263x

2024-03-20

"Hoek-Brown" Material Model for Geotechnical Analysis

In the Geotechnical Analysis add-on, the Hoek-Brown material model is available. The model shows linear-elastic ideal-plastic material behavior. Its nonlinear strength criterion is the most common failure criterion for stone and rocks.

You can enter the material parameters using

Rock parameters directly, or alternatively via
GSI classification.

described.

Weiterführende Informationen zu diesem Materialmodell und der Definition der Eingabe in RFEM finden Sie im entsprechenden Kapitel im Online-Handbuch für das Add-On Geotechnische Analyse: Hoek-Brown Model .

Feature 002795 | "Hoek-Brown" Material Model for Geotechnical Analysis

Input Dialog Box – Hooke-Brown Model – Rock Mass Parameters

Links

Do you have any questions?

Events

2024-07-25

Modeling and Stress Analysis of Solid Models in RFEM 6

Webinar

Modeling and Stress Analysis of Solid Models in RFEM 6

2024-08-01

Most Frequently Asked Questions Answered by Dlubal Support Team

Webinar

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

2024-08-15

$Design of Timber Panel Walls in \n RFEM 6$

Webinar

Design of Timber Panel Walls in RFEM 6

2024-10-16

Online Training

RFEM 6 | Students | Introduction to Member Design

2024-10-23

Online Training

RSECTION 1 | Students | Introduction to Strength of Materials

2024-10-30

Online Training

RFEM 6 | Students | Introduction to FEM

2024-11-06

Online Training

RFEM 6 | Students | Introduction to Steel Design

2024-11-13

Online Training

RFEM 6 | Students | Introduction to Reinforced Concrete Design

2024-11-20

Online Training

RFEM 6 | Students | Introduction to Timber Design

2024-11-26 - 2024-11-27

Conference

BIM World MUNICH 2024

Videos

FAQ

FAQ 004281 | Does the RF‑LAMINATE program consider the shear correction factor for cross-laminated ...

Length: 00:00:21 min

FAQ

FAQ 004626 | Can I design laminated veneer lumber with RFEM/RSTAB?

Length: 00:01:58 min

FAQ

[EN] FAQ 004347 | Is it possible to perform a detailed analysis of connections, supports, or reinforcements ...

Length: 00:03:05 min

FAQ

[EN] FAQ 004275 | In spite of having defined average regions, they are not considered in the design ...

Length: 00:00:54 min

Event

Webinar | Fire Resistance Design of Timber Structures in RFEM 6

Length: 01:06:40 min

Event

Webinar | CSA O86:19 CLT Building Design in RFEM 6

Length: 01:04:39 min

RFEM 6 for Students | Introduction to Timber Design

Event

RFEM 6 for Students | Introduction to Timber Design | April 30, 2024

Length: 01:08:02 min

FAQ

FAQ 005494 | How can I model a timber beam with stiffening on both sides? (splice)

Length: 00:01:22 min

Product Feature

Fire Resistance Design of Surfaces for EN 1995, SIA 265, NDS, and CSA O86

Length: 00:00:56 min

Playlist

Models to Download

Model 005014 | Extension Made of Flat Timber Components

51x

11x

Extension Made of Flat Timber Components

Model 5015 | Timber Column Subjected to Fire Exposure

42x

Timber Column Under Fire Exposure

Model 5016 | Ceiling on Downstand Beams Subjected to Fire Exposure

40x

10x

Floor on Downstand Beams Under Fire Exposure

45x

19x

Timber Frame Studio

170x

Reversible R+4 Composite Timber/Concrete Building

133x

Structural Diagnosis and Design of Existing Timber Structure in Soria, Spain

77x

19x

Timber Slab | CLT Timber

Model 004905 | CLT and Timber Member Floor | CSA O86:19

215x

23x

CLT and Timber Member Floor | CSA O86:19

Model 004906 | Multistory Timber Building | CSA O86:19

355x

46x

Multistory Timber Building | CSA O86:19

Knowledge Base Articles

Influence of Duration of Action on Design Value of Strength

In addition to determining loads, some particularities concerning the load combinatorics in timber design have to be considered. Contrary to steel structures, where the largest loading results from all unfavorable actions, in timber construction, the strength values depend on the load duration and timber humidity. Special characteristics have to be considered as well for the serviceability limit state design. The following article discusses the effects on the design of wooden elements and how this is possible with RSTAB and RFEM.

In this article, the calculation of a timber panel wall with the beam panel thickness type is compared with a manual calculation.

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.

Product Features

Feature 002824 | OSB Material for USA and Canada

In RFEM, the oriented strand board (OSB) material is available for the USA and Canada. The material parameters are taken from the "Panel Design Specification manual".

Using the "Beam Panel" thickness type, you can model timber panel elements in 3D space. Simply specify the surface geometry and the timber panel elements are automatically generated using an internal member-surface construct, including the element connection stiffness. The Beam Panel thickness type is defined using the Multilayer Surfaces add-on.

A "beam panel" provides you with the following advantages:

Single-sided or double-sided sheathing
Automatic calculation of a semi-rigid coupling between studs and sheathing
- Nailed sheathing connection
- Stapled sheathing connection
- User-defined sheathing connection
Representation as a complete geometric 3D object (frame, studs, surface, etc.), including eccentricity and automatically calculated stiffness between elements
Consider openings via surface cells
Design of the individual structural elements utilizing the Timber Design add-on (full shear wall design planned for a future release)
Other material options available (e.g., particle board, gypsum, or fiberboard sheathing with cold-formed steel sections)

Go to Explanatory Video

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.

Go to Explanatory Video

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.

Frequently Asked Questions (FAQ)

Is it possible to perform a detailed analysis of connections, supports, or reinforcements of cross‑laminated timber plates in RF‑LAMINATE?

Does the RF‑LAMINATE program consider the shear correction factor for cross-laminated timber plates?

In spite of having defined average regions, they are not considered in the design in RF‑LAMINATE Surfaces. Which setting did I overlook?

What are the stiffness reduction factors k₃₃ and k₈₈ in the Multilayer Surfaces Add-on?

How can the NDS and CSA O86 factors be manually adjusted for consideration in the Timber Design add-on?

What calculation is carried out for the NDS Strength Configuration "Calculation of Torsion" options?

Customer Projects