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Dipl.-Ing. (FH) Gerhard Rehm
2022-11-10

FAQ 005327 | Why cannot I define a rotation when defining layers?

FAQ | 005327

Question:
Why cannot I define a rotation when defining layers?

Answer:
If no angle can be defined in the "Rotation" column, there is an isotropic material model selected for the material, where stiffnesses are identical in all directions and it is not necessary to define an angle.

If you use materials with anisotropic behavior (for example, timber), it is necessary to ensure that the "Orthotropic | Linear Elastic (Surfaces)" material model is selected.

Info

The "Orthotropic | Timber | Linear Elastic (Surfaces)" material model cannot be currently used in combination with the "Layers" thickness type.

As soon as switching to the orthotropic material model, the individual layers can be rotated accordingly.

Events
2024-04-30
Online Training | English
EN-GB | Flag Online Training
RFEM 6 | Students | Introduction to Timber Design
2024-05-02
Construction Stages in Membrane Structures with RFEM 6
EN-GB | Flag Webinar
Construction Stages in Membrane Structures with RFEM 6
2024-05-08
Online Training | English
EN-GB | Flag Online Training
RFEM 6 | Students | Introduction to Reinforced Concrete Design
2024-05-08
Cross-Section Modeling and \n Stress Analysis in RSECTION 1
EN-GB | Flag Webinar
Cross-Section Modeling and Stress Analysis in RSECTION 1
2024-05-15
Online Training | English
EN-GB | Flag Online Training
RFEM 6 | Students | Introduction to Steel Design
2024-05-16
Consideration of Construction Stages in RFEM 6
EN-GB | Flag Webinar
Consideration of Construction Stages in RFEM 6
2024-05-23
Most Frequently Asked Questions Answered by Dlubal Support Team
EN-GB | Flag 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
EN-GB | Flag 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
EN-GB | Flag Webinar
Modeling and Design of Steel Structures in RFEM 6 | Part 2: Combinations, Design, Documentation
2024-06-20
Most Frequently Asked Questions Answered by Dlubal Support Team
EN-GB | Flag Webinar
Most Frequently Asked Questions Answered by Dlubal Support Team | June 2024
2024-10-16
Online Training | English
EN-GB | Flag Online Training
RFEM 6 | Students | Introduction to Member Design
2024-10-23
Online Training | English
EN-GB | Flag Online Training
RSECTION 1 | Students | Introduction to Strength of Materials
Videos
FAQ | 005327
EN-US | Flag FAQ
FAQ 005327 | Why cannot I define a rotation when defining layers?
Length: 00:01:01 min
FAQ 005494 | How can I model a timber beam with stiffening on both sides? (splice)
EN-US | Flag FAQ
FAQ 005494 | How can I model a timber beam with stiffening on both sides? (splice)
Length: 00:01:22 min
EN-US | Flag Product Feature
Fire Resistance Design of Surfaces for EN 1995, SIA 265, NDS, and CSA O86
Length: 00:00:56 min
EN-US | Flag Event
Webinar | Timber Floor Calculations in RFEM 6
Length: 00:55:27 min
EN-US | Flag Event
RFEM 6 for Students | Introduction to Timber Design | November 29, 2023
Length: 01:10:03 min
EN-US | Flag Product Feature
Cross‑Section Optimization
Length: 00:00:56 min
FAQ|005410
EN-US | Flag FAQ
FAQ 005410 | How is the equivalent dimension calculated for round section in the Timber Design ad...
Length: 00:00:28 min
EN-US | Flag Event
Webinar | Introduction to RFEM 6 and RSTAB 9 | Part 2: Combinatorics, Design, Documentation
Length: 01:01:40 min
EN-US | Flag Event
Webinar | Member and Surface Design of Timber Components in RFEM 6
Length: 01:10:01 min
Models to Download
Model 000000 | Timber Frame Building
348x
80x
Timber Frame Building
Model 004809 | Cross-Laminated Timber Building
356x
53x
Cross-Laminated Timber Building
Timber Slab
195x
23x
Timber Slab
Model 004717 | Ceiling with Line Releases
244x
26x
Ceiling with Line Releases
Model 004707 | Office Building of Municipal Works in Kirchheim unter Teck, Germany
268x
Office Building Timber Structure with Reinforced Concrete Elements
Model 004695 | Timber Industrial Hall Siegrist Igor Carpenteria
467x
Timber Industrial Hall Siegrist Igor Carpenteria
Model 004625 | Trussed Roof
450x
50x
Trussed Roof
Model 004605 | Timber-Concrete Building
469x
58x
Timber-Concrete Building
Model 004601 | Wooden Column Base
641x
53x
Timber Column Base
Knowledge Base Articles
KB 001848 | Timber Column Design as per the 2018 NDS Standard in RFEM 6
Using the Timber Design add-on, timber column design is possible according to the 2018 NDS standard ASD method. Accurately calculating timber member compressive capacity and adjustment factors is important for safety considerations and design. The following article will verify the maximum critical buckling strength calculated by the Timber Design add-on using step-by-step analytical equations as per the NDS 2018 standard including the compressive adjustment factors, adjusted compressive design value, and final design ratio.
KB 001825 | WebService & API for Analysis of Construction Stages
When calculating regular structures, data input is often not complicated but time-consuming. Input automation can save valuable time. The task described in the present article is to consider the stories of a house as single construction stages. Data is entered using a C# program so that the user does not have to enter the elements of the individual floors manually.
WebService & API C# - Cover Image
Our webservice offers users the opportunity to communicate with RFEM 6 and RSTAB 9 using various programming languages. Dlubal's high-level functions (HLFs) allow you to expand and simplify the WebService's functionality. In line with RFEM 6 and RSTAB 9, using our WebService makes the engineer's work easier and faster. Check it out now! This tutorial shows you how to use the C# library by means of a simple example.
KB 001851 | Two-Hinged Frame with Individual Pin-Ended Column in Plane
The modal relevance factor is a result of the linear stability analysis and qualitatively describes the degree of participation of individual members in a specific mode shape.
Screenshots
This image displays a user interface of the RFEM 6 software, which is used for structural analysis and design. In the main area of the interface, there is a complex 3D model of a timber structure presented in two different styles: before and after deformation.
Global Deformation - Before and After Position of Timber Structure Due to Wind Forces in RFEM 6 | Knies Magician's Hat in Rapperswil, Switzerland © Ghisleni Partner AG
This image displays a user interface of the RFEM 6 software, which is used for structural analysis and design. In the main area of the interface, there is a complex 3D model of a timber structure presented in two different views: a transparent outline view on the left and a colored structural analysis on the right.
Global Deformation of Timber Structure Due to Wind Forces in RFEM 6 | Knies Magician's Hat in Rapperswil, Switzerland © Ghisleni Partner AG
RFEM Model of Palazzo Meridia Office and Retail Building in Nice, France
RFEM Model of Palazzo Meridia Office and Retail Building in Nice, France | © Architecture-Studio
Tower Structure with Wind Load Generation in RFEM 6
Timber Structure with Wind Load Generation in RFEM 6 | © STATIC Solution s.r.o
Exterior View of Gym | © KL-Architectes
Exterior View of Gym | © KL-Architectes
The construction of a gym in Metz
The construction of a gym in Metz | © KL-Architectes
Feature 002792 | Timber Panel Element
Definition of Timber Panel Element
Deformations of Gym Structure
Deformations of Gym Structure | © BET Moselle Bois
Deformations of Gym Structure | © BET Moselle Bois
Product Features
Feature 002792 | Timber Panel Element

Using the "Beam Panel" thickness type, you can model timber panel elements in 3D space. You just specify the surface geometry and the timber panel elements are generated using an internal member-surface construct, including the simulation of the connection flexibility.

Feature 002585 | Fire Resistance Design of Surfaces for EN 1995 and SIA 265

You have the option to perform the fire resistance design of surfaces using the reduced cross-section method. The reduction is applied over the surface thickness. It is possible to perform the design checks for all timber materials allowed for the design.

For cross-laminated timber, depending on the type of adhesive, you can select whether it is possible for individual carbonized layer parts to fall off, and whether you can expect increased charring in certain layer areas.

Feature 002615 | Cross-Laminated Timber Manufacturer Library for USA, Canada, and Switzerland

Among others, the following cross-laminated timber manufacturers are available in the layer structure library:

  • Binderholz (USA)
  • KLH (USA, CAN)
  • Kalesnikoff (USA, CAN)
  • Nordic Structures (USA, CAN)
  • Mercer Mass Timber
  • SmartLam
  • Sterling Structural
  • Superstructures listed in Lignatec Edition 32 "Cross-Laminated Timber of Swiss Production"

By importing a structure from the layer structure library, all relevant parameters are adopted automatically. The library is continually updated.

Geodesic Dome

The Timber Design add-on for RFEM 6 / RSTAB 9 is multi-purpose and combines a large number of additional elements. [*S16332764*] Timber Design Add-on for RFEM 6

Frequently Asked Questions (FAQ)
Why cannot I define a rotation when defining layers?
How can I model a timber beam with stiffening on both sides? (splice)
How can I generate an area load on members via cells in RFEM 6 or RSTAB 9?
Which programs do I need for laminate and sandwich structures, or cross-laminated timber (CLT)?
Which Dlubal Software programs can I use to calculate and design timber structures?
How can I connect surfaces to other surfaces or members in a hinged/semi-rigid way?
What are Line Hinges and Line Releases?
Customer Projects
Model of Gym | © BET Moselle Bois
Metz Gym as Showcase of Engineering and Sustainability in Modern Construction, Metz, France
Siegrist Igor Carpenteria Warehouse in Maggia, Switzerland
Siegrist Igor Carpenteria Warehouse in Maggia, Switzerland
Office Building of Stadtwerke Kirchheim unter Teck, Germany (Rendering) | © MEDIA 4D GmbH
Office Building of Stadtwerke Kirchheim unter Teck, Germany
Quai M, the New Concert Hall in La Roche-sur-Yon, France (© LCA Construction Bois)
New Concert Hall in La Roche-sur-Yon, France
Anoeta Square Roofing
Timber Roof with Folded Plates in Anoeta, Spain
Gazebo in Monbidoupark
Gazebo in Monbijoupark in Bern, Switzerland
King Louis Bridge, Kempten, Germany | © Konstruktionsgruppe Bauen AG
King Louis Bridge in Kempten, Germany
Timber Gridshell "Moritzplatz Demonstrator" in Augsburg, Germany | © Digital Timber Construction DTC, TH Augsburg
Moritzplatz Demonstrator, Augsburg
Apartment House BSH20A "Stories" in Amsterdam, Netherlands | © MWA Hart Nibbrig, Amsterdam
Apartment House BSH20A "Stories" in Amsterdam, Netherlands
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