549x

001772

2020-08-26

[EN] FAQ 004666 | Why is it not possible to change the solving method for the equation system of my ...

Name: [EN] FAQ 004666 | Why is it not possible to change the solving method for the equation system of my ...
Uploaded: 2020-08-26T00:00:00.000+01:00

Question:
Why is it not possible to change the solving method for the equation system of my model?

Answer:
Basically, there are six methods available for solving the nonlinear algebraic system of equations. However, if your model does not include any nonlinearities (that is, you have created a purely linear system), access to these selection fields is blocked.

As soon as you define a nonlinearity in the model, the selection field for the solving methods is activated, and you can select the desired solving method.

Do you have any questions?

Events

2024-04-24

Online Training

RFEM 6 | Students | Introduction to FEM

2024-04-25

Stiffening Design in RFEM 6 Using Building Model

Webinar

Stiffening Design in RFEM 6 Using Building Model

2024-04-25

AISC 360-22 Steel Connection Design in RFEM 6

Webinar

AISC 360-22 Steel Connection Design in RFEM 6 (USA)

2024-04-30

Online Training

RFEM 6 | Students | Introduction to Timber Design

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

2024-05-08

$Cross-Section Modeling and \n Stress Analysis in RSECTION 1$

Webinar

Cross-Section Modeling and Stress Analysis in RSECTION 1

2024-05-15

Online Training

RFEM 6 | Students | Introduction to Steel Design

2024-05-16

Consideration of Construction Stages in RFEM 6

Webinar

Consideration of Construction Stages in RFEM 6

2024-05-23

Most Frequently Asked Questions Answered by Dlubal Support Team

Webinar

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

2024-05-29

$Steel Structures in RFEM 6 \n Part 1: Modeling, Load Input$

Webinar

Modeling and Design of Steel Structures in RFEM 6 | Part 1: Modeling, Load Input

2024-06-06

$Steel Structures in RFEM 6 \n Part 2: Combinations, Design, Documentation$

Webinar

Modeling and Design of Steel Structures in RFEM 6 | Part 2: Combinations, Design, Documentation

Videos

General

Nonlinear Structural Analysis - Dlubal Solutions

Length: 00:00:39 min

FAQ

FAQ 005037 | Are the models and presentations from Info Day 2018 freely available and, can I ...

Length: 00:00:06 min

Knowledge Base

KB 000863 | Definition of Support Failure

Length: 00:00:42 min

Knowledge Base

KB 00693 | “Spring” Member Type

Length: 00:00:27 min

Knowledge Base

KB 000861 | Deactivation of Nonlinear Effects

Length: 00:00:14 min

Knowledge Base

KB 000670 | Saving and Importing Diagrams for Member Hinges

Length: 00:00:34 min

Knowledge Base

KB 000583 | Creating Elastic-Plastic 2D/3D Material Model

Length: 00:00:42 min

Knowledge Base

KB 000601 | Using Nonlinear Elastic Material Model

Length: 00:00:40 min

Knowledge Base

KB 000968 | Yield Laws in Isotropic Nonlinear Elastic Material Model

Length: 00:00:43 min

Playlist

Models to Download

Model 004588 | Timber Column Anchor Plate

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Timber Column Anchor Plate

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Neoprene Support

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Column – Base Connection

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Model 004250 | Bidirectional Ribbed Slab

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Knowledge Base Articles

The Parametric FEM Toolbox is a Grasshopper plugin that is publicly available at https://www.food4rhino.com/app/parametric-fem-toolbox (© Diego APELLÁNIZ)

This article describes the development of the Parametric FEM Toolbox and some of the possible workflows with this new tool.

"Failure all if PZ' Negative" Nonlinear Support

Supports contributing to a load reduction only under compression or tension can be defined as nonlinear supports in RFEM and RSTAB. It is not always easy for the user to select the correct nonlinearity for "failure under tension" or "failure under compression".

In RFEM and RSTAB, you can export the calculation results to an Excel document.

The RFEM5 and RSTAB8 programs offer a "Spring" option when defining a member under the member types.

Screenshots

Model 004812 | Verification Example 0213 | 1

Model 004244 | Neoprene Support

Model 004588 | Timber Column Anchor Plate

Model 004572 | Steel-Wood Connection

Model 004570 | Hinged Metal Base

Model 004568 | Wooden Beams Joint

Model 004565 | Round HSS Profiles Connection

Concrete Design

Clipping from #030 BIM Master Plan for 2022 feat. Bernd Schlenker

Product Features

If you are interested in making your daily work easier and more efficient, you should also pay attention to this feature. Program configuration menus and toolbars can be freely customized. This allows you to arrange your frequently used functions in a user-defined way and save time. Everything from the beginning? No problem: You can restore the default settings of the program with a mouse click. Tables, navigators, and toolbars can also be moved and docked as required.

Furthermore, you can use the configuration manager to set the graphic display properties, toolbars, and so on in a user-defined way and save them as your own configuration. Thus, the software becomes your individual productivity enhancer.

Dlubal Software customers come from all over the world and there are, of course, numerous language options for the structural analysis software. It is possible to operate the program in the following languages: English, Chinese, Czech, Dutch, French, German, Italian, Polish, Portuguese, Russian, and Spanish.

You can also modify the design of the RFEM/RSTAB user interface: There are nine different styles of graphical user interface to choose from; for example: Office 2007 Blue, Silver, Aqua, and Black. Customize the programs to your individual needs.

Navigator Shortcut Menu for Creating New Surface

The Dlubal programs are user-friendly. This way, you will have a short induction period and easy handling of the software.

Your structure is created in a user interface usual for CAD or via tables. By right-clicking the graphical or navigator objects, you can activate a shortcut menu that allows you to easily create or modify the objects. Try it out for yourself and let yourself be inspired by the intuitive user interface! Therefore, you can create the structural and loading objects in a minimum amount of time.

You also have many useful options for printing. You can mass print the model, loads, and results. In this case, it is possible to create graphics from different defined directions. For example, you can print all internal forces as an isometric view with just a single mouse click. This way, you can always keep track of things.

Frequently Asked Questions (FAQ)

How can I permanently save the parameters in the "Units and Decimal Places" dialog box?

I have a roof structure resting on a steel column that runs to the foundations. The column runs through a perimeter wall that supports the false ceiling. A considerable part of the load from the roof is transferred to the wall. I want the steel column to carry all the vertical loads from the roof. How can I do it?

Are the models and presentations from Info Day 2018 freely available, and can you send them to me?

How does the "Orthotropic Plastic" material model work in RFEM?

There are two different add-on modules for a response spectrum analysis in RF‑/DYNAM Pro. What can be the reasons for the different results of both add-on modules?

When converting from the manual definition of reinforcement areas to the automatic arrangement of reinforcement according to Window 1.4, the result of the deformation calculation differs, although the basic reinforcement has not been modified. What is the reason for this change?

Customer Projects

CP 001237 | Sky Bridge (Photo: © Denis Pagáč)

World's Longest Suspension Footbridge in Dolní Morava, Czech Republic

Footbridge over the Serio River, Italy

Pedestrian and Cyclist Bridge "Herzogsteg" in Eichstätt, Germany

Lighted Toll Station | © Mr. Yunchao Ding, Jiangsu Jingong Space Structure Co., Ltd.

Dawang Toll Station in Shaanxi, China

RFEM Model of High-Bay Racking with Deformation Results

High-Bay Racking, China

Multi-Energy Station in Les Sables-d'Olonne, France

Siegrist Igor Carpenteria Warehouse in Maggia, Switzerland

Front View of Office Building with V-Shaped Steel Composite Columns | © Die Tragwerker GmbH

Office Building with Integrated Visitor Center and Parking Garage in Geiselbulach, Germany

Metz Gym as Showcase of Engineering and Sustainability in Modern Construction, Metz, France

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