstressed length, maximum vertical sag, low-point vertical sag)
Additional form-finding load boundary conditions for members (maximum force in member, minimum force in member, horizontal tension component, tension at i-end, tension at j-end, minimum tension at i-end, minimum tension at j-end)
Material types "Fabric" and "Foil" in material library
Parallel form-findings in one model
Simulation of sequentially building form-finding states in connection with the Construction Stages Analysis (CSA) add-on

The Ponding load type allows you to simulate rain actions on multi-curved surfaces, taking into account the displacements according to the large deformation analysis.

This numerical rainfall process examines the assigned surface geometry and determines which rainfall portions drain away and which rainfall portions accumulate in puddles (water pockets) on the surface. The puddle size then results in a corresponding vertical load for the structural analysis.

For example, you can use this feature in the analysis of approximately horizontal membrane roof geometries subjected to rain loading.

Go to Explanatory Video

Mode Shape of Entire Model for Lateral-Torsional Buckling

Compared to the RF-/STEEL Warping Torsion add-on module (RFEM 5 / RSTAB 8), the following new features have been added to the Torsional Warping (7 DOF) add-on for RFEM 6 / RSTAB 9:

Complete integration into the environment of RFEM 6 and RSTAB 9
7th degree of freedom is directly taken into account in the calculation of members in RFEM/RSTAB on the entire system
No more need to define support conditions or spring stiffnesses for calculation on the simplified equivalent system
Combination with other add-ons is possible, for example for the calculation of critical loads for torsional buckling and lateral-torsional buckling with stability analysis
No restriction to thin-walled steel sections (it is also possible to calculate ideal overturning moments for beams with massive timber sections, for example)

Compared to the RF‑/DYNAM Pro - Natural Vibrations add-on module (RFEM 5 / RSTAB 8), the following new features have been added to the Modal Analysis add-on for RFEM 6 / RSTAB 9:

Preset combination coefficients for various standards (EC 8, ASCE, and so on)
Optional neglect of masses (for example, mass of foundations)
Methods for determining the number of mode shapes (user-defined, automatic - to reach effective modal mass factors, automatic - to reach the maximum natural frequency)
Output of modal masses, effective modal masses, modal mass factors, and participation factors
Masses in mesh points displayed in tables and graphics
Various scaling options for mode shapes in the Result navigator

Frequently Asked Questions (FAQ)

How can I create and edit a user-defined material from an existing material?

I would like to analyze temporary structures. Which programs do you recommend?

Which Dlubal programs do I need for tensile membrane structures?

I would like to analyze cable and tensile structures. Is it possible to use RFEM or RSTAB for this?

How do I create a user-defined fabric?

How can a model be regenerated, or where can I adjust the model tolerances?

Customer Projects

CP 001290 | Amphitheater Roof of Municipal Theater in Most | © Carl Stahl & spol. s r.o.

Amphitheater of Municipal Theater in Most, Czech Republic

CP 001287 | Aviary for Birds in Prague Zoo | © Carl Stahl & spol. s r.o.

Bird Aviary in Prague Zoo, Czech Republic

Retractable Steel-Tensile Dome with Diameter of 65.6 ft in Open Position by 90° (© Odo S&E)

Retractable Tensile Membrane Dome, France

Roofing of Sports Area at Multi-Purpose High School in North of Mayotte, Indian Ocean (© Normandie Structures)

Roofing of Sports Area at Multi-Purpose High School in North of Mayotte, France

Harzdrenalin Membrane Roof at Rappbode Dam in the Harz Mountains (© Ingenieurbüro Gisela Zündel)

Harzdrenalin Membrane Roof at Rappbode Dam in Harz Mountains, Germany

Apollo 11 Roadshow Tent at Night (© Matthew Churchill Productions Ltd.)

Lunar Dome, USA

Champagne Bar - Goodwood Racecourse, United Kingdom

Recreational Area Tension Membrane Structure in Châteauneuf-de-Galaure, France

RFEM Tennis Court Roof Model (© ACS Production)

Tennis Court Tension Membrane Roof in Belin-Béliet, France

Recommended Products for You

RFEM 6 | Main Program RFEM 6

RFEM 6

Main Program

The new generation of 3D FEA software is used for the structural analysis of members, surfaces, and solids.

Price of First License 4,170.00 USD

RFEM 6 | Additional Analysis

Form-Finding for RFEM 6

Add-On

The Form-Finding add-on finds the optimal shape of members subjected to axial forces and tension-loaded surface models. The shape is determined by the equilibrium between the member axial force or the membrane stress and the existing boundary conditions.

Price of First License 2,060.00 USD

RFEM 5 | Main Program RFEM

RFEM 5

Main Program

Structural engineering software for a 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 4,080.00 USD

RFEM 5 | Tensile Membrane Structures

RF-FORM-FINDING 5

Add-On Module

Form-finding of tensile membrane and cable structures

Price of First License 2,060.00 USD

RFEM 5 | Tensile Membrane Structures

RF-CUTTING-PATTERN 5

Add-On Module

Generation of cutting patterns for tensile membrane structures

Price of First License 2,510.00 USD

RSTAB 9 | Main Program RSTAB 9

RSTAB 9

Structural Frame and Truss Analysis Software

Main Program

The modern 3D structural analysis and design program is suitable for the structural and dynamic analysis of beam structures as well as the design of concrete, steel, timber, and other materials.

Price of First License 2,910.00 USD

RFEM 6 | Design

Steel Design for RFEM 6

Add-On

The Steel Design add-on performs the ultimate and serviceability limit state design checks of steel members according to various standards.

Price of First License 2,550.00 USD

RSTAB 9 | Design

Steel Design for RSTAB 9

Add-On

The Steel Design add-on performs the ultimate and serviceability limit state design checks of steel members according to various standards.

Price of First License 2,550.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL EC3 5

Add-On Module

Design of steel members according to Eurocode 3

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL AISC 5

Add-On Module

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

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL SIA 5

Add-On Module

Design of steel members according to the Swiss standard SIA 263

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL IS 5

Add-On Module

Design of steel members according to the Indian standard IS 800:2007

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL BS 5

Add-On Module

Design of steel members according to the British standard BS 5950-1:2000 or British Annex BS EN 1993-1-1

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL GB 5

Add-On Module

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

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL CSA 5

Add-On Module

Design of steel members according to the Canadian standard CSA S16

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL AS 5

Add-On Module

Design of steel members according to the Australian standard AS 4100-1998

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL NTC-DF 5

Add-On Module

Design of steel members according to the Mexican standard NTC-DF 2004

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL SP 5

Add-On Module

Design of steel members according to the Russian standard SP 16.13330.2011

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL SANS 5

Add-On Module

Design of steel members according to the South African standard SANS 10162-1:2011

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL NBR 5

Add-On Module

Design of steel members according to the Brazilian standard ABNT NBR 8800:2008

Price of First License 1,930.00 USD

RFEM 5 | Steel and Aluminum Structures

RF-STEEL HK 5

Add-On Module

Design of steel members according to the Code of Practice for the Structural Use of Steel 2011 (Buildings Department – Hong Kong)

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL 8

Add-On Module

Stress analysis of steel members

Price of First License 850.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL EC3 8

Add-On Module

Design of steel members according to Eurocode 3

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL AISC 8

Add-On Module

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

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL SIA 8

Add-On Module

Design of steel members according to Swiss standard SIA 263

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL IS 8

Add-On Module

Design of steel members according to the Indian standard IS 800:2007

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL BS 8

Add-On Module

Design of steel members according to the British standard BS 5950-1:2000 or British Annex BS EN 1993-1-1

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL GB 8

Add-On Module

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

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL CSA 8

Add-On Module

Design of steel members according to the Canadian standard CSA S16-09

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL AS 8

Add-On Module

Design of steel members according to the Australian standard AS 4100-1998

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL SANS 8

Add-On Module

Design of steel members according to the South African standard SANS 10162-1:2011

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL SP 8

Add-On Module

Design of steel members according to the Russian standard SP 16.13330.2011

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL NTC-DF 8

Add-On Module

Design of steel members according to the Mexican standard NTC-DF 2004

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL HK 8

Add-On Module

Design of steel members according to Code of Practice for the Structural Use of Steel 2011 (Buildings Department – Hong Kong)

Price of First License 1,930.00 USD

RSTAB 8 | Steel and Aluminum Structures

STEEL NBR 8

Add-On Module

Design of steel members according to the Brazilian standard ABNT NBR 8800:2008

Price of First License 1,930.00 USD

Display Product Family